tryptophan synthase, alpha subunit; Tryptophan synthase catalyzes the last step in the ...
8-263
7.40e-123
tryptophan synthase, alpha subunit; Tryptophan synthase catalyzes the last step in the biosynthesis of tryptophan. The alpha chain is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate. In bacteria and plants each domain is found on a separate subunit (alpha and beta chains), while in fungi the two domains are fused together on a single multifunctional protein. The signature pattern for trpA contains three conserved acidic residues. [LIVM]-E-[LIVM]-G-x(2)-[FYC]-[ST]-[DE]-[PA]-[LIVMY]-[AGLI]-[DE]-G and this is located between residues 43-58 of the model. The Sulfolobus solfataricus trpA is known to be quite divergent from other known trpA sequences. [Amino acid biosynthesis, Aromatic amino acid family]
Pssm-ID: 161792 Cd Length: 256 Bit Score: 350.49 E-value: 7.40e-123
Tryptophan synthase alpha chain [Amino acid transport and metabolism]; Tryptophan synthase ...
2-267
1.84e-118
Tryptophan synthase alpha chain [Amino acid transport and metabolism]; Tryptophan synthase alpha chain is part of the Pathway/BioSystem: Aromatic amino acid biosynthesis
Pssm-ID: 439929 Cd Length: 262 Bit Score: 339.35 E-value: 1.84e-118
Ttryptophan synthase (TRPS) alpha subunit (TSA). TPRS is a bifunctional tetrameric enzyme (2 ...
18-263
1.79e-99
Ttryptophan synthase (TRPS) alpha subunit (TSA). TPRS is a bifunctional tetrameric enzyme (2 alpha and 2 beta subunits) that catalyzes the last two steps of L-tryptophan biosynthesis. Alpha and beta subunit catalyze two distinct reactions which are both strongly stimulated by the formation of the complex. The alpha subunit catalyzes the cleavage of indole 3-glycerol phosphate (IGP) to indole and d-glyceraldehyde 3-phosphate (G3P). Indole is then channeled to the active site of the beta subunit, a PLP-dependent enzyme that catalyzes a replacement reaction to convert L-serine into L-tryptophan.
Pssm-ID: 240075 Cd Length: 242 Bit Score: 290.53 E-value: 1.79e-99
tryptophan synthase, alpha subunit; Tryptophan synthase catalyzes the last step in the ...
8-263
7.40e-123
tryptophan synthase, alpha subunit; Tryptophan synthase catalyzes the last step in the biosynthesis of tryptophan. The alpha chain is responsible for the aldol cleavage of indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate. In bacteria and plants each domain is found on a separate subunit (alpha and beta chains), while in fungi the two domains are fused together on a single multifunctional protein. The signature pattern for trpA contains three conserved acidic residues. [LIVM]-E-[LIVM]-G-x(2)-[FYC]-[ST]-[DE]-[PA]-[LIVMY]-[AGLI]-[DE]-G and this is located between residues 43-58 of the model. The Sulfolobus solfataricus trpA is known to be quite divergent from other known trpA sequences. [Amino acid biosynthesis, Aromatic amino acid family]
Pssm-ID: 161792 Cd Length: 256 Bit Score: 350.49 E-value: 7.40e-123
Tryptophan synthase alpha chain [Amino acid transport and metabolism]; Tryptophan synthase ...
2-267
1.84e-118
Tryptophan synthase alpha chain [Amino acid transport and metabolism]; Tryptophan synthase alpha chain is part of the Pathway/BioSystem: Aromatic amino acid biosynthesis
Pssm-ID: 439929 Cd Length: 262 Bit Score: 339.35 E-value: 1.84e-118
Ttryptophan synthase (TRPS) alpha subunit (TSA). TPRS is a bifunctional tetrameric enzyme (2 ...
18-263
1.79e-99
Ttryptophan synthase (TRPS) alpha subunit (TSA). TPRS is a bifunctional tetrameric enzyme (2 alpha and 2 beta subunits) that catalyzes the last two steps of L-tryptophan biosynthesis. Alpha and beta subunit catalyze two distinct reactions which are both strongly stimulated by the formation of the complex. The alpha subunit catalyzes the cleavage of indole 3-glycerol phosphate (IGP) to indole and d-glyceraldehyde 3-phosphate (G3P). Indole is then channeled to the active site of the beta subunit, a PLP-dependent enzyme that catalyzes a replacement reaction to convert L-serine into L-tryptophan.
Pssm-ID: 240075 Cd Length: 242 Bit Score: 290.53 E-value: 1.79e-99
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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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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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.
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)
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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.
(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
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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
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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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