Fumarylacetoacetate (FAA) hydrolase family; This family consists of fumarylacetoacetate (FAA) ...
20-218
3.46e-63
Fumarylacetoacetate (FAA) hydrolase family; This family consists of fumarylacetoacetate (FAA) hydrolase, or fumarylacetoacetate hydrolase (FAH) and it also includes HHDD isomerase/OPET decarboxylase from E. coli strain W. FAA is the last enzyme in the tyrosine catabolic pathway, it hydrolyses fumarylacetoacetate into fumarate and acetoacetate which then join the citric acid cycle. Mutations in FAA cause type I tyrosinemia in humans this is an inherited disorder mainly affecting the liver leading to liver cirrhosis, hepatocellular carcinoma, renal tubular damages and neurologic crises amongst other symptoms. The enzymatic defect causes the toxic accumulation of phenylalanine/tyrosine catabolites. The E. coli W enzyme HHDD isomerase/OPET decarboxylase contains two copies of this domain and functions in fourth and fifth steps of the homoprotocatechuate pathway; here it decarboxylates OPET to HHDD and isomerizes this to OHED. The final products of this pathway are pyruvic acid and succinic semialdehyde. This family also includes various hydratases and 4-oxalocrotonate decarboxylases which are involved in the bacterial meta-cleavage pathways for degradation of aromatic compounds. 2-hydroxypentadienoic acid hydratase encoded by mhpD in E. coli is involved in the phenylpropionic acid pathway of E. coli and catalyzes the conversion of 2-hydroxy pentadienoate to 4-hydroxy-2-keto-pentanoate and uses a Mn2+ co-factor. OHED hydratase encoded by hpcG in E. coli is involved in the homoprotocatechuic acid (HPC) catabolism. XylI in P. putida is a 4-Oxalocrotonate decarboxylase.
Pssm-ID: 460252 Cd Length: 210 Bit Score: 195.20 E-value: 3.46e-63
4-hydroxyphenylacetate degradation bifunctional isomerase/decarboxylase, C-terminal subunit; This model represents one of two subunits/domains of the bifunctional isomerase/decarboxylase involved in 4-hydroxyphenylacetate degradation. In E. coli and some other species this enzyme is encoded by a single polypeptide containing both this domain and the closely related N-terminal domain (TIGR02305). In other species such as Pasteurella multocida these domains are found as two separate proteins (usually as tandem genes). Together, these domains carry out the decarboxylation of 5-oxopent-3-ene-1,2,5-tricarboxylic acid (OPET) to 2-hydroxy-2,4-diene-1,7-dioate (HHDD) and the subsequent isomerization to 2-oxohept-3-ene-1,7-dioate (OHED).
Pssm-ID: 131356 [Multi-domain] Cd Length: 245 Bit Score: 156.90 E-value: 1.34e-47
Fumarylacetoacetate (FAA) hydrolase family; This family consists of fumarylacetoacetate (FAA) ...
20-218
3.46e-63
Fumarylacetoacetate (FAA) hydrolase family; This family consists of fumarylacetoacetate (FAA) hydrolase, or fumarylacetoacetate hydrolase (FAH) and it also includes HHDD isomerase/OPET decarboxylase from E. coli strain W. FAA is the last enzyme in the tyrosine catabolic pathway, it hydrolyses fumarylacetoacetate into fumarate and acetoacetate which then join the citric acid cycle. Mutations in FAA cause type I tyrosinemia in humans this is an inherited disorder mainly affecting the liver leading to liver cirrhosis, hepatocellular carcinoma, renal tubular damages and neurologic crises amongst other symptoms. The enzymatic defect causes the toxic accumulation of phenylalanine/tyrosine catabolites. The E. coli W enzyme HHDD isomerase/OPET decarboxylase contains two copies of this domain and functions in fourth and fifth steps of the homoprotocatechuate pathway; here it decarboxylates OPET to HHDD and isomerizes this to OHED. The final products of this pathway are pyruvic acid and succinic semialdehyde. This family also includes various hydratases and 4-oxalocrotonate decarboxylases which are involved in the bacterial meta-cleavage pathways for degradation of aromatic compounds. 2-hydroxypentadienoic acid hydratase encoded by mhpD in E. coli is involved in the phenylpropionic acid pathway of E. coli and catalyzes the conversion of 2-hydroxy pentadienoate to 4-hydroxy-2-keto-pentanoate and uses a Mn2+ co-factor. OHED hydratase encoded by hpcG in E. coli is involved in the homoprotocatechuic acid (HPC) catabolism. XylI in P. putida is a 4-Oxalocrotonate decarboxylase.
Pssm-ID: 460252 Cd Length: 210 Bit Score: 195.20 E-value: 3.46e-63
4-hydroxyphenylacetate degradation bifunctional isomerase/decarboxylase, C-terminal subunit; This model represents one of two subunits/domains of the bifunctional isomerase/decarboxylase involved in 4-hydroxyphenylacetate degradation. In E. coli and some other species this enzyme is encoded by a single polypeptide containing both this domain and the closely related N-terminal domain (TIGR02305). In other species such as Pasteurella multocida these domains are found as two separate proteins (usually as tandem genes). Together, these domains carry out the decarboxylation of 5-oxopent-3-ene-1,2,5-tricarboxylic acid (OPET) to 2-hydroxy-2,4-diene-1,7-dioate (HHDD) and the subsequent isomerization to 2-oxohept-3-ene-1,7-dioate (OHED).
Pssm-ID: 131356 [Multi-domain] Cd Length: 245 Bit Score: 156.90 E-value: 1.34e-47
4-hydroxyphenylacetate degradation bifunctional isomerase/decarboxylase, N-terminal subunit; This model represents one of two subunits/domains of the bifunctional isomerase/decarboxylase involved in 4-hydroxyphenylacetate degradation. In E. coli and some other species this enzyme is encoded by a single polypeptide containing both this domain and the closely related C-terminal domain (TIGR02303). In other species such as Pasteurella multocida these domains are found as two separate proteins (usually as tandem genes). Together, these domains carry out the decarboxylation of 5-oxopent-3-ene-1,2,5-tricarboxylic acid (OPET) to 2-hydroxy-2,4-diene-1,7-dioate (HHDD) and the subsequent isomerization to 2-oxohept-3-ene-1,7-dioate (OHED).
Pssm-ID: 131358 Cd Length: 205 Bit Score: 126.00 E-value: 3.52e-36
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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(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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