UDP-N-acetyl-D-glucosamine 2-epimerase, UDP-hydrolysing; This family of enzymes catalyzes the ...
3-358
3.88e-161
UDP-N-acetyl-D-glucosamine 2-epimerase, UDP-hydrolysing; This family of enzymes catalyzes the combined epimerization and UDP-hydrolysis of UDP-N-acetylglucosamine to N-acetylmannosamine. This is in contrast to the related enzyme WecB (TIGR00236) which retains the UDP moiety. NeuC acts in concert with NeuA and NeuB to synthesize CMP-N5-acetyl-neuraminate.
:
Pssm-ID: 274654 Cd Length: 364 Bit Score: 456.22 E-value: 3.88e-161
UDP-N-acetyl-D-glucosamine 2-epimerase, UDP-hydrolysing; This family of enzymes catalyzes the ...
3-358
3.88e-161
UDP-N-acetyl-D-glucosamine 2-epimerase, UDP-hydrolysing; This family of enzymes catalyzes the combined epimerization and UDP-hydrolysis of UDP-N-acetylglucosamine to N-acetylmannosamine. This is in contrast to the related enzyme WecB (TIGR00236) which retains the UDP moiety. NeuC acts in concert with NeuA and NeuB to synthesize CMP-N5-acetyl-neuraminate.
Pssm-ID: 274654 Cd Length: 364 Bit Score: 456.22 E-value: 3.88e-161
UDP-N-acetylglucosamine 2-epimerase and similar proteins; Bacterial members of the ...
3-358
3.15e-91
UDP-N-acetylglucosamine 2-epimerase and similar proteins; Bacterial members of the UDP-N-Acetylglucosamine (GlcNAc) 2-Epimerase family (EC 5.1.3.14) are known to catalyze the reversible interconversion of UDP-GlcNAc and UDP-N-acetylmannosamine (UDP-ManNAc). The enzyme serves to produce an activated form of ManNAc residues (UDP-ManNAc) for use in the biosynthesis of a variety of cell surface polysaccharides; The mammalian enzyme is bifunctional, catalyzing both the inversion of stereochemistry at C-2 and the hydrolysis of the UDP-sugar linkage to generate free ManNAc. It also catalyzes the phosphorylation of ManNAc to generate ManNAc 6-phosphate, a precursor to salic acids. In mammals, sialic acids are found at the termini of oligosaccharides in a large variety of cell surface glycoconjugates and are key mediators of cell-cell recognition events. Mutations in human members of this family have been associated with Sialuria, a rare disease caused by the disorders of sialic acid metabolism. This family belongs to the GT-B structural superfamily of glycoslytransferases, which have characteristic N- and C-terminal domains each containing a typical Rossmann fold. The two domains have high structural homology despite minimal sequence homology. The large cleft that separates the two domains includes the catalytic center and permits a high degree of flexibility.
Pssm-ID: 340819 [Multi-domain] Cd Length: 365 Bit Score: 278.32 E-value: 3.15e-91
UDP-N-acetylglucosamine 2-epimerase; This family consists of UDP-N-acetylglucosamine ...
24-358
9.30e-70
UDP-N-acetylglucosamine 2-epimerase; This family consists of UDP-N-acetylglucosamine 2-epimerases EC:5.1.3.14 this enzyme catalyzes the production of UDP-ManNAc from UDP-GlcNAc. Note that some of the enzymes is this family are bifunctional such as Swiss:O35826 and Swiss:Q9Z0P6 in this instance Pfam matches only the N-terminal half of the protein suggesting that the additional C-terminal part (when compared to mono-functional members of this family) is responsible for the UPD-N-acetylmannosamine kinase activity of these enzymes. This hypothesis is further supported by the assumption that the C-terminal part of Swiss:O35826 is the kinase domain.
Pssm-ID: 426733 [Multi-domain] Cd Length: 336 Bit Score: 222.02 E-value: 9.30e-70
UDP-N-acetyl-D-glucosamine 2-epimerase, UDP-hydrolysing; This family of enzymes catalyzes the ...
3-358
3.88e-161
UDP-N-acetyl-D-glucosamine 2-epimerase, UDP-hydrolysing; This family of enzymes catalyzes the combined epimerization and UDP-hydrolysis of UDP-N-acetylglucosamine to N-acetylmannosamine. This is in contrast to the related enzyme WecB (TIGR00236) which retains the UDP moiety. NeuC acts in concert with NeuA and NeuB to synthesize CMP-N5-acetyl-neuraminate.
Pssm-ID: 274654 Cd Length: 364 Bit Score: 456.22 E-value: 3.88e-161
UDP-N-acetylglucosamine 2-epimerase and similar proteins; Bacterial members of the ...
3-358
3.15e-91
UDP-N-acetylglucosamine 2-epimerase and similar proteins; Bacterial members of the UDP-N-Acetylglucosamine (GlcNAc) 2-Epimerase family (EC 5.1.3.14) are known to catalyze the reversible interconversion of UDP-GlcNAc and UDP-N-acetylmannosamine (UDP-ManNAc). The enzyme serves to produce an activated form of ManNAc residues (UDP-ManNAc) for use in the biosynthesis of a variety of cell surface polysaccharides; The mammalian enzyme is bifunctional, catalyzing both the inversion of stereochemistry at C-2 and the hydrolysis of the UDP-sugar linkage to generate free ManNAc. It also catalyzes the phosphorylation of ManNAc to generate ManNAc 6-phosphate, a precursor to salic acids. In mammals, sialic acids are found at the termini of oligosaccharides in a large variety of cell surface glycoconjugates and are key mediators of cell-cell recognition events. Mutations in human members of this family have been associated with Sialuria, a rare disease caused by the disorders of sialic acid metabolism. This family belongs to the GT-B structural superfamily of glycoslytransferases, which have characteristic N- and C-terminal domains each containing a typical Rossmann fold. The two domains have high structural homology despite minimal sequence homology. The large cleft that separates the two domains includes the catalytic center and permits a high degree of flexibility.
Pssm-ID: 340819 [Multi-domain] Cd Length: 365 Bit Score: 278.32 E-value: 3.15e-91
UDP-N-acetylglucosamine 2-epimerase; This family consists of UDP-N-acetylglucosamine ...
24-358
9.30e-70
UDP-N-acetylglucosamine 2-epimerase; This family consists of UDP-N-acetylglucosamine 2-epimerases EC:5.1.3.14 this enzyme catalyzes the production of UDP-ManNAc from UDP-GlcNAc. Note that some of the enzymes is this family are bifunctional such as Swiss:O35826 and Swiss:Q9Z0P6 in this instance Pfam matches only the N-terminal half of the protein suggesting that the additional C-terminal part (when compared to mono-functional members of this family) is responsible for the UPD-N-acetylmannosamine kinase activity of these enzymes. This hypothesis is further supported by the assumption that the C-terminal part of Swiss:O35826 is the kinase domain.
Pssm-ID: 426733 [Multi-domain] Cd Length: 336 Bit Score: 222.02 E-value: 9.30e-70
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.
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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
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Domains are color coded according to superfamilies
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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
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Modify your query to search against a different database and/or use advanced search options
