putative HlyD family type I secretion protein similar to Escherichia coli hemolysin secretion protein D, an inner membrane protein involved in the transport of hemolysin A
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli ...
54-469
3.43e-108
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli can be divided into four different domains, the first three domains of the protein are mostly beta-strands and the fourth forms an all alpha-helical domain. This entry represents the first beta-domain (domain 1) of CusB and it is formed by the N and C-terminal ends of the polypeptide (residues 89-102 and 324-385). CusB is part of the copper-transporting efflux system CusCFBA. This domain can also be found in other membrane-fusion proteins, such as HlyD, MdtN, MdtE and AaeA. HlyD is a component of the prototypical alpha-haemolysin (HlyA) bacterial type I secretion system, along with the other components HlyB and TolC. HlyD is anchored in the cytoplasmic membrane by a single transmembrane domain and has a large periplasmic domain within the carboxy-terminal 100 amino acids, HlyB and HlyD form a stable complex that binds the recombinant protein bearing a C-terminal HlyA signal sequence and ATP in the cytoplasm. HlyD, HlyB and TolC combine to form the three-component ABC transporter complex that forms a trans-membrane channel or pore through which HlyA can be transferred directly to the extracellular medium. Cutinase has been shown to be transported effectively through this pore.
The actual alignment was detected with superfamily member TIGR01843:
Pssm-ID: 481212 [Multi-domain] Cd Length: 423 Bit Score: 326.97 E-value: 3.43e-108
type I secretion membrane fusion protein, HlyD family; Type I secretion is an ABC transport ...
54-469
3.43e-108
type I secretion membrane fusion protein, HlyD family; Type I secretion is an ABC transport process that exports proteins, without cleavage of any signal sequence, from the cytosol to extracellular medium across both inner and outer membranes. The secretion signal is found in the C-terminus of the transported protein. This model represents the adaptor protein between the ATP-binding cassette (ABC) protein of the inner membrane and the outer membrane protein, and is called the membrane fusion protein. This model selects a subfamily closely related to HlyD; it is defined narrowly and excludes, for example, colicin V secretion protein CvaA and multidrug efflux proteins. [Protein fate, Protein and peptide secretion and trafficking]
Pssm-ID: 130902 [Multi-domain] Cd Length: 423 Bit Score: 326.97 E-value: 3.43e-108
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli ...
87-417
4.35e-38
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli can be divided into four different domains, the first three domains of the protein are mostly beta-strands and the fourth forms an all alpha-helical domain. This entry represents the first beta-domain (domain 1) of CusB and it is formed by the N and C-terminal ends of the polypeptide (residues 89-102 and 324-385). CusB is part of the copper-transporting efflux system CusCFBA. This domain can also be found in other membrane-fusion proteins, such as HlyD, MdtN, MdtE and AaeA. HlyD is a component of the prototypical alpha-haemolysin (HlyA) bacterial type I secretion system, along with the other components HlyB and TolC. HlyD is anchored in the cytoplasmic membrane by a single transmembrane domain and has a large periplasmic domain within the carboxy-terminal 100 amino acids, HlyB and HlyD form a stable complex that binds the recombinant protein bearing a C-terminal HlyA signal sequence and ATP in the cytoplasm. HlyD, HlyB and TolC combine to form the three-component ABC transporter complex that forms a trans-membrane channel or pore through which HlyA can be transferred directly to the extracellular medium. Cutinase has been shown to be transported effectively through this pore.
Pssm-ID: 425733 [Multi-domain] Cd Length: 322 Bit Score: 141.02 E-value: 4.35e-38
The biotinyl-domain or biotin carboxyl carrier protein (BCCP) domain is present in all ...
105-127
9.95e-03
The biotinyl-domain or biotin carboxyl carrier protein (BCCP) domain is present in all biotin-dependent enzymes, such as acetyl-CoA carboxylase, pyruvate carboxylase, propionyl-CoA carboxylase, methylcrotonyl-CoA carboxylase, geranyl-CoA carboxylase, oxaloacetate decarboxylase, methylmalonyl-CoA decarboxylase, transcarboxylase and urea amidolyase. This domain functions in transferring CO2 from one subsite to another, allowing carboxylation, decarboxylation, or transcarboxylation. During this process, biotin is covalently attached to a specific lysine.
Pssm-ID: 133459 [Multi-domain] Cd Length: 67 Bit Score: 34.70 E-value: 9.95e-03
type I secretion membrane fusion protein, HlyD family; Type I secretion is an ABC transport ...
54-469
3.43e-108
type I secretion membrane fusion protein, HlyD family; Type I secretion is an ABC transport process that exports proteins, without cleavage of any signal sequence, from the cytosol to extracellular medium across both inner and outer membranes. The secretion signal is found in the C-terminus of the transported protein. This model represents the adaptor protein between the ATP-binding cassette (ABC) protein of the inner membrane and the outer membrane protein, and is called the membrane fusion protein. This model selects a subfamily closely related to HlyD; it is defined narrowly and excludes, for example, colicin V secretion protein CvaA and multidrug efflux proteins. [Protein fate, Protein and peptide secretion and trafficking]
Pssm-ID: 130902 [Multi-domain] Cd Length: 423 Bit Score: 326.97 E-value: 3.43e-108
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli ...
87-417
4.35e-38
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli can be divided into four different domains, the first three domains of the protein are mostly beta-strands and the fourth forms an all alpha-helical domain. This entry represents the first beta-domain (domain 1) of CusB and it is formed by the N and C-terminal ends of the polypeptide (residues 89-102 and 324-385). CusB is part of the copper-transporting efflux system CusCFBA. This domain can also be found in other membrane-fusion proteins, such as HlyD, MdtN, MdtE and AaeA. HlyD is a component of the prototypical alpha-haemolysin (HlyA) bacterial type I secretion system, along with the other components HlyB and TolC. HlyD is anchored in the cytoplasmic membrane by a single transmembrane domain and has a large periplasmic domain within the carboxy-terminal 100 amino acids, HlyB and HlyD form a stable complex that binds the recombinant protein bearing a C-terminal HlyA signal sequence and ATP in the cytoplasm. HlyD, HlyB and TolC combine to form the three-component ABC transporter complex that forms a trans-membrane channel or pore through which HlyA can be transferred directly to the extracellular medium. Cutinase has been shown to be transported effectively through this pore.
Pssm-ID: 425733 [Multi-domain] Cd Length: 322 Bit Score: 141.02 E-value: 4.35e-38
NHLM bacteriocin system secretion protein; Members of this protein family are homologs of the ...
49-379
1.15e-11
NHLM bacteriocin system secretion protein; Members of this protein family are homologs of the HlyD membrane fusion protein of type I secretion systems. Their occurrence in prokaryotic genomes is associated with the occurrence of a novel class of microcin (small bacteriocins) with a leader peptide region related to nitrile hydratase. We designate the class of bacteriocin as Nitrile Hydratase Leader Microcin, or NHLM. This family, therefore, is designated as NHLM bacteriocin system secretion protein. Some but not all NHLM-class putative microcins belong to the TOMM (thiazole/oxazole modified microcin) class as assessed by the presence of the scaffolding protein and/or cyclodehydratase in the same gene clusters. [Transport and binding proteins, Amino acids, peptides and amines, Cellular processes, Biosynthesis of natural products]
Pssm-ID: 274787 [Multi-domain] Cd Length: 421 Bit Score: 66.41 E-value: 1.15e-11
RND family efflux transporter, MFP subunit; This model represents the MFP (membrane fusion ...
98-291
2.14e-08
RND family efflux transporter, MFP subunit; This model represents the MFP (membrane fusion protein) component of the RND family of transporters. RND refers to Resistance, Nodulation, and cell Division. It is, in part, a subfamily of pfam00529 (Pfam release 7.5) but hits substantial numbers of proteins missed by that model. The related HlyD secretion protein, for which pfam00529 is named, is outside the scope of this model. Attributed functions imply outward transport. These functions include nodulation, acriflavin resistance, heavy metal efflux, and multidrug resistance proteins. Most members of this family are found in Gram-negative bacteria. The proposed function of MFP proteins is to bring the inner and outer membranes together and enable transport to the outside of the outer membrane. Note, however, that a few members of this family are found in Gram-positive bacteria, where there is no outer membrane. [Transport and binding proteins, Unknown substrate]
Pssm-ID: 273776 [Multi-domain] Cd Length: 322 Bit Score: 55.78 E-value: 2.14e-08
ABC exporter membrane fusion protein, DevB family; Members of this protein family are found ...
87-405
2.91e-08
ABC exporter membrane fusion protein, DevB family; Members of this protein family are found mostly in the Cyanobacteria, but also in the Planctomycetes. DevB from Anabaena sp. strain PCC 7120 is partially characterized as a membrane fusion protein of the DevBCA ABC exporter, probably a glycolipid exporter, required for heterocyst formation. Most Cyanobacteria have one member only, but Nostoc sp. PCC 7120 has seven members.
Pssm-ID: 213754 [Multi-domain] Cd Length: 327 Bit Score: 55.22 E-value: 2.91e-08
Barrel-sandwich domain of CusB or HlyD membrane-fusion; HlyD_D23 is the combined domains 2 and ...
264-439
8.84e-05
Barrel-sandwich domain of CusB or HlyD membrane-fusion; HlyD_D23 is the combined domains 2 and 3 of the membrane-fusion proteins CusB and HlyD, which forms a barrel-sandwich. CusB and HlyD proteins are membrane fusion proteins of the CusCFBA copper efflux system in E.coli and related bacteria. The whole molecule hinges between D2 and D3. Efflux systems of this resistance-nodulation-division group - RND - have been developed to excrete poisonous metal ions, and in E.coli the only one that deals with silver and copper is the CusA transporter. The transporter CusA works in conjunction with a periplasmic component that is a membrane fusion protein, eg CusB, and an outer-membrane channel component CusC in a CusABC complex driven by import of protons.
Pssm-ID: 435440 [Multi-domain] Cd Length: 214 Bit Score: 43.65 E-value: 8.84e-05
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
181-318
1.50e-03
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]
Pssm-ID: 274008 [Multi-domain] Cd Length: 1179 Bit Score: 41.20 E-value: 1.50e-03
The biotinyl-domain or biotin carboxyl carrier protein (BCCP) domain is present in all ...
105-127
9.95e-03
The biotinyl-domain or biotin carboxyl carrier protein (BCCP) domain is present in all biotin-dependent enzymes, such as acetyl-CoA carboxylase, pyruvate carboxylase, propionyl-CoA carboxylase, methylcrotonyl-CoA carboxylase, geranyl-CoA carboxylase, oxaloacetate decarboxylase, methylmalonyl-CoA decarboxylase, transcarboxylase and urea amidolyase. This domain functions in transferring CO2 from one subsite to another, allowing carboxylation, decarboxylation, or transcarboxylation. During this process, biotin is covalently attached to a specific lysine.
Pssm-ID: 133459 [Multi-domain] Cd Length: 67 Bit Score: 34.70 E-value: 9.95e-03
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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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