Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, ...
3-228
1.08e-147
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, Yggs-like proteins; This subfamily contains mainly uncharacterized proteobacterial proteins with similarity to the hypothetical Escherichia coli protein YggS, a homolog of yeast YBL036c, which is homologous to a Pseudomonas aeruginosa gene that is co-transcribed with a known proline biosynthetic gene. Like yeast YBL036c, Yggs is a single domain monomeric protein with a typical TIM-barrel fold. Its structure, which shows a covalently-bound PLP cofactor, is similar to the N-terminal domain of the fold type III PLP-dependent enzymes, bacterial alanine racemase and eukaryotic ornithine decarboxylase, which are two-domain dimeric proteins. YggS has not been characterized extensively and its biological function is still unkonwn.
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Pssm-ID: 143497 Cd Length: 224 Bit Score: 410.43 E-value: 1.08e-147
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, ...
3-228
1.08e-147
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, Yggs-like proteins; This subfamily contains mainly uncharacterized proteobacterial proteins with similarity to the hypothetical Escherichia coli protein YggS, a homolog of yeast YBL036c, which is homologous to a Pseudomonas aeruginosa gene that is co-transcribed with a known proline biosynthetic gene. Like yeast YBL036c, Yggs is a single domain monomeric protein with a typical TIM-barrel fold. Its structure, which shows a covalently-bound PLP cofactor, is similar to the N-terminal domain of the fold type III PLP-dependent enzymes, bacterial alanine racemase and eukaryotic ornithine decarboxylase, which are two-domain dimeric proteins. YggS has not been characterized extensively and its biological function is still unkonwn.
Pssm-ID: 143497 Cd Length: 224 Bit Score: 410.43 E-value: 1.08e-147
pyridoxal phosphate enzyme, YggS family; Members of this protein family include YggS from ...
1-229
2.34e-130
pyridoxal phosphate enzyme, YggS family; Members of this protein family include YggS from Escherichia coli and YBL036C, an uncharacterized pyridoxal protein of Saccharomyces cerevisiae. [Unknown function, Enzymes of unknown specificity]
Pssm-ID: 129155 [Multi-domain] Cd Length: 229 Bit Score: 366.86 E-value: 2.34e-130
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, ...
3-228
1.08e-147
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, Yggs-like proteins; This subfamily contains mainly uncharacterized proteobacterial proteins with similarity to the hypothetical Escherichia coli protein YggS, a homolog of yeast YBL036c, which is homologous to a Pseudomonas aeruginosa gene that is co-transcribed with a known proline biosynthetic gene. Like yeast YBL036c, Yggs is a single domain monomeric protein with a typical TIM-barrel fold. Its structure, which shows a covalently-bound PLP cofactor, is similar to the N-terminal domain of the fold type III PLP-dependent enzymes, bacterial alanine racemase and eukaryotic ornithine decarboxylase, which are two-domain dimeric proteins. YggS has not been characterized extensively and its biological function is still unkonwn.
Pssm-ID: 143497 Cd Length: 224 Bit Score: 410.43 E-value: 1.08e-147
pyridoxal phosphate enzyme, YggS family; Members of this protein family include YggS from ...
1-229
2.34e-130
pyridoxal phosphate enzyme, YggS family; Members of this protein family include YggS from Escherichia coli and YBL036C, an uncharacterized pyridoxal protein of Saccharomyces cerevisiae. [Unknown function, Enzymes of unknown specificity]
Pssm-ID: 129155 [Multi-domain] Cd Length: 229 Bit Score: 366.86 E-value: 2.34e-130
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes, YBL036c-like proteins; This family ...
4-227
3.12e-104
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes, YBL036c-like proteins; This family contains mostly uncharacterized proteins, widely distributed among eukaryotes, bacteria and archaea, that bear similarity to the yeast hypothetical protein YBL036c, which is homologous to a Pseudomonas aeruginosa gene that is co-transcribed with a known proline biosynthetic gene. YBL036c is a single domain monomeric protein with a typical TIM barrel fold. It binds the PLP cofactor and has been shown to exhibit amino acid racemase activity. The YBL036c structure is similar to the N-terminal domain of the fold type III PLP-dependent enzymes, bacterial alanine racemase and eukaryotic ornithine decarboxylase, which are two-domain dimeric proteins. The lack of a second domain in YBL036c may explain limited D- to L-alanine racemase or non-specific racemase activity.
Pssm-ID: 143483 Cd Length: 222 Bit Score: 300.54 E-value: 3.12e-104
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, ...
4-227
1.24e-68
Pyridoxal 5-phosphate (PLP)-binding TIM barrel domain of Type III PLP-Dependent Enzymes, Eukaryotic YBL036c-like proteins; This subfamily contains mostly uncharacterized eukaryotic proteins with similarity to the yeast hypothetical protein YBL036c, which is homologous to a Pseudomonas aeruginosa gene that is co-transcribed with a known proline biosynthetic gene. YBL036c is a single domain monomeric protein with a typical TIM barrel fold. It binds the PLP cofactor and has been shown to exhibit amino acid racemase activity. The YBL036c structure is similar to the N-terminal domain of the fold type III PLP-dependent enzymes, bacterial alanine racemase and eukaryotic ornithine decarboxylase, which are two-domain dimeric proteins. The lack of a second domain in YBL036c may explain limited D- to L-alanine racemase or non-specific racemase activity. Some members of this subfamily are also referred to as PROSC (Proline synthetase co-transcribed bacterial homolog).
Pssm-ID: 143496 Cd Length: 227 Bit Score: 210.52 E-value: 1.24e-68
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes; The fold type III PLP-dependent enzyme ...
4-223
4.42e-45
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes; The fold type III PLP-dependent enzyme family is predominantly composed of two-domain proteins with similarity to bacterial alanine racemases (AR) including eukaryotic ornithine decarboxylases (ODC), prokaryotic diaminopimelate decarboxylases (DapDC), biosynthetic arginine decarboxylases (ADC), carboxynorspermidine decarboxylases (CANSDC), and similar proteins. AR-like proteins contain an N-terminal PLP-binding TIM-barrel domain and a C-terminal beta-sandwich domain. They exist as homodimers with active sites that lie at the interface between the TIM barrel domain of one subunit and the beta-sandwich domain of the other subunit. These proteins play important roles in the biosynthesis of amino acids and polyamine. The family also includes the single-domain YBL036c-like proteins, which contain a single PLP-binding TIM-barrel domain without any N- or C-terminal extensions. Due to the lack of a second domain, these proteins may possess only limited D- to L-alanine racemase activity or non-specific racemase activity.
Pssm-ID: 143484 [Multi-domain] Cd Length: 211 Bit Score: 149.78 E-value: 4.42e-45
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzyme Alanine Racemase; This family includes ...
4-227
1.54e-04
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzyme Alanine Racemase; This family includes predominantly bacterial alanine racemases (AR), some serine racemases (SerRac), and putative bifunctional enzymes containing N-terminal UDP-N-acetylmuramoyl-tripeptide:D-alanyl-D-alanine ligase (murF) and C-terminal AR domains. These proteins are fold type III PLP-dependent enzymes that play essential roles in peptidoglycan biosynthesis. AR catalyzes the interconversion between L- and D-alanine, which is an essential component of the peptidoglycan layer of bacterial cell walls. SerRac converts L-serine into its D-enantiomer (D-serine) for peptidoglycan synthesis. murF catalyzes the addition of D-Ala-D-Ala to UDPMurNAc-tripeptide, the final step in the synthesis of the cytoplasmic precursor of bacterial cell wall peptidoglycan. Members of this family contain an N-terminal PLP-binding TIM-barrel domain and a C-terminal beta-sandwich domain. They exist as homodimers with active sites that lie at the interface between the TIM barrel domain of one subunit and the beta-sandwich domain of the other subunit. AR and other members of this family require dimer formation and the presence of the PLP cofactor for catalytic activity. Fungal ARs and eukaryotic serine racemases, which are fold types I and II PLP-dependent enzymes respectively, are excluded from this family.
Pssm-ID: 143481 [Multi-domain] Cd Length: 367 Bit Score: 42.10 E-value: 1.54e-04
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes, Low Specificity D-Threonine ...
102-229
3.13e-04
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzymes, Low Specificity D-Threonine Aldolase-like; This subfamily is composed of uncharacterized bacterial proteins with similarity to low specificity D-threonine aldolase (D-TA), which is a fold type III PLP-dependent enzyme that catalyzes the interconversion between D-threonine/D-allo-threonine and glycine plus acetaldehyde. Both PLP and divalent cations (eg. Mn2+) are required for catalytic activity. Low specificity D-TAs show similarity to bacterial alanine racemase (AR), which contains an N-terminal PLP-binding TIM-barrel domain and a C-terminal beta-sandwich domain. AR exists as homodimers with active sites that lie at the interface between the TIM barrel domain of one subunit and the beta-sandwich domain of the other subunit. Based on its similarity to AR, it is possible that low specificity D-TAs also form dimers in solution. Experimental data show that the monomeric form of low specificity D-TAs exhibit full catalytic activity.
Pssm-ID: 143494 [Multi-domain] Cd Length: 353 Bit Score: 41.15 E-value: 3.13e-04
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzyme Bacterial Cryptic D-Serine Dehydratase; ...
90-163
5.57e-03
Type III Pyridoxal 5-phosphate (PLP)-Dependent Enzyme Bacterial Cryptic D-Serine Dehydratase; This subfamily is composed of Burkholderia cepacia cryptic D-serine dehydratase (cryptic DSD), which is also called D-serine deaminase, and similar bacterial proteins. Members of this subfamily are fold type III PLP-dependent enzymes with similarity to bacterial alanine racemase (AR), which contains an N-terminal PLP-binding TIM-barrel domain and a C-terminal beta-sandwich domain. AR exists as dimers with active sites that lie at the interface between the TIM barrel domain of one subunit and the beta-sandwich domain of the other subunit. Based on similarity, it is possible cryptic DSDs may also form dimers. Cryptic DSDs are distinct from the ubiquitous bacterial DSDs coded by the dsdA gene, mammalian L-serine dehydratases (LSD) and mammalian serine racemase (SerRac), which are fold type II PLP-dependent enzymes. At present, the enzymatic and biochemical properties of cryptic DSDs are still poorly understood. Typically, DSDs catalyze the dehydration of D-serine to aminoacrylate, which is rapidly hydrolyzed to pyruvate and ammonia.
Pssm-ID: 143492 [Multi-domain] Cd Length: 382 Bit Score: 37.27 E-value: 5.57e-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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Functional characterization of the conserved domain architecture found on the query.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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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.
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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.
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