chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
187-400
1.22e-06
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: 51.21 E-value: 1.22e-06
family of the cytolysin A (ClyA) family alpha pore-forming toxins (alpha-PFT) including ...
239-385
4.89e-04
family of the cytolysin A (ClyA) family alpha pore-forming toxins (alpha-PFT) including Bacillus cereus HblB, Aeromonas hydrophila AhlB, Bacillus thuringiensis Cry6Aa and similar proteins; This family belongs to the ClyA family of alpha-PFT bacterial toxins. PFTs form the major group of virulence factors in many pathogenic bacteria and in general are critical components of the molecular offensive and defensive machinery of cells in all kingdoms of life. Bacterial PFTs facilitate the takeover of host resources by puncturing holes in the membrane. PFTs can be classified as alpha-PFTs and beta-PFTs depending on the secondary structures of their membrane component. Alpha-PFTs use a ring of amphipathic helices while beta-PFTs use a beta-barrel to construct the pore. Members of this family include the toxins: Bacillus cereus hemolysin binding component B (HblB or HBL-B) of the diarrheal enterotoxin hemolysin BL, Aeromonas hydrophila hemolytic (Ahl) component B (AhlB) of the tripartite AhlABC toxin, Vibrio cholerae cytotoxin motility associated killing factor A (MakA) cytotoxin, Xenorhabdus nematophila alpha-xenorhabdolysin (XaxA), Bacillus thuringiensis crystal 6Aa (Cry6Aa) parasporal crystal (Cry) toxin, and Bacillus cereus non-hemolytic enterotoxin (Nhe) component A (NheA) of the non-hemolytic enterotoxin Nhe, which, despite its name, is hemolytic, among others. In solution, ClyA proteins have an elongated, almost entirely alpha-helical structure, except for a short hydrophobic beta-hairpin known as the beta-tongue. Pore formation by ClyA requires circular oligomerization of the toxin by a sequential mechanism. This, in turn, concentrates the amphipathic helices in the center of the ring-like structure, forming a helical barrel that inserts into the membrane by a wedge-like mechanism. Compared with ClyA, NheA is almost entirely alpha-helical with an enlarged "head" domain, and an enlarged beta-tongue; it has been proposed that NheA could even form beta-barrel pores. Alpha-PFTs with similar structures are increasingly being found in eukaryotes, in particular as components of the immune systems of animals. This family may be distantly related to Escherichia coli alpha-PFT hemolysin E (HlyE, also known as ClyA or SheA).
Pssm-ID: 439149 [Multi-domain] Cd Length: 224 Bit Score: 41.63 E-value: 4.89e-04
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
187-400
1.22e-06
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: 51.21 E-value: 1.22e-06
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
140-384
2.11e-04
chromosome segregation protein SMC, primarily archaeal 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. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]
Pssm-ID: 274009 [Multi-domain] Cd Length: 1164 Bit Score: 43.90 E-value: 2.11e-04
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
255-443
2.59e-04
chromosome segregation protein SMC, primarily archaeal 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. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]
Pssm-ID: 274009 [Multi-domain] Cd Length: 1164 Bit Score: 43.52 E-value: 2.59e-04
family of the cytolysin A (ClyA) family alpha pore-forming toxins (alpha-PFT) including ...
239-385
4.89e-04
family of the cytolysin A (ClyA) family alpha pore-forming toxins (alpha-PFT) including Bacillus cereus HblB, Aeromonas hydrophila AhlB, Bacillus thuringiensis Cry6Aa and similar proteins; This family belongs to the ClyA family of alpha-PFT bacterial toxins. PFTs form the major group of virulence factors in many pathogenic bacteria and in general are critical components of the molecular offensive and defensive machinery of cells in all kingdoms of life. Bacterial PFTs facilitate the takeover of host resources by puncturing holes in the membrane. PFTs can be classified as alpha-PFTs and beta-PFTs depending on the secondary structures of their membrane component. Alpha-PFTs use a ring of amphipathic helices while beta-PFTs use a beta-barrel to construct the pore. Members of this family include the toxins: Bacillus cereus hemolysin binding component B (HblB or HBL-B) of the diarrheal enterotoxin hemolysin BL, Aeromonas hydrophila hemolytic (Ahl) component B (AhlB) of the tripartite AhlABC toxin, Vibrio cholerae cytotoxin motility associated killing factor A (MakA) cytotoxin, Xenorhabdus nematophila alpha-xenorhabdolysin (XaxA), Bacillus thuringiensis crystal 6Aa (Cry6Aa) parasporal crystal (Cry) toxin, and Bacillus cereus non-hemolytic enterotoxin (Nhe) component A (NheA) of the non-hemolytic enterotoxin Nhe, which, despite its name, is hemolytic, among others. In solution, ClyA proteins have an elongated, almost entirely alpha-helical structure, except for a short hydrophobic beta-hairpin known as the beta-tongue. Pore formation by ClyA requires circular oligomerization of the toxin by a sequential mechanism. This, in turn, concentrates the amphipathic helices in the center of the ring-like structure, forming a helical barrel that inserts into the membrane by a wedge-like mechanism. Compared with ClyA, NheA is almost entirely alpha-helical with an enlarged "head" domain, and an enlarged beta-tongue; it has been proposed that NheA could even form beta-barrel pores. Alpha-PFTs with similar structures are increasingly being found in eukaryotes, in particular as components of the immune systems of animals. This family may be distantly related to Escherichia coli alpha-PFT hemolysin E (HlyE, also known as ClyA or SheA).
Pssm-ID: 439149 [Multi-domain] Cd Length: 224 Bit Score: 41.63 E-value: 4.89e-04
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
141-373
1.44e-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: 1.44e-03
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
193-375
5.19e-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: 39.65 E-value: 5.19e-03
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
87-382
7.51e-03
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.
Pssm-ID: 114219 [Multi-domain] Cd Length: 787 Bit Score: 38.93 E-value: 7.51e-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
