MULTISPECIES: LysR family transcriptional regulator [Vibrio]
Protein Classification
LysR family transcriptional regulator( domain architecture ID 10444048)
LysR family transcriptional regulator containing an N-terminal HTH (helix-turn-helix) DNA-binding domain and a C-terminal substrate binding domain, which is structurally homologous to the type 2 periplasmic binding proteins; similar to Vibrio cholerae YidZ, a putative transcriptional regulator involved in anaerobic NO protection, as well other transcriptional regulators of different genes
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||
| PBP2_Nitroaromatics_like | cd08417 | The C-terminal substrate binding domain of LysR-type transcriptional regulators that involved ... |
108-304 | 1.09e-36 | ||||
The C-terminal substrate binding domain of LysR-type transcriptional regulators that involved in the catabolism of nitroaromatic/naphthalene compounds and that of related regulators; contains the type 2 periplasmic binding fold; This CD includes the C-terminal substrate binding domain of LysR-type transcriptional regulators involved in the catabolism of dinitrotoluene and similar compounds, such as DntR, NahR, and LinR. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. Also included are related LysR-type regulators clustered together in phylogenetic trees, including NodD, ToxR, LeuO, SyrM, TdcA, and PnbR. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. : Pssm-ID: 176109 [Multi-domain] Cd Length: 200 Bit Score: 130.03 E-value: 1.09e-36
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| HTH_1 | pfam00126 | Bacterial regulatory helix-turn-helix protein, lysR family; |
8-67 | 1.29e-12 | ||||
Bacterial regulatory helix-turn-helix protein, lysR family; : Pssm-ID: 459683 [Multi-domain] Cd Length: 60 Bit Score: 61.63 E-value: 1.29e-12
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| Name | Accession | Description | Interval | E-value | |||||
| PBP2_Nitroaromatics_like | cd08417 | The C-terminal substrate binding domain of LysR-type transcriptional regulators that involved ... |
108-304 | 1.09e-36 | |||||
The C-terminal substrate binding domain of LysR-type transcriptional regulators that involved in the catabolism of nitroaromatic/naphthalene compounds and that of related regulators; contains the type 2 periplasmic binding fold; This CD includes the C-terminal substrate binding domain of LysR-type transcriptional regulators involved in the catabolism of dinitrotoluene and similar compounds, such as DntR, NahR, and LinR. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. Also included are related LysR-type regulators clustered together in phylogenetic trees, including NodD, ToxR, LeuO, SyrM, TdcA, and PnbR. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176109 [Multi-domain] Cd Length: 200 Bit Score: 130.03 E-value: 1.09e-36
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| LysR | COG0583 | DNA-binding transcriptional regulator, LysR family [Transcription]; |
7-303 | 2.19e-30 | |||||
DNA-binding transcriptional regulator, LysR family [Transcription]; Pssm-ID: 440348 [Multi-domain] Cd Length: 256 Bit Score: 114.96 E-value: 2.19e-30
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| leuO | PRK09508 | leucine transcriptional activator; Reviewed |
1-304 | 6.09e-23 | |||||
leucine transcriptional activator; Reviewed Pssm-ID: 181918 [Multi-domain] Cd Length: 314 Bit Score: 96.25 E-value: 6.09e-23
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| HTH_1 | pfam00126 | Bacterial regulatory helix-turn-helix protein, lysR family; |
8-67 | 1.29e-12 | |||||
Bacterial regulatory helix-turn-helix protein, lysR family; Pssm-ID: 459683 [Multi-domain] Cd Length: 60 Bit Score: 61.63 E-value: 1.29e-12
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| LysR_substrate | pfam03466 | LysR substrate binding domain; The structure of this domain is known and is similar to the ... |
101-303 | 1.83e-12 | |||||
LysR substrate binding domain; The structure of this domain is known and is similar to the periplasmic binding proteins. This domain binds a variety of ligands that caries in size and structure, such as amino acids, sugar phosphates, organic acids, metal cations, flavonoids, C6-ring carboxylic acids, H2O2, HOCl, homocysteine, NADPH, ATP, sulphate, muropeptides, acetate, salicylate, citrate, phenol- and quinolone derivatives, acetylserines, fatty acid CoA, shikimate, chorismate, homocysteine, indole-3-acetic acid, Na(I), c-di-GMP, ppGpp and hydrogen peroxide (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043). Pssm-ID: 460931 [Multi-domain] Cd Length: 205 Bit Score: 65.00 E-value: 1.83e-12
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| MntR | COG1321 | Mn-dependent transcriptional regulator MntR, DtxR family [Transcription]; |
10-69 | 2.42e-05 | |||||
Mn-dependent transcriptional regulator MntR, DtxR family [Transcription]; Pssm-ID: 440932 [Multi-domain] Cd Length: 135 Bit Score: 43.27 E-value: 2.42e-05
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| LysR_Sec_metab | NF040786 | selenium metabolism-associated LysR family transcriptional regulator; LysR family ... |
7-132 | 3.08e-03 | |||||
selenium metabolism-associated LysR family transcriptional regulator; LysR family transcriptional regulators regularly appear encoded adjacent to selenecysteine incorporation proteins such as SelB. This model represents one especially well-conserved subgroup of such transcription factors from species such as Merdimonas faecis, Sellimonas intestinalis, Syntrophotalea acetylenica, and Hydrogenivirga caldilitoris. Seed alignment members were selected by proximity to selB, but not all family members are expected to have similar genomic locations. Pssm-ID: 468737 [Multi-domain] Cd Length: 298 Bit Score: 38.75 E-value: 3.08e-03
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| HTH_ARSR | cd00090 | Arsenical Resistance Operon Repressor and similar prokaryotic, metal regulated homodimeric ... |
11-69 | 3.38e-03 | |||||
Arsenical Resistance Operon Repressor and similar prokaryotic, metal regulated homodimeric repressors. ARSR subfamily of helix-turn-helix bacterial transcription regulatory proteins (winged helix topology). Includes several proteins that appear to dissociate from DNA in the presence of metal ions. Pssm-ID: 238042 [Multi-domain] Cd Length: 78 Bit Score: 35.74 E-value: 3.38e-03
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| HTH_ARSR | smart00418 | helix_turn_helix, Arsenical Resistance Operon Repressor; |
13-45 | 4.06e-03 | |||||
helix_turn_helix, Arsenical Resistance Operon Repressor; Pssm-ID: 197713 [Multi-domain] Cd Length: 66 Bit Score: 35.26 E-value: 4.06e-03
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| rbcR | CHL00180 | LysR transcriptional regulator; Provisional |
8-81 | 7.84e-03 | |||||
LysR transcriptional regulator; Provisional Pssm-ID: 177082 [Multi-domain] Cd Length: 305 Bit Score: 37.31 E-value: 7.84e-03
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| Name | Accession | Description | Interval | E-value | ||||||
| PBP2_Nitroaromatics_like | cd08417 | The C-terminal substrate binding domain of LysR-type transcriptional regulators that involved ... |
108-304 | 1.09e-36 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulators that involved in the catabolism of nitroaromatic/naphthalene compounds and that of related regulators; contains the type 2 periplasmic binding fold; This CD includes the C-terminal substrate binding domain of LysR-type transcriptional regulators involved in the catabolism of dinitrotoluene and similar compounds, such as DntR, NahR, and LinR. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. Also included are related LysR-type regulators clustered together in phylogenetic trees, including NodD, ToxR, LeuO, SyrM, TdcA, and PnbR. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176109 [Multi-domain] Cd Length: 200 Bit Score: 130.03 E-value: 1.09e-36
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| LysR | COG0583 | DNA-binding transcriptional regulator, LysR family [Transcription]; |
7-303 | 2.19e-30 | ||||||
DNA-binding transcriptional regulator, LysR family [Transcription]; Pssm-ID: 440348 [Multi-domain] Cd Length: 256 Bit Score: 114.96 E-value: 2.19e-30
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| leuO | PRK09508 | leucine transcriptional activator; Reviewed |
1-304 | 6.09e-23 | ||||||
leucine transcriptional activator; Reviewed Pssm-ID: 181918 [Multi-domain] Cd Length: 314 Bit Score: 96.25 E-value: 6.09e-23
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| PBP2_DntR_NahR_LinR_like | cd08459 | The C-terminal substrate binding domain of LysR-type transcriptional regulators that are ... |
110-304 | 4.92e-22 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulators that are involved in the catabolism of dinitrotoluene, naphthalene and gamma-hexachlorohexane; contains the type 2 periplasmic binding fold; This CD includes LysR-like bacterial transcriptional regulators, DntR, NahR, and LinR, which are involved in the degradation of aromatic compounds. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. DntR from Burkholderia species controls genes encoding enzymes for oxidative degradation of the nitro-aromatic compound 2,4-dinitrotoluene. The active form of DntR is homotetrameric, consisting of a dimer of dimers. NahR is a salicylate-dependent transcription activator of the nah and sal operons for naphthalene degradation. Salicylic acid is an intermediate of the oxidative degradation of the aromatic ring in soil bacteria. LinR positively regulates expression of the genes (linD and linE) encoding enzymes for gamma-hexachlorocyclohexane (a haloorganic insecticide) degradation. Expression of linD and linE are induced by their substrates, 2,5-dichlorohydroquinone (2,5-DCHQ) and chlorohydroquinone (CHQ). The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176148 [Multi-domain] Cd Length: 201 Bit Score: 91.48 E-value: 4.92e-22
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| PRK10216 | PRK10216 | HTH-type transcriptional regulator YidZ; |
3-305 | 1.80e-16 | ||||||
HTH-type transcriptional regulator YidZ; Pssm-ID: 182312 [Multi-domain] Cd Length: 319 Bit Score: 78.32 E-value: 1.80e-16
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| PBP2_DntR_like_2 | cd08464 | The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
110-304 | 1.84e-15 | ||||||
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator similar to DntR, which is involved in the catabolism of dinitrotoluene; contains the type 2 periplasmic binding fold; This CD includes an uncharacterized LysR-type transcriptional regulator similar to DntR, NahR, and LinR, which are involved in the degradation of aromatic compounds. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176153 [Multi-domain] Cd Length: 200 Bit Score: 73.42 E-value: 1.84e-15
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| PBP2_LeuO | cd08466 | The C-terminal substrate binding domain of LysR-type transcriptional regulator LeuO, an ... |
110-304 | 1.85e-15 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulator LeuO, an activator of leucine synthesis operon, contains the type 2 periplasmic binding fold; LeuO, a LysR-type transcriptional regulator, was originally identified as an activator of the leucine synthesis operon (leuABCD). Subsequently, LeuO was found to be not a specific regulator of the leu gene but a global regulator of unrelated various genes. LeuO activates bglGFB (utilization of beta-D-glucoside) and represses cadCBA (lysine decarboxylation) and dsrA (encoding a regulatory small RNA for translational control of rpoS and hns). LeuO also regulates the yjjQ-bglJ operon which coding for a LuxR-type transcription factor. In Salmonella enterica serovar Typhi, LeuO is a positive regulator of ompS1 (encoding an outer membrane), ompS2 (encoding a pathogenicity determinant), and assT, while LeuO represses the expression of OmpX and Tpx. Both osmS1 and osmS2 influence virulence in the mouse model of Salmonella. In Vibrio cholerae, LeuO is involved in control of biofilm formation and in the stringent response. The topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176155 [Multi-domain] Cd Length: 200 Bit Score: 73.44 E-value: 1.85e-15
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| PBP2_SyrM | cd08467 | The C-terminal substrate binding of LysR-type symbiotic regulator SyrM, which activates ... |
110-298 | 4.93e-15 | ||||||
The C-terminal substrate binding of LysR-type symbiotic regulator SyrM, which activates expression of nodulation gene NodD3, contains the type 2 periplasmic binding fold; Rhizobium is a nitrogen fixing bacteria present in the roots of leguminous plants, which fixes atmospheric nitrogen to the soil. Most Rhizobium species possess multiple nodulation (nod) genes for the development of nodules. For example, Rhizobium meliloti possesses three copies of nodD genes. NodD1 and NodD2 activate nod operons when Rhizobium is exposed to inducers synthesized by the host plant, while NodD3 acts independent of plant inducers and requires the symbiotic regulator SyrM for nod gene expression. SyrM activates the expression of the regulatory nodulation gene nodD3. In turn, NodD3 activates expression of syrM. In addition, SyrM is involved in exopolysaccharide synthesis. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176156 [Multi-domain] Cd Length: 200 Bit Score: 72.09 E-value: 4.93e-15
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| PBP2_PnbR | cd08469 | The C-terminal substrate binding domain of LysR-type transcriptional regulator PnbR, which is ... |
108-298 | 6.36e-14 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulator PnbR, which is involved in regulating the pnb genes encoding enzymes for 4-nitrobenzoate catabolism, contains the type 2 periplasmic binding fold; PnbR is the regulator of one or both of the two pnb genes that encoding enzymes for 4-nitrobenzoate catabolism. In Pseudomonas putida strain, pnbA encodes a 4-nitrobenzoate reductase, which is responsible for catalyzing the direct reduction of 4-nitrobenzoate to 4-hydroxylaminobenzoate, and pnbB encodes a 4-hydroxylaminobenzoate lyase, which catalyzes the conversion of 4-hydroxylaminobenzoate to 3, 4-dihydroxybenzoic acid and ammonium. The topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176158 Cd Length: 221 Bit Score: 69.74 E-value: 6.36e-14
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| PBP2_DntR_like_3 | cd08461 | The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
110-303 | 1.00e-13 | ||||||
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator similar to DntR, which is involved in the catabolism of dinitrotoluene; contains the type 2 periplasmic binding fold; This CD includes an uncharacterized LysR-type transcriptional regulator similar to DntR, NahR, and LinR, which are involved in the degradation of aromatic compounds. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176150 [Multi-domain] Cd Length: 198 Bit Score: 68.46 E-value: 1.00e-13
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| PBP2_DntR_like_4 | cd08463 | The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
111-303 | 3.41e-13 | ||||||
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator similar to DntR, which is involved in the catabolism of dinitrotoluene; contains the type 2 periplasmic binding fold; This CD includes an uncharacterized LysR-type transcriptional regulator similar to DntR, NahR, and LinR, which are involved in the degradation of aromatic compounds. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176152 [Multi-domain] Cd Length: 203 Bit Score: 66.95 E-value: 3.41e-13
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| HTH_1 | pfam00126 | Bacterial regulatory helix-turn-helix protein, lysR family; |
8-67 | 1.29e-12 | ||||||
Bacterial regulatory helix-turn-helix protein, lysR family; Pssm-ID: 459683 [Multi-domain] Cd Length: 60 Bit Score: 61.63 E-value: 1.29e-12
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| LysR_substrate | pfam03466 | LysR substrate binding domain; The structure of this domain is known and is similar to the ... |
101-303 | 1.83e-12 | ||||||
LysR substrate binding domain; The structure of this domain is known and is similar to the periplasmic binding proteins. This domain binds a variety of ligands that caries in size and structure, such as amino acids, sugar phosphates, organic acids, metal cations, flavonoids, C6-ring carboxylic acids, H2O2, HOCl, homocysteine, NADPH, ATP, sulphate, muropeptides, acetate, salicylate, citrate, phenol- and quinolone derivatives, acetylserines, fatty acid CoA, shikimate, chorismate, homocysteine, indole-3-acetic acid, Na(I), c-di-GMP, ppGpp and hydrogen peroxide (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043). Pssm-ID: 460931 [Multi-domain] Cd Length: 205 Bit Score: 65.00 E-value: 1.83e-12
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| PBP2_NodD | cd08462 | The C-terminal substsrate binding domain of NodD family of LysR-type transcriptional ... |
110-303 | 2.31e-10 | ||||||
The C-terminal substsrate binding domain of NodD family of LysR-type transcriptional regulators that regulates the expression of nodulation (nod) genes; contains the type 2 periplasmic binding fold; The nodulation (nod) genes in soil bacteria play important roles in the development of nodules. nod genes are involved in synthesis of Nod factors that are required for bacterial entry into root hairs. Thirteen nod genes have been identified and are classified into five transcription units: nodD, nodABCIJ, nodFEL, nodMNT, and nodO. NodD is negatively auto-regulates its own expression of nodD gene, while other nod genes are inducible and positively regulated by NodD in the presence of flavonoids released by plant roots. This substrate-binding domain has significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176151 [Multi-domain] Cd Length: 200 Bit Score: 59.18 E-value: 2.31e-10
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| PBP2_DntR_like_1 | cd08460 | The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
107-304 | 5.39e-10 | ||||||
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator similar to DntR, which is involved in the catabolism of dinitrotoluene; contains the type 2 periplasmic binding fold; This CD includes an uncharacterized LysR-type transcriptional regulator similar to DntR, NahR, and LinR, which are involved in the degradation of aromatic compounds. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176149 [Multi-domain] Cd Length: 200 Bit Score: 57.99 E-value: 5.39e-10
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| PRK11482 | PRK11482 | DNA-binding transcriptional regulator; |
3-236 | 1.04e-07 | ||||||
DNA-binding transcriptional regulator; Pssm-ID: 183159 [Multi-domain] Cd Length: 317 Bit Score: 52.42 E-value: 1.04e-07
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| PRK09906 | PRK09906 | DNA-binding transcriptional regulator HcaR; Provisional |
14-191 | 5.15e-07 | ||||||
DNA-binding transcriptional regulator HcaR; Provisional Pssm-ID: 182137 [Multi-domain] Cd Length: 296 Bit Score: 50.15 E-value: 5.15e-07
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| PBP2_LTTR_substrate | cd05466 | The substrate binding domain of LysR-type transcriptional regulators (LTTRs), a member of the ... |
97-301 | 1.06e-06 | ||||||
The substrate binding domain of LysR-type transcriptional regulators (LTTRs), a member of the type 2 periplasmic binding fold protein superfamily; This model and hierarchy represent the the substrate-binding domain of the LysR-type transcriptional regulators that form the largest family of prokaryotic transcription factor. Homologs of some of LTTRs with similar domain organizations are also found in the archaea and eukaryotic organisms. The LTTRs are composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The genes controlled by the LTTRs have diverse functional roles including amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, oxidative stress responses, nodule formation of nitrogen-fixing bacteria, synthesis of virulence factors, toxin production, attachment and secretion, to name a few. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the PBP2 superfamily includes the substrate-binding domains from ionotropic glutamate receptors, LysR-like transcriptional regulators, and unorthodox sensor proteins involved in signal transduction. Pssm-ID: 176102 [Multi-domain] Cd Length: 197 Bit Score: 48.37 E-value: 1.06e-06
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| PRK09791 | PRK09791 | LysR family transcriptional regulator; |
29-217 | 2.16e-06 | ||||||
LysR family transcriptional regulator; Pssm-ID: 182077 [Multi-domain] Cd Length: 302 Bit Score: 48.22 E-value: 2.16e-06
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| PBP2_ToxR | cd08465 | The C-terminal substrate binding domain of LysR-type transcriptional regulator ToxR regulates ... |
111-299 | 6.12e-06 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulator ToxR regulates the expression of the toxoflavin biosynthesis genes; contains the type 2 periplasmic bindinig fold; In soil bacterium Burkholderia glumae, ToxR regulates the toxABCDE and toxFGHI operons in the presence of toxoflavin as a coinducer. Additionally, the expression of both operons requires a transcriptional activator, ToxJ, whose expression is regulated by the TofI or TofR quorum-sensing system. The biosynthesis of toxoflavin is suggested to be synthesized in a pathway common to the synthesis of riboflavin. The topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176154 Cd Length: 200 Bit Score: 46.15 E-value: 6.12e-06
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| PBP2_Pa0477 | cd08468 | The C-terminal substrate biniding domain of an uncharacterized LysR-like transcriptional ... |
110-304 | 6.63e-06 | ||||||
The C-terminal substrate biniding domain of an uncharacterized LysR-like transcriptional regulator Pa0477 related to DntR, contains the type 2 periplasmic binding fold; LysR-type transcriptional regulator Pa0477 is related to DntR, which controls genes encoding enzymes for oxidative degradation of the nitro-aromatic compound 2,4-dinitrotoluene. The transcription of the genes encoding enzymes involved in such degradation is regulated and expression of these enzymes is enhanced by inducers, which are either an intermediate in the metabolic pathway or compounds to be degraded. The topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176157 [Multi-domain] Cd Length: 202 Bit Score: 45.89 E-value: 6.63e-06
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| PBP2_LTTR_like_4 | cd08440 | TThe C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
104-275 | 6.67e-06 | ||||||
TThe C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator, contains the type 2 periplasmic binding fold; LysR-transcriptional regulators comprise the largest family of prokaryotic transcription factor. Homologs of some of LTTRs with similar domain organizations are also found in the archaea and eukaryotic organisms. The LTTRs are composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The genes controlled by the LTTRs have diverse functional roles including amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to a name a few. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176131 [Multi-domain] Cd Length: 197 Bit Score: 45.98 E-value: 6.67e-06
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| PRK12682 | PRK12682 | transcriptional regulator CysB-like protein; Reviewed |
1-191 | 1.96e-05 | ||||||
transcriptional regulator CysB-like protein; Reviewed Pssm-ID: 183679 [Multi-domain] Cd Length: 309 Bit Score: 45.37 E-value: 1.96e-05
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| PBP2_MetR | cd08441 | The C-terminal substrate binding domain of LysR-type transcriptional regulator metR, which ... |
110-193 | 2.13e-05 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulator metR, which regulates the expression of methionine biosynthetic genes, contains type 2 periplasmic binding fold; MetR, a member of the LysR family, is a positive regulator for the metA, metE, metF, and metH genes. The sulfur-containing amino acid methionine is the universal initiator of protein synthesis in all known organisms and its derivative S-adenosylmethionine (SAM) and autoinducer-2 (AI-2) are involved in various cellular processes. SAM plays a central role as methyl donor in methylation reactions, which are essential for the biosynthesis of phospholipids, proteins, DNA and RNA. The interspecies signaling molecule AI-2 is involved in cell-cell communication process (quorum sensing) and gene regulation in bacteria. Although methionine biosynthetic enzymes and metabolic pathways are well conserved in bacteria, the regulation of methionine biosynthesis involves various regulatory mechanisms. In Escherichia coli and Salmonella enterica serovar Typhimurium, MetJ and MetR regulate the expression of methionine biosynthetic genes. The MetJ repressor negatively regulates the E. coli met genes, except for metH. Several of these genes are also under the positive control of MetR with homocysteine as a co-inducer. In Bacillus subtilis, the met genes are controlled by S-box termination-antitermination system. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176132 Cd Length: 198 Bit Score: 44.48 E-value: 2.13e-05
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| MntR | COG1321 | Mn-dependent transcriptional regulator MntR, DtxR family [Transcription]; |
10-69 | 2.42e-05 | ||||||
Mn-dependent transcriptional regulator MntR, DtxR family [Transcription]; Pssm-ID: 440932 [Multi-domain] Cd Length: 135 Bit Score: 43.27 E-value: 2.42e-05
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| PBP2_TdcA | cd08418 | The C-terminal substrate binding domain of LysR-type transcriptional regulator TdcA, which is ... |
101-303 | 4.91e-05 | ||||||
The C-terminal substrate binding domain of LysR-type transcriptional regulator TdcA, which is involved in the degradation of L-serine and L-threonine, contains the type 2 periplasmic binding fold; TdcA, a member of the LysR family, activates the expression of the anaerobically-regulated tdcABCDEFG operon which is involved in the degradation of L-serine and L-threonine to acetate and propionate, respectively. The tdc operon is comprised of one regulatory gene tdcA and six structural genes, tdcB to tdcG. The expression of the tdc operon is affected by several transcription factors including the cAMP receptor protein (CRP), integration host factor (IHF), histone-like protein (HU), and the operon specific regulators TdcA and TcdR. TcdR is divergently transcribed from the operon and encodes a small protein that is required for efficient expression of the Escherichia coli tdc operon. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176110 [Multi-domain] Cd Length: 201 Bit Score: 43.50 E-value: 4.91e-05
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| PBP2_LTTR_like_5 | cd08426 | The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
107-192 | 3.03e-04 | ||||||
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator, contains the type 2 periplasmic binding fold; LysR-transcriptional regulators comprise the largest family of prokaryotic transcription factor. Homologs of some of LTTRs with similar domain organizations are also found in the archaea and eukaryotic organisms. The LTTRs are composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The genes controlled by the LTTRs have diverse functional roles including amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to a name a few. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176117 [Multi-domain] Cd Length: 199 Bit Score: 41.14 E-value: 3.03e-04
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| PBP2_OxyR | cd08411 | The C-terminal substrate-binding domain of the LysR-type transcriptional regulator OxyR, a ... |
102-196 | 5.72e-04 | ||||||
The C-terminal substrate-binding domain of the LysR-type transcriptional regulator OxyR, a member of the type 2 periplasmic binding fold protein superfamily; OxyR senses hydrogen peroxide and is activated through the formation of an intramolecular disulfide bond. The OxyR activation induces the transcription of genes necessary for the bacterial defense against oxidative stress. The OxyR of LysR-type transcriptional regulator family is composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The C-terminal domain also contains the redox-active cysteines that mediate the redox-dependent conformational switch. Thus, the interaction between the OxyR-tetramer and DNA is notably different between the oxidized and reduced forms. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176103 [Multi-domain] Cd Length: 200 Bit Score: 40.20 E-value: 5.72e-04
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| PRK15421 | PRK15421 | HTH-type transcriptional regulator MetR; |
11-196 | 6.18e-04 | ||||||
HTH-type transcriptional regulator MetR; Pssm-ID: 185319 [Multi-domain] Cd Length: 317 Bit Score: 40.77 E-value: 6.18e-04
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| PBP2_CysB_like | cd08413 | The C-terminal substrate domain of LysR-type transcriptional regulators CysB-like contains ... |
109-191 | 1.76e-03 | ||||||
The C-terminal substrate domain of LysR-type transcriptional regulators CysB-like contains type 2 periplasmic binding fold; CysB is a transcriptional activator of genes involved in sulfate and thiosulfate transport, sulfate reduction, and cysteine synthesis. In Escherichia coli, the regulation of transcription in response to sulfur source is attributed to two transcriptional regulators, CysB and Cbl. CysB, in association with Cbl, downregulates the expression of ssuEADCB operon which is required for the utilization of sulfur from aliphatic sulfonates, in the presence of cysteine. Also, Cbl and CysB together directly function as transcriptional activators of tauABCD genes, which are required for utilization of taurine as sulfur source for growth. Like many other members of the LTTR family, CysB is composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the PBP2 superfamily includes the substrate-binding domains from ionotropic glutamate receptors, LysR-like transcriptional regulators, and unorthodox sensor proteins involved in signal transduction. Pssm-ID: 176105 [Multi-domain] Cd Length: 198 Bit Score: 38.76 E-value: 1.76e-03
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| LysR_Sec_metab | NF040786 | selenium metabolism-associated LysR family transcriptional regulator; LysR family ... |
7-132 | 3.08e-03 | ||||||
selenium metabolism-associated LysR family transcriptional regulator; LysR family transcriptional regulators regularly appear encoded adjacent to selenecysteine incorporation proteins such as SelB. This model represents one especially well-conserved subgroup of such transcription factors from species such as Merdimonas faecis, Sellimonas intestinalis, Syntrophotalea acetylenica, and Hydrogenivirga caldilitoris. Seed alignment members were selected by proximity to selB, but not all family members are expected to have similar genomic locations. Pssm-ID: 468737 [Multi-domain] Cd Length: 298 Bit Score: 38.75 E-value: 3.08e-03
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| HTH_ARSR | cd00090 | Arsenical Resistance Operon Repressor and similar prokaryotic, metal regulated homodimeric ... |
11-69 | 3.38e-03 | ||||||
Arsenical Resistance Operon Repressor and similar prokaryotic, metal regulated homodimeric repressors. ARSR subfamily of helix-turn-helix bacterial transcription regulatory proteins (winged helix topology). Includes several proteins that appear to dissociate from DNA in the presence of metal ions. Pssm-ID: 238042 [Multi-domain] Cd Length: 78 Bit Score: 35.74 E-value: 3.38e-03
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| PBP2_LTTR_like_6 | cd08423 | The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ... |
107-191 | 3.70e-03 | ||||||
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator, contains the type 2 periplasmic binding fold; LysR-transcriptional regulators comprise the largest family of prokaryotic transcription factor. Homologs of some of LTTRs with similar domain organizations are also found in the archaea and eukaryotic organisms. The LTTRs are composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The genes controlled by the LTTRs have diverse functional roles including amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to a name a few. This substrate-binding domain shows significant homology to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Pssm-ID: 176115 [Multi-domain] Cd Length: 200 Bit Score: 37.96 E-value: 3.70e-03
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| HTH_5 | pfam01022 | Bacterial regulatory protein, arsR family; Members of this family contains a DNA binding ... |
13-45 | 3.77e-03 | ||||||
Bacterial regulatory protein, arsR family; Members of this family contains a DNA binding 'helix-turn-helix' motif. This family includes other proteins which are not included in the Prosite definition. Pssm-ID: 425993 [Multi-domain] Cd Length: 45 Bit Score: 34.73 E-value: 3.77e-03
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| HTH_ARSR | smart00418 | helix_turn_helix, Arsenical Resistance Operon Repressor; |
13-45 | 4.06e-03 | ||||||
helix_turn_helix, Arsenical Resistance Operon Repressor; Pssm-ID: 197713 [Multi-domain] Cd Length: 66 Bit Score: 35.26 E-value: 4.06e-03
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| ArsR | COG0640 | DNA-binding transcriptional regulator, ArsR family [Transcription]; |
11-45 | 6.88e-03 | ||||||
DNA-binding transcriptional regulator, ArsR family [Transcription]; Pssm-ID: 440405 [Multi-domain] Cd Length: 92 Bit Score: 35.25 E-value: 6.88e-03
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| rbcR | CHL00180 | LysR transcriptional regulator; Provisional |
8-81 | 7.84e-03 | ||||||
LysR transcriptional regulator; Provisional Pssm-ID: 177082 [Multi-domain] Cd Length: 305 Bit Score: 37.31 E-value: 7.84e-03
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