4-hydroxyphenylpyruvate dioxygenase (4HPPD) family protein such as 4HPPD and Amycolatopsis orientalis 4-hydroxymandelate synthase (HMS), which catalyzes the conversion of 4-hydroxyphenylpyruvate to homogentisate and 4-hydroxymandelate, respectively
4-hydroxyphenylpyruvate dioxygenase; This protein oxidizes 4-hydroxyphenylpyruvate, a tyrosine ...
19-381
3.60e-167
4-hydroxyphenylpyruvate dioxygenase; This protein oxidizes 4-hydroxyphenylpyruvate, a tyrosine and phenylalanine catabolite, to homogentisate. Homogentisate can undergo a further non-enzymatic oxidation and polymerization into brown pigments that protect some bacterial species from light. A similar process occurs spontaneously in blood and is hemolytic (see . In some bacterial species, this enzyme has been studied as a hemolysin. [Energy metabolism, Amino acids and amines]
:
Pssm-ID: 273528 [Multi-domain] Cd Length: 352 Bit Score: 471.76 E-value: 3.60e-167
4-hydroxyphenylpyruvate dioxygenase; This protein oxidizes 4-hydroxyphenylpyruvate, a tyrosine ...
19-381
3.60e-167
4-hydroxyphenylpyruvate dioxygenase; This protein oxidizes 4-hydroxyphenylpyruvate, a tyrosine and phenylalanine catabolite, to homogentisate. Homogentisate can undergo a further non-enzymatic oxidation and polymerization into brown pigments that protect some bacterial species from light. A similar process occurs spontaneously in blood and is hemolytic (see . In some bacterial species, this enzyme has been studied as a hemolysin. [Energy metabolism, Amino acids and amines]
Pssm-ID: 273528 [Multi-domain] Cd Length: 352 Bit Score: 471.76 E-value: 3.60e-167
C-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HppD) and hydroxymandelate synthase ...
178-373
2.79e-121
C-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HppD) and hydroxymandelate synthase (HmaS); HppD and HmaS are non-heme iron-dependent dioxygenases, which modify a common substrate, 4-hydroxyphenylpyruvate (HPP), but yield different products. HPPD catalyzes the second reaction in tyrosine catabolism, the conversion of 4-hydroxyphenylpyruvate to homogentisate (2,5-dihydroxyphenylacetic acid, HG). HmaS converts HPP to 4-hydroxymandelate, a committed step in the formation of hydroxyphenylglycerine, a structural component of nonproteinogenic macrocyclic peptide antibiotics, such as vancomycin. If the emphasis is on catalytic chemistry, HPPD and HmaS are classified as members of a large family of alpha-keto acid dependent mononuclear non-heme iron oxygenases most of which require Fe(II), molecular oxygen, and an alpha-keto acid (typically alpha-ketoglutarate) to either oxygenate or oxidize a third substrate. Both enzymes are exceptions in that they require two, instead of three, substrates, do not use alpha-ketoglutarate, and incorporate both atoms of dioxygen into the aromatic product. Both HPPD and HmaS exhibit duplicate beta barrel topology in their N- and C-terminal domains which share sequence similarity, suggestive of a gene duplication. Each protein has only one catalytic site located in at the C-terminal domain. This HPPD_C_like domain represents the C-terminal domain.
Pssm-ID: 319913 Cd Length: 194 Bit Score: 349.16 E-value: 2.79e-121
4-hydroxyphenylpyruvate dioxygenase; This protein oxidizes 4-hydroxyphenylpyruvate, a tyrosine ...
19-381
3.60e-167
4-hydroxyphenylpyruvate dioxygenase; This protein oxidizes 4-hydroxyphenylpyruvate, a tyrosine and phenylalanine catabolite, to homogentisate. Homogentisate can undergo a further non-enzymatic oxidation and polymerization into brown pigments that protect some bacterial species from light. A similar process occurs spontaneously in blood and is hemolytic (see . In some bacterial species, this enzyme has been studied as a hemolysin. [Energy metabolism, Amino acids and amines]
Pssm-ID: 273528 [Multi-domain] Cd Length: 352 Bit Score: 471.76 E-value: 3.60e-167
C-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HppD) and hydroxymandelate synthase ...
178-373
2.79e-121
C-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HppD) and hydroxymandelate synthase (HmaS); HppD and HmaS are non-heme iron-dependent dioxygenases, which modify a common substrate, 4-hydroxyphenylpyruvate (HPP), but yield different products. HPPD catalyzes the second reaction in tyrosine catabolism, the conversion of 4-hydroxyphenylpyruvate to homogentisate (2,5-dihydroxyphenylacetic acid, HG). HmaS converts HPP to 4-hydroxymandelate, a committed step in the formation of hydroxyphenylglycerine, a structural component of nonproteinogenic macrocyclic peptide antibiotics, such as vancomycin. If the emphasis is on catalytic chemistry, HPPD and HmaS are classified as members of a large family of alpha-keto acid dependent mononuclear non-heme iron oxygenases most of which require Fe(II), molecular oxygen, and an alpha-keto acid (typically alpha-ketoglutarate) to either oxygenate or oxidize a third substrate. Both enzymes are exceptions in that they require two, instead of three, substrates, do not use alpha-ketoglutarate, and incorporate both atoms of dioxygen into the aromatic product. Both HPPD and HmaS exhibit duplicate beta barrel topology in their N- and C-terminal domains which share sequence similarity, suggestive of a gene duplication. Each protein has only one catalytic site located in at the C-terminal domain. This HPPD_C_like domain represents the C-terminal domain.
Pssm-ID: 319913 Cd Length: 194 Bit Score: 349.16 E-value: 2.79e-121
N-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HPPD) and hydroxymandelate Synthase ...
19-162
5.15e-72
N-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HPPD) and hydroxymandelate Synthase (HmaS); HppD and HmaS are non-heme iron-dependent dioxygenases, which modify a common substrate, 4-hydroxyphenylpyruvate (HPP), but yield different products. HPPD catalyzes the second reaction in tyrosine catabolism, the conversion of HPP to homogentisate (2,5-dihydroxyphenylacetic acid, HG). HmaS converts HPP to 4-hydroxymandelate, a committed step in the formation of hydroxyphenylglycerine, a structural component of nonproteinogenic macrocyclic peptide antibiotics, such as vancomycin. If the emphasis is on catalytic chemistry, HPPD and HmaS are classified as members of a large family of alpha-keto acid dependent mononuclear non-heme iron oxygenases most of which require Fe(II), molecular oxygen, and an alpha-keto acid (typically alpha-ketoglutarate) to either oxygenate or oxidize a third substrate. Both enzymes are exceptions in that they require two, instead of three, substrates, do not use alpha-ketoglutarate, and incorporate both atoms of dioxygen into the aromatic product. Both HPPD and HmaS exhibit duplicate beta barrel topology in their N- and C-terminal domains which share sequence similarity, suggestive of a gene duplication. Each protein has only one catalytic site located in at the C-terminal domain. This HPPD_N_like domain represents the N-terminal domain.
Pssm-ID: 319930 Cd Length: 141 Bit Score: 221.70 E-value: 5.15e-72
vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate (VOC) superfamily is composed ...
21-135
1.03e-06
vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate (VOC) superfamily is composed of structurally related proteins with paired beta.alpha.beta.beta.beta motifs that provide a metal coordination environment with two or three open or readily accessible coordination sites to promote direct electrophilic participation of the metal ion in catalysis. VOC is found in a variety of structurally related metalloproteins, including the type I extradiol dioxygenases, glyoxalase I and a group of antibiotic resistance proteins. A bound metal ion is required for protein activities for the members of this superfamily. A variety of metal ions have been found in the catalytic centers of these proteins including Fe(II), Mn(II), Zn(II), Ni(II) and Mg(II). Type I extradiol dioxygenases catalyze the incorporation of both atoms of molecular oxygen into aromatic substrates, which results in the cleavage of aromatic rings. They are key enzymes in the degradation of aromatic compounds. Type I extradiol dioxygenases include class I and class II enzymes. Class I and II enzymes show sequence similarity; the two-domain class II enzymes evolved from a class I enzyme through gene duplication. Glyoxylase I catalyzes the glutathione-dependent inactivation of toxic methylglyoxal, requiring zinc or nickel ions for activity. The antibiotic resistance proteins in this family use a variety of mechanisms to block the function of antibiotics. Bleomycin resistance protein (BLMA) sequesters bleomycin's activity by directly binding to it. Whereas, three types of fosfomycin resistance proteins employ different mechanisms to render fosfomycin inactive by modifying the fosfomycin molecule. Although the proteins in this superfamily are functionally distinct, their structures are similar. The difference among the three dimensional structures of the three types of proteins in this superfamily is interesting from an evolutionary perspective. Both glyoxalase I and BLMA show domain swapping between subunits. However, there is no domain swapping for type 1 extradiol dioxygenases.
Pssm-ID: 319898 [Multi-domain] Cd Length: 112 Bit Score: 47.13 E-value: 1.03e-06
Methylmalonyl-CoA epimerase (MMCE); MMCE, also called methylmalonyl-CoA racemase (EC 5.1.99.1) ...
244-290
7.57e-04
Methylmalonyl-CoA epimerase (MMCE); MMCE, also called methylmalonyl-CoA racemase (EC 5.1.99.1) interconverts (2R)-methylmalonyl-CoA and (2S)-methylmalonyl-CoA. MMCE has been found in bacteria, archaea, and in animals. In eukaryotes, MMCE is an essential enzyme in a pathway that converts propionyl-CoA to succinyl-CoA, and is important in the breakdown of odd-chain length fatty acids, branched-chain amino acids, and other metabolites. In bacteria, MMCE participates in the reverse pathway for propionate fermentation, glyoxylate regeneration, and the biosynthesis of polyketide antibiotics. MMCE is closely related to glyoxalase I and type I extradiol dioxygenases.
Pssm-ID: 319912 [Multi-domain] Cd Length: 127 Bit Score: 39.10 E-value: 7.57e-04
uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ...
21-121
2.66e-03
uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate (VOC) superfamily is composed of structurally related proteins with paired beta.alpha.beta.beta.beta motifs that provide a metal coordination environment with two or three open or readily accessible coordination sites to promote direct electrophilic participation of the metal ion in catalysis. VOC domain is found in a variety of structurally related metalloproteins, including the bleomycin resistance protein, glyoxalase I, and type I ring-cleaving dioxygenases. A bound metal ion is required for protein activities for the members of this superfamily. A variety of metal ions have been found in the catalytic centers of these proteins including Fe(II), Mn(II), Zn(II), Ni(II) and Mg(II). The protein superfamily contains members with or without domain swapping. The proteins of this family share three conserved metal binding amino acids with the type I extradiol dioxygenases, which shows no domain swapping.
Pssm-ID: 319925 [Multi-domain] Cd Length: 118 Bit Score: 37.31 E-value: 2.66e-03
Methylmalonyl-CoA epimerase (MMCE); MMCE, also called methylmalonyl-CoA racemase (EC 5.1.99.1) ...
26-148
7.52e-03
Methylmalonyl-CoA epimerase (MMCE); MMCE, also called methylmalonyl-CoA racemase (EC 5.1.99.1) interconverts (2R)-methylmalonyl-CoA and (2S)-methylmalonyl-CoA. MMCE has been found in bacteria, archaea, and in animals. In eukaryotes, MMCE is an essential enzyme in a pathway that converts propionyl-CoA to succinyl-CoA, and is important in the breakdown of odd-chain length fatty acids, branched-chain amino acids, and other metabolites. In bacteria, MMCE participates in the reverse pathway for propionate fermentation, glyoxylate regeneration, and the biosynthesis of polyketide antibiotics. MMCE is closely related to glyoxalase I and type I extradiol dioxygenases.
Pssm-ID: 319912 [Multi-domain] Cd Length: 127 Bit Score: 36.40 E-value: 7.52e-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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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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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
(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
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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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