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Conserved domains on  [gi|501833574|ref|WP_012651214|]
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MULTISPECIES: MerR family transcriptional regulator [Rhizobium/Agrobacterium group]

Protein Classification

MerR family transcriptional regulator( domain architecture ID 10140925)

MerR family transcriptional regulator activates transcription through protein-dependent DNA distortion and the majority of regulators in the family respond to environmental stimuli, such as oxidative stress, heavy metals or antibiotics; similar to Rhodobacter capsulatus HTH-type transcriptional regulator in himA 3'region

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
HTH_MlrA-like_sg2 cd04765
Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative ...
11-86 7.17e-43

Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative helix-turn-helix (HTH) MlrA-like transcription regulators (subgroup 2), N-terminal domain. The MlrA protein, also known as YehV, has been shown to control cell-cell aggregation by co-regulating the expression of curli and extracellular matrix production in Escherichia coli and Salmonella typhimurium. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


:

Pssm-ID: 133393  Cd Length: 99  Bit Score: 138.54  E-value: 7.17e-43
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 501833574  11 RTISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLYDHGYTIKGVQKLLKTNGNKFV 86
Cdd:cd04765    1 FSIGEVAEILGLPPHVLRYWETEFPQLKPVKRAGGRRYYRPKDVELLLLIKHLLYEKGYTIEGAKQALKEDGAAAI 76
 
Name Accession Description Interval E-value
HTH_MlrA-like_sg2 cd04765
Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative ...
11-86 7.17e-43

Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative helix-turn-helix (HTH) MlrA-like transcription regulators (subgroup 2), N-terminal domain. The MlrA protein, also known as YehV, has been shown to control cell-cell aggregation by co-regulating the expression of curli and extracellular matrix production in Escherichia coli and Salmonella typhimurium. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


Pssm-ID: 133393  Cd Length: 99  Bit Score: 138.54  E-value: 7.17e-43
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 501833574  11 RTISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLYDHGYTIKGVQKLLKTNGNKFV 86
Cdd:cd04765    1 FSIGEVAEILGLPPHVLRYWETEFPQLKPVKRAGGRRYYRPKDVELLLLIKHLLYEKGYTIEGAKQALKEDGAAAI 76
MerR_1 pfam13411
MerR HTH family regulatory protein;
12-78 1.53e-21

MerR HTH family regulatory protein;


Pssm-ID: 463870  Cd Length: 66  Bit Score: 82.99  E-value: 1.53e-21
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 501833574   12 TISEVAEDLDLPQHVLRFWETRFPqIKPMKRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLL 78
Cdd:pfam13411   2 TISELARLLGVTPRTLRYWEREGL-LPPPRTERGRRYYTDEDVERLRLIKALL-ERGLSLKEIKELL 66
SoxR COG0789
DNA-binding transcriptional regulator, MerR family [Transcription];
13-79 2.10e-15

DNA-binding transcriptional regulator, MerR family [Transcription];


Pssm-ID: 440552 [Multi-domain]  Cd Length: 100  Bit Score: 68.01  E-value: 2.10e-15
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 501833574  13 ISEVAEDLDLPQHVLRFWEtRFPQIKPMKR-GGGRRYYRPEDVDLLNGIRHlLYDHGYTIKGVQKLLK 79
Cdd:COG0789    1 IGEVARLTGVSVRTLRYYE-RIGLLPPPERtEGGYRLYSEEDVERLRFIRR-LRELGFSLAEIRELLD 66
HTH_MERR smart00422
helix_turn_helix, mercury resistance;
12-79 8.38e-09

helix_turn_helix, mercury resistance;


Pssm-ID: 197716  Cd Length: 70  Bit Score: 49.83  E-value: 8.38e-09
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 501833574    12 TISEVAEDLDLPQHVLRFWETRfPQIKPMKRG-GGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLLK 79
Cdd:smart00422   2 TIGEVAKLAGVSVRTLRYYERI-GLLPPPIRTeGGYRLYSDEDLERLRFIKRLK-ELGFSLEEIKELLE 68
PRK15043 PRK15043
HTH-type transcriptional regulator MlrA;
9-78 5.31e-06

HTH-type transcriptional regulator MlrA;


Pssm-ID: 185003 [Multi-domain]  Cd Length: 243  Bit Score: 45.31  E-value: 5.31e-06
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 501833574   9 AFRTISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLL 78
Cdd:PRK15043   2 ALYTIGEVALLCDINPVTLRAWQRRYGLLKPQRTDGGHRLFNDADIDRIREIKRWI-DNGVQVSKVKMLL 70
 
Name Accession Description Interval E-value
HTH_MlrA-like_sg2 cd04765
Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative ...
11-86 7.17e-43

Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative helix-turn-helix (HTH) MlrA-like transcription regulators (subgroup 2), N-terminal domain. The MlrA protein, also known as YehV, has been shown to control cell-cell aggregation by co-regulating the expression of curli and extracellular matrix production in Escherichia coli and Salmonella typhimurium. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


Pssm-ID: 133393  Cd Length: 99  Bit Score: 138.54  E-value: 7.17e-43
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 501833574  11 RTISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLYDHGYTIKGVQKLLKTNGNKFV 86
Cdd:cd04765    1 FSIGEVAEILGLPPHVLRYWETEFPQLKPVKRAGGRRYYRPKDVELLLLIKHLLYEKGYTIEGAKQALKEDGAAAI 76
MerR_1 pfam13411
MerR HTH family regulatory protein;
12-78 1.53e-21

MerR HTH family regulatory protein;


Pssm-ID: 463870  Cd Length: 66  Bit Score: 82.99  E-value: 1.53e-21
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 501833574   12 TISEVAEDLDLPQHVLRFWETRFPqIKPMKRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLL 78
Cdd:pfam13411   2 TISELARLLGVTPRTLRYWEREGL-LPPPRTERGRRYYTDEDVERLRLIKALL-ERGLSLKEIKELL 66
HTH_MlrA-like cd04763
Helix-Turn-Helix DNA binding domain of MlrA-like transcription regulators; Helix-turn-helix ...
12-79 3.01e-17

Helix-Turn-Helix DNA binding domain of MlrA-like transcription regulators; Helix-turn-helix (HTH) transcription regulator MlrA (merR-like regulator A) and related proteins, N-terminal domain. The MlrA protein, also known as YehV, has been shown to control cell-cell aggregation by co-regulating the expression of curli and extracellular matrix production in Escherichia coli and Salmonella typhimurium. Its close homolog, CarA from Myxococcus xanthus, is involved in activation of the carotenoid biosynthesis genes by light. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules. Many MlrA-like proteins in this group appear to lack the long dimerization helix seen in the N-terminal domains of typical MerR-like proteins.


Pssm-ID: 133391  Cd Length: 68  Bit Score: 72.18  E-value: 3.01e-17
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLYDhGYTIKGVQKLLK 79
Cdd:cd04763    2 TIGEVALLTGIKPHVLRAWEREFGLLKPQRSDGGHRLFNDADIDRILEIKRWIDN-GVQVSKVKKLLS 68
SoxR COG0789
DNA-binding transcriptional regulator, MerR family [Transcription];
13-79 2.10e-15

DNA-binding transcriptional regulator, MerR family [Transcription];


Pssm-ID: 440552 [Multi-domain]  Cd Length: 100  Bit Score: 68.01  E-value: 2.10e-15
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 501833574  13 ISEVAEDLDLPQHVLRFWEtRFPQIKPMKR-GGGRRYYRPEDVDLLNGIRHlLYDHGYTIKGVQKLLK 79
Cdd:COG0789    1 IGEVARLTGVSVRTLRYYE-RIGLLPPPERtEGGYRLYSEEDVERLRFIRR-LRELGFSLAEIRELLD 66
HTH_MlrA-like_sg1 cd04764
Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative ...
12-79 9.91e-12

Helix-Turn-Helix DNA binding domain of putative MlrA-like transcription regulators; Putative helix-turn-helix (HTH) MlrA-like transcription regulators (subgroup 1). The MlrA protein, also known as YehV, has been shown to control cell-cell aggregation by co-regulating the expression of curli and extracellular matrix production in Escherichia coli and Salmonella typhimurium. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules. Many MlrA-like proteins in this group appear to lack the long dimerization helix seen in the N-terminal domains of typical MerR-like proteins.


Pssm-ID: 133392  Cd Length: 67  Bit Score: 57.73  E-value: 9.91e-12
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRFP-QIKPMKRggGRRYYRPEDVDLLNGIRHLLYDhGYTIKGVQKLLK 79
Cdd:cd04764    2 TIKEVSEIIGVKPHTLRYYEKEFNlYIPRTEN--GRRYYTDEDIELLKKIKTLLEK-GLSIKEIKEILN 67
HTH_MlrA-CarA cd01104
Helix-Turn-Helix DNA binding domain of the transcription regulators MlrA and CarA; ...
12-79 7.14e-11

Helix-Turn-Helix DNA binding domain of the transcription regulators MlrA and CarA; Helix-turn-helix (HTH) transcription regulator MlrA (merR-like regulator A), N-terminal domain. The MlrA protein, also known as YehV, has been shown to control cell-cell aggregation by co-regulating the expression of curli and extracellular matrix production in Escherichia coli and Salmonella typhimurium. Its close homolog, CarA from Myxococcus xanthus, is involved in activation of the carotenoid biosynthesis genes by light. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules. Many MlrA- and CarA-like proteins in this group appear to lack the long dimerization helix seen in the N-terminal domains of typical MerR-like proteins.


Pssm-ID: 133379  Cd Length: 68  Bit Score: 55.32  E-value: 7.14e-11
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLLK 79
Cdd:cd01104    2 TIGAVARLTGVSPDTLRAWERRYGLPAPQRTDGGHRLYSEADVARLRLIRRLT-SEGVRISQAAALAL 68
HTH_MerR-SF cd04761
Helix-Turn-Helix DNA binding domain of transcription regulators from the MerR superfamily; ...
12-60 3.73e-10

Helix-Turn-Helix DNA binding domain of transcription regulators from the MerR superfamily; Helix-turn-helix (HTH) transcription regulator MerR superfamily, N-terminal domain. The MerR family transcription regulators have been shown to mediate responses to stress including exposure to heavy metals, drugs, or oxygen radicals in eubacterial and some archaeal species. They regulate transcription of multidrug/metal ion transporter genes and oxidative stress regulons by reconfiguring the spacer between the -35 and -10 promoter elements. A typical MerR regulator is comprised of two distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their N-terminal domains are homologous and contain a DNA-binding winged HTH motif, while the C-terminal domains are often dissimilar and bind specific coactivator molecules such as metal ions, drugs, and organic substrates.


Pssm-ID: 133389 [Multi-domain]  Cd Length: 49  Bit Score: 52.98  E-value: 3.73e-10
                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*....
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRFpQIKPMKRGGGRRYYRPEDVDLLNGI 60
Cdd:cd04761    2 TIGELAKLTGVSPSTLRYYERIG-LLSPARTEGGYRLYSDADLERLRLI 49
HTH_MerR-like cd00592
Helix-Turn-Helix DNA binding domain of MerR-like transcription regulators; Helix-turn-helix ...
12-79 1.16e-09

Helix-Turn-Helix DNA binding domain of MerR-like transcription regulators; Helix-turn-helix (HTH) MerR-like transcription regulator, N-terminal domain. The MerR family transcription regulators have been shown to mediate responses to stress including exposure to heavy metals, drugs, or oxygen radicals in eubacterial and some archaeal species. They regulate transcription of multidrug/metal ion transporter genes and oxidative stress regulons by reconfiguring the spacer between the -35 and -10 promoter elements. A typical MerR regulator is comprised of two distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their N-terminal domains are homologous and contain a DNA-binding winged HTH motif, while the C-terminal domains are often dissimilar and bind specific coactivator molecules such as metal ions, drugs, and organic substrates.


Pssm-ID: 133378 [Multi-domain]  Cd Length: 100  Bit Score: 53.02  E-value: 1.16e-09
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRfPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLLK 79
Cdd:cd00592    2 TIGEVAKLLGVSVRTLRYYEEK-GLLPPERSENGYRLYSEEDLERLRLIRRLR-ELGLSLKEIRELLD 67
HTH_MERR smart00422
helix_turn_helix, mercury resistance;
12-79 8.38e-09

helix_turn_helix, mercury resistance;


Pssm-ID: 197716  Cd Length: 70  Bit Score: 49.83  E-value: 8.38e-09
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 501833574    12 TISEVAEDLDLPQHVLRFWETRfPQIKPMKRG-GGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLLK 79
Cdd:smart00422   2 TIGEVAKLAGVSVRTLRYYERI-GLLPPPIRTeGGYRLYSDEDLERLRFIKRLK-ELGFSLEEIKELLE 68
HTH_YyaN cd01109
Helix-Turn-Helix DNA binding domain of the MerR-like transcription regulators YyaN and YraB; ...
12-63 3.27e-08

Helix-Turn-Helix DNA binding domain of the MerR-like transcription regulators YyaN and YraB; Putative helix-turn-helix (HTH) MerR-like transcription regulators of Bacillus subtilis, YyaN and YraB, and related proteins; N-terminal domain. Based on sequence similarity, these proteins are predicted to function as transcription regulators that mediate responses to stress in eubacteria. They belong to the MerR superfamily of transcription regulators that promote transcription of various stress regulons by reconfiguring the operator sequence located between the -35 and -10 promoter elements. A typical MerR regulator is comprised of distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their N-terminal domains are homologous and contain a DNA-binding winged HTH motif, while the C-terminal domains are often dissimilar and bind specific coactivator molecules such as metal ions, drugs, and organic substrates.


Pssm-ID: 133384 [Multi-domain]  Cd Length: 113  Bit Score: 49.38  E-value: 3.27e-08
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*
gi 501833574  12 TISEVAEDLDLPQHVLRFWEtR---FPQIKpmKRGGGRRYYRPEDVDLLNGIRHL 63
Cdd:cd01109    2 TIKEVAEKTGLSADTLRYYE-KeglLPPVK--RDENGIRDFTEEDLEWLEFIKCL 53
HTH_GlnR-like cd01105
Helix-Turn-Helix DNA binding domain of GlnR-like transcription regulators; Helix-turn-helix ...
12-84 4.02e-08

Helix-Turn-Helix DNA binding domain of GlnR-like transcription regulators; Helix-turn-helix (HTH) transcription regulator GlnR and related proteins, N-terminal domain. The GlnR and TnrA (also known as ScgR) proteins have been shown to regulate expression of glutamine synthetase as well as several genes involved in nitrogen metabolism. These proteins share the N-terminal DNA binding domain with other transcription regulators of the MerR superfamily that promote transcription by reconfiguring the spacer between the -35 and -10 promoter elements. A typical MerR regulator is comprised of two distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their conserved N-terminal domains contain predicted winged HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


Pssm-ID: 133380  Cd Length: 88  Bit Score: 48.77  E-value: 4.02e-08
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 501833574  12 TISEVAEDLDLPQHVLRFWETR---FPQIKpmkRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLLKTNGNK 84
Cdd:cd01105    3 GIGEVSKLTGVSPRQLRYWEEKgliKSIRS---DGGGQRKYSLADVDRLLVIKELL-DEGFTLAAAVEKLRRRRVQ 74
HTH_HspR-like_MBC cd04767
Helix-Turn-Helix DNA binding domain of putative HspR-like transcription regulators; Putative ...
13-78 9.44e-07

Helix-Turn-Helix DNA binding domain of putative HspR-like transcription regulators; Putative helix-turn-helix (HTH) transcription regulator HspR-like proteins. Unlike the characterized HspR, these proteins have a C-terminal domain with putative metal binding cysteines (MBC). Heat shock protein regulators (HspR) have been shown to regulate expression of specific regulons in response to high temperature or high osmolarity in Streptomyces and Helicobacter, respectively. These proteins share the N-terminal DNA binding domain with other transcription regulators of the MerR superfamily that promote transcription by reconfiguring the spacer between the -35 and -10 promoter elements. A typical MerR regulator is comprised of distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their conserved N-terminal domains contain predicted winged HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


Pssm-ID: 133395  Cd Length: 120  Bit Score: 45.56  E-value: 9.44e-07
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 501833574  13 ISEVAEDLDLPQHVLRFWEtRFPQIKPMKRGGgRRYYRPEDVDLLNGIRHLLYDHGYTIKGVQKLL 78
Cdd:cd04767    4 IGVVAELLNIHPETLRIWE-RHGLIKPARRNG-QRLYSNNDLKRLRFIKKLINEKGLNIAGVKQIL 67
HTH_HspR-like cd01279
Helix-Turn-Helix DNA binding domain of HspR-like transcription regulators; Helix-turn-helix ...
13-78 1.09e-06

Helix-Turn-Helix DNA binding domain of HspR-like transcription regulators; Helix-turn-helix (HTH) transcription regulator HspR and related proteins, N-terminal domain. Heat shock protein regulators (HspR) have been shown to regulate expression of specific regulons in response to high temperature or high osmolarity in Streptomyces and Helicobacter, respectively. These proteins share the N-terminal DNA binding domain with other transcription regulators of the MerR superfamily that promote transcription by reconfiguring the spacer between the -35 and -10 promoter elements. A typical MerR regulator is comprised of two distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their conserved N-terminal domains contain predicted winged HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


Pssm-ID: 133387  Cd Length: 98  Bit Score: 44.90  E-value: 1.09e-06
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 501833574  13 ISEVAEDLDLPQHVLRFWEtRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLYDHGYTIKGVQKLL 78
Cdd:cd01279    4 ISVAAELLGIHPQTLRVYD-RLGLVSPARTNGGGRRYSNNDLELLRQVQRLSQDEGFNLAGIKRII 68
PRK15043 PRK15043
HTH-type transcriptional regulator MlrA;
9-78 5.31e-06

HTH-type transcriptional regulator MlrA;


Pssm-ID: 185003 [Multi-domain]  Cd Length: 243  Bit Score: 45.31  E-value: 5.31e-06
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 501833574   9 AFRTISEVAEDLDLPQHVLRFWETRFPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLyDHGYTIKGVQKLL 78
Cdd:PRK15043   2 ALYTIGEVALLCDINPVTLRAWQRRYGLLKPQRTDGGHRLFNDADIDRIREIKRWI-DNGVQVSKVKMLL 70
MerR pfam00376
MerR family regulatory protein;
12-49 1.19e-04

MerR family regulatory protein;


Pssm-ID: 425647 [Multi-domain]  Cd Length: 38  Bit Score: 37.78  E-value: 1.19e-04
                          10        20        30
                  ....*....|....*....|....*....|....*....
gi 501833574   12 TISEVAEDLDLPQHVLRFWETRfPQIK-PMKRGGGRRYY 49
Cdd:pfam00376   1 TIGEVAKLLGVSPRTLRYYEKI-GLLPpPERTEGGYRRY 38
HTH_MerR-like_sg6 cd04781
Helix-Turn-Helix DNA binding domain of putative transcription regulators from the MerR ...
12-78 7.05e-04

Helix-Turn-Helix DNA binding domain of putative transcription regulators from the MerR superfamily; Putative helix-turn-helix (HTH) MerR-like transcription regulators (subgroup 6) with at least two conserved cysteines present in the C-terminal portion of the protein. Based on sequence similarity, these proteins are predicted to function as transcription regulators that mediate responses to stress in eubacteria. They belong to the MerR superfamily of transcription regulators that promote transcription of various stress regulons by reconfiguring the operator sequence located between the -35 and -10 promoter elements. A typical MerR regulator is comprised of two distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their N-terminal domains are homologous and contain a DNA-binding winged HTH motif, while the C-terminal domains are often dissimilar and bind specific coactivator molecules such as metal ions, drugs, and organic substrates.


Pssm-ID: 133408  Cd Length: 120  Bit Score: 37.65  E-value: 7.05e-04
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRfPQIKPMKRGGGRRYYRPEDVDLLNGIrHLLYDHGYTIKGVQKLL 78
Cdd:cd04781    2 DIAEVARQSGLPASTLRYYEEK-GLIASIGRRGLRRQYDPQVLDRLALI-ALGRAAGFSLDEIQAML 66
HTH_HMRTR cd04770
Helix-Turn-Helix DNA binding domain of Heavy Metal Resistance transcription regulators; ...
12-62 7.56e-03

Helix-Turn-Helix DNA binding domain of Heavy Metal Resistance transcription regulators; Helix-turn-helix (HTH) heavy metal resistance transcription regulators (HMRTR): MerR1 (mercury), CueR (copper), CadR (cadmium), PbrR (lead), ZntR (zinc), and other related proteins. These transcription regulators mediate responses to heavy metal stress in eubacteria. They belong to the MerR superfamily of transcription regulators that promote transcription of various stress regulons by reconfiguring the operator sequence located between the -35 and -10 promoter elements. A typical MerR regulator is comprised of two distinct domains that harbor the regulatory (effector-binding) site and the active (DNA-binding) site. Their N-terminal domains are homologous and contain a DNA-binding winged HTH motif, while the C-terminal domains are often dissimilar and bind specific coactivator molecules such as metal ions, drugs, and organic substrates.


Pssm-ID: 133398 [Multi-domain]  Cd Length: 123  Bit Score: 34.85  E-value: 7.56e-03
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|...
gi 501833574  12 TISEVAEDLDLPQHVLRFWETR--FPqiKPMKRGGGRRYYRPEDVDLLNGIRH 62
Cdd:cd04770    2 KIGELAKAAGVSPDTIRYYERIglLP--PPQRSENGYRLYGEADLARLRFIRR 52
HTH_YfmP cd04774
Helix-Turn-Helix DNA binding domain of the YfmP transcription regulator; Helix-turn-helix (HTH) ...
12-80 8.84e-03

Helix-Turn-Helix DNA binding domain of the YfmP transcription regulator; Helix-turn-helix (HTH) transcription regulator, YfmP, and related proteins; N-terminal domain. YfmP regulates the multidrug efflux protein, YfmO, and indirectly regulates the expression of the Bacillus subtilis copZA operon encoding a metallochaperone, CopZ, and a CPx-type ATPase efflux protein, CopA. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted winged HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules.


Pssm-ID: 133401 [Multi-domain]  Cd Length: 96  Bit Score: 34.41  E-value: 8.84e-03
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 501833574  12 TISEVAEDLDLPQHVLRFWETRfPQIKPMKRGGGRRYYRPEDVDLLNGIRHLLYDHGYTIKGVQKLLKT 80
Cdd:cd04774    2 KVDEVAKRLGLTKRTLKYYEEI-GLVSPERSEGRYRLYSEEDLKRLERILRLREVLGFSLQEVTHFLER 69
HTH_TioE_rpt2 cd04773
Second Helix-Turn-Helix DNA binding domain of the regulatory protein TioE; Putative ...
11-80 9.23e-03

Second Helix-Turn-Helix DNA binding domain of the regulatory protein TioE; Putative helix-turn-helix (HTH) regulatory protein, TioE, and related proteins. TioE is part of the thiocoraline gene cluster, which is involved in the biosynthesis of the antitumor thiocoraline from the marine actinomycete, Micromonospora. These proteins share the N-terminal DNA binding domain with other transcription regulators of the MerR superfamily that promote transcription by reconfiguring the spacer between the -35 and -10 promoter elements. Proteins in this family are unique within the MerR superfamily in that they are composed of just two adjacent MerR-like N-terminal domains; this CD mainly contains the C-terminal or second repeat (rpt2) of these tandem MerR-like domain proteins.


Pssm-ID: 133400  Cd Length: 108  Bit Score: 34.26  E-value: 9.23e-03
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 501833574  11 RTISEVAEDLDLPQHVLRFWEtRFPQIKPMK-RGGGRRYYRPEDV-DLLngIRHLLYDHGYTIKGVQKLLKT 80
Cdd:cd04773    1 MTIGELAHLLGVPPSTLRHWE-KEGLLSPDRePETGYRVYDPSDVrDAR--LIHLLRRGGYLLEQIATVVEQ 69
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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