HlyD family secretion protein similar to Escherichia coli protein YhiI, Acinetobacter baumannii colistin resistance protein EmrA, and Burkholderia cepacia fusaric acid resistance protein FusE
type I secretion membrane fusion protein, HlyD family; Type I secretion is an ABC transport ...
48-420
5.80e-25
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: 105.86 E-value: 5.80e-25
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli ...
62-361
4.21e-13
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: 69.76 E-value: 4.21e-13
juxtamembrane and transmembrane (JMTM) domain found in Drosophila melanogaster neurogenic ...
45-86
1.81e-03
juxtamembrane and transmembrane (JMTM) domain found in Drosophila melanogaster neurogenic locus Notch protein (dNotch) and similar proteins; Drosophila melanogaster neurogenic locus Notch protein (dNotch) is an essential signaling protein which has a major role in many developmental processes. It functions as a receptor for membrane-bound ligands Delta and Serrate to regulate cell-fate determination. It regulates oogenesis, the differentiation of the ectoderm and the development of the central and peripheral nervous system, eye, wing disk, muscles and segmental appendages such as antennae and legs, through lateral inhibition or induction. It also regulates neuroblast self-renewal, identity and proliferation through the regulation of bHLH-O proteins; in larval brains, it is involved in the maintenance of type II neuroblast self-renewal and identity by suppressing erm expression together with pnt. It might also regulate dpn expression through the activation of the transcriptional regulator Su(H). This model corresponds to the juxtamembrane and transmembrane (JMTM) domain of dNotch, which comprises an extended coil, a transmembrane helix (TM), and a beta-strand.
Pssm-ID: 411989 Cd Length: 90 Bit Score: 37.24 E-value: 1.81e-03
type I secretion membrane fusion protein, HlyD family; Type I secretion is an ABC transport ...
48-420
5.80e-25
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: 105.86 E-value: 5.80e-25
Cation efflux system protein CusB domain 1; The cation efflux system protein CusB from E. coli ...
62-361
4.21e-13
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: 69.76 E-value: 4.21e-13
RND family efflux transporter, MFP subunit; This model represents the MFP (membrane fusion ...
72-355
2.04e-04
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: 43.07 E-value: 2.04e-04
juxtamembrane and transmembrane (JMTM) domain found in Drosophila melanogaster neurogenic ...
45-86
1.81e-03
juxtamembrane and transmembrane (JMTM) domain found in Drosophila melanogaster neurogenic locus Notch protein (dNotch) and similar proteins; Drosophila melanogaster neurogenic locus Notch protein (dNotch) is an essential signaling protein which has a major role in many developmental processes. It functions as a receptor for membrane-bound ligands Delta and Serrate to regulate cell-fate determination. It regulates oogenesis, the differentiation of the ectoderm and the development of the central and peripheral nervous system, eye, wing disk, muscles and segmental appendages such as antennae and legs, through lateral inhibition or induction. It also regulates neuroblast self-renewal, identity and proliferation through the regulation of bHLH-O proteins; in larval brains, it is involved in the maintenance of type II neuroblast self-renewal and identity by suppressing erm expression together with pnt. It might also regulate dpn expression through the activation of the transcriptional regulator Su(H). This model corresponds to the juxtamembrane and transmembrane (JMTM) domain of dNotch, which comprises an extended coil, a transmembrane helix (TM), and a beta-strand.
Pssm-ID: 411989 Cd Length: 90 Bit Score: 37.24 E-value: 1.81e-03
Barrel-sandwich domain of CusB or HlyD membrane-fusion; HlyD_D23 is the combined domains 2 and ...
79-114
4.98e-03
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: 38.26 E-value: 4.98e-03
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
129-248
7.52e-03
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.
Pssm-ID: 275316 [Multi-domain] Cd Length: 745 Bit Score: 38.85 E-value: 7.52e-03
The biotinyl-domain or biotin carboxyl carrier protein (BCCP) domain is present in all ...
84-112
8.09e-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: 8.09e-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.
Click on the triangle to view details about the feature, including a multiple sequence alignment
of your query sequence and the protein sequences used to curate the domain model,
where hash marks (#) above the aligned sequences show the location of the conserved feature residues.
The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
Click on the triangle for interactive 3D structure viewing options.
Functional characterization of the conserved domain architecture found on the query.
Click here to see more details.
This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
(labeled illustration) or all hits
(labeled illustration).
Domains are color coded according to superfamilies
to which they have been assigned. Hits with scores that pass a domain-specific threshold
(specific hits) are drawn in bright colors.
Others (non-specific hits) and
superfamily placeholders are drawn in pastel colors.
if a domain or superfamily has been annotated with functional sites (conserved features),
they are mapped to the query sequence and indicated through sets of triangles
with the same color and shade of the domain or superfamily that provides the annotation. Mouse over the colored bars or triangles to see descriptions of the domains and features.
click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
mapped to the query sequence.
Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
meet or exceed the RPS-BLAST threshold for statistical significance (default E-value cutoff of 0.01, or an E-value selected by user via the
advanced search options)
the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
(CDART).
Modify your query to search against a different database and/or use advanced search options
