Cyclases involved in the biosynthesis of lantibiotics, and similar proteins; LanC is the ...
120-648
6.69e-156
Cyclases involved in the biosynthesis of lantibiotics, and similar proteins; LanC is the cyclase enzyme of the lanthionine synthetase. Lanthionine is a lantibiotic, a unique class of peptide antibiotics. They are ribosomally synthesized as a precursor peptide and then post-translationally modified to contain thioether cross-links called lanthionines (Lans) or methyllanthionines (MeLans), in addition to 2,3-didehydroalanine (Dha) and (Z)-2,3-didehydrobutyrine (Dhb). These unusual amino acids are introduced by the dehydration of serine and threonine residues, followed by thioether formation via addition of cysteine thiols, catalysed by LanB and LanC or LanM. LanC, the cyclase component, is a zinc metalloprotein, whose bound metal has been proposed to activate the thiol substrate for nucleophilic addition. A related domain is also present in LanM and other pro- and eukaryotic proteins with poorly characterized functions.
The actual alignment was detected with superfamily member pfam07944:
Pssm-ID: 471159 [Multi-domain] Cd Length: 503 Bit Score: 466.40 E-value: 6.69e-156
Arabinose-binding domain (ABD), beta-trefoil fold, found in the ABFB family; The ABFB family ...
755-872
1.59e-06
Arabinose-binding domain (ABD), beta-trefoil fold, found in the ABFB family; The ABFB family includes alpha-L-arabinofuranosidase B (ABF B)-like proteins and otogelin-like proteins. Alpha-L-arabinofuranosidase (EC 3.2.1.55), also called ABF, or non-reducing end alpha-L-arabinofuranosidase, or arabinofuranosidase, or arabinosidase, is involved in the degradation of arabinoxylan, a major component of plant hemicellulose. It can hydrolyze 1,5-, 1,3- and 1,2-alpha-linkages not only in L-arabinofuranosyl oligosaccharides, but also in polysaccharides containing terminal non-reducing L-arabinofuranoses in side chains, like L-arabinan, arabinogalactan and arabinoxylan. ABF belongs to the glycosyl hydrolase 54 family. Hungateiclostridium thermocellum anti-sigma-I factor RsgI5 shows high sequence similarity with ABF B. It negatively regulates SigI5 activity through direct interaction. The OTOG subfamily includes otogelin (OTOG) and otogelin-like protein (OTOGL). OTOG is a glycoprotein specific to acellular membranes of the inner ear. It may be required for the anchoring of otoconial membranes and cupula to the underlying neuroepithelia in the vestibule. OTOG may be involved in the organization and/or stabilization of the fibrillar network that compose the tectorial membrane in the cochlea. OTOGL is a mucin glycoprotein that is a component of the tectorial membrane. It acts as a gel-forming mucin that forms high-molecular-weight complexes and is glycosylated through mucin-type O-glycosylation. Mutations in OTOG or OTOGL genes may cause hearing loss. Members of the ABFB family contain an ABD with a beta-trefoil fold, which is characterized by 12 beta strands folded into three similar trefoil subdomains (alpha, beta, and gamma) associated to give an overall structure with pseudo-3-fold symmetry. The ABD binds two arabinose molecules in the beta and gamma subdomains.
The actual alignment was detected with superfamily member cd23265:
Pssm-ID: 483964 Cd Length: 135 Bit Score: 48.43 E-value: 1.59e-06
Beta-L-arabinofuranosidase, GH127; One member of this family, from Bidobacterium longicum, ...
120-648
6.69e-156
Beta-L-arabinofuranosidase, GH127; One member of this family, from Bidobacterium longicum, UniProtKB:E8MGH8, has been characterized as an unusual beta-L-arabinofuranosidase enzyme, EC:3.2.1.185. It rleases l-arabinose from the l-arabinofuranose (Araf)-beta1,2-Araf disaccharide and also transglycosylates 1-alkanols with retention of the anomeric configuration. Terminal beta-l-arabinofuranosyl residues have been found in arabinogalactan proteins from a mumber of different plantt species. beta-l-Arabinofuranosyl linkages with 1-4 arabinofuranosides are also found in the sugar chains of extensin and solanaceous lectins, hydroxyproline (Hyp)2-rich glycoproteins that are widely observed in plant cell wall fractions. The critical residue for catalytic activity is Glu-338, in a ET/SCAS sequence context.
Pssm-ID: 400342 [Multi-domain] Cd Length: 503 Bit Score: 466.40 E-value: 6.69e-156
Arabinose-binding domain (ABD), beta-trefoil fold, found in the ABFB family; The ABFB family ...
755-872
1.59e-06
Arabinose-binding domain (ABD), beta-trefoil fold, found in the ABFB family; The ABFB family includes alpha-L-arabinofuranosidase B (ABF B)-like proteins and otogelin-like proteins. Alpha-L-arabinofuranosidase (EC 3.2.1.55), also called ABF, or non-reducing end alpha-L-arabinofuranosidase, or arabinofuranosidase, or arabinosidase, is involved in the degradation of arabinoxylan, a major component of plant hemicellulose. It can hydrolyze 1,5-, 1,3- and 1,2-alpha-linkages not only in L-arabinofuranosyl oligosaccharides, but also in polysaccharides containing terminal non-reducing L-arabinofuranoses in side chains, like L-arabinan, arabinogalactan and arabinoxylan. ABF belongs to the glycosyl hydrolase 54 family. Hungateiclostridium thermocellum anti-sigma-I factor RsgI5 shows high sequence similarity with ABF B. It negatively regulates SigI5 activity through direct interaction. The OTOG subfamily includes otogelin (OTOG) and otogelin-like protein (OTOGL). OTOG is a glycoprotein specific to acellular membranes of the inner ear. It may be required for the anchoring of otoconial membranes and cupula to the underlying neuroepithelia in the vestibule. OTOG may be involved in the organization and/or stabilization of the fibrillar network that compose the tectorial membrane in the cochlea. OTOGL is a mucin glycoprotein that is a component of the tectorial membrane. It acts as a gel-forming mucin that forms high-molecular-weight complexes and is glycosylated through mucin-type O-glycosylation. Mutations in OTOG or OTOGL genes may cause hearing loss. Members of the ABFB family contain an ABD with a beta-trefoil fold, which is characterized by 12 beta strands folded into three similar trefoil subdomains (alpha, beta, and gamma) associated to give an overall structure with pseudo-3-fold symmetry. The ABD binds two arabinose molecules in the beta and gamma subdomains.
Pssm-ID: 467807 Cd Length: 135 Bit Score: 48.43 E-value: 1.59e-06
Beta-L-arabinofuranosidase, GH127; One member of this family, from Bidobacterium longicum, ...
120-648
6.69e-156
Beta-L-arabinofuranosidase, GH127; One member of this family, from Bidobacterium longicum, UniProtKB:E8MGH8, has been characterized as an unusual beta-L-arabinofuranosidase enzyme, EC:3.2.1.185. It rleases l-arabinose from the l-arabinofuranose (Araf)-beta1,2-Araf disaccharide and also transglycosylates 1-alkanols with retention of the anomeric configuration. Terminal beta-l-arabinofuranosyl residues have been found in arabinogalactan proteins from a mumber of different plantt species. beta-l-Arabinofuranosyl linkages with 1-4 arabinofuranosides are also found in the sugar chains of extensin and solanaceous lectins, hydroxyproline (Hyp)2-rich glycoproteins that are widely observed in plant cell wall fractions. The critical residue for catalytic activity is Glu-338, in a ET/SCAS sequence context.
Pssm-ID: 400342 [Multi-domain] Cd Length: 503 Bit Score: 466.40 E-value: 6.69e-156
Arabinose-binding domain (ABD), beta-trefoil fold, found in the ABFB family; The ABFB family ...
755-872
1.59e-06
Arabinose-binding domain (ABD), beta-trefoil fold, found in the ABFB family; The ABFB family includes alpha-L-arabinofuranosidase B (ABF B)-like proteins and otogelin-like proteins. Alpha-L-arabinofuranosidase (EC 3.2.1.55), also called ABF, or non-reducing end alpha-L-arabinofuranosidase, or arabinofuranosidase, or arabinosidase, is involved in the degradation of arabinoxylan, a major component of plant hemicellulose. It can hydrolyze 1,5-, 1,3- and 1,2-alpha-linkages not only in L-arabinofuranosyl oligosaccharides, but also in polysaccharides containing terminal non-reducing L-arabinofuranoses in side chains, like L-arabinan, arabinogalactan and arabinoxylan. ABF belongs to the glycosyl hydrolase 54 family. Hungateiclostridium thermocellum anti-sigma-I factor RsgI5 shows high sequence similarity with ABF B. It negatively regulates SigI5 activity through direct interaction. The OTOG subfamily includes otogelin (OTOG) and otogelin-like protein (OTOGL). OTOG is a glycoprotein specific to acellular membranes of the inner ear. It may be required for the anchoring of otoconial membranes and cupula to the underlying neuroepithelia in the vestibule. OTOG may be involved in the organization and/or stabilization of the fibrillar network that compose the tectorial membrane in the cochlea. OTOGL is a mucin glycoprotein that is a component of the tectorial membrane. It acts as a gel-forming mucin that forms high-molecular-weight complexes and is glycosylated through mucin-type O-glycosylation. Mutations in OTOG or OTOGL genes may cause hearing loss. Members of the ABFB family contain an ABD with a beta-trefoil fold, which is characterized by 12 beta strands folded into three similar trefoil subdomains (alpha, beta, and gamma) associated to give an overall structure with pseudo-3-fold symmetry. The ABD binds two arabinose molecules in the beta and gamma subdomains.
Pssm-ID: 467807 Cd Length: 135 Bit Score: 48.43 E-value: 1.59e-06
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
