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VOC family protein [Sinorhizobium medicae]
VOC family protein( domain architecture ID 10790122)
vicinal oxygen chelate (VOC) family protein uses a metal center to coordinate a substrate, intermediate, or transition state through vicinal oxygen atoms
List of domain hits
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Name | Accession | Description | Interval | E-value | |||
VOC | COG3324 | Lactoylglutathione lyase-related enzyme, vicinal oxygen chelate (VOC) family [General function ... |
1-126 | 4.73e-19 | |||
Lactoylglutathione lyase-related enzyme, vicinal oxygen chelate (VOC) family [General function prediction only]; : Pssm-ID: 442553 [Multi-domain] Cd Length: 119 Bit Score: 76.21 E-value: 4.73e-19
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Name | Accession | Description | Interval | E-value | |||
VOC | COG3324 | Lactoylglutathione lyase-related enzyme, vicinal oxygen chelate (VOC) family [General function ... |
1-126 | 4.73e-19 | |||
Lactoylglutathione lyase-related enzyme, vicinal oxygen chelate (VOC) family [General function prediction only]; Pssm-ID: 442553 [Multi-domain] Cd Length: 119 Bit Score: 76.21 E-value: 4.73e-19
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VOC | cd06587 | vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate (VOC) superfamily is composed ... |
8-121 | 1.91e-16 | |||
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: 69.48 E-value: 1.91e-16
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Glyoxalase | pfam00903 | Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily; |
8-121 | 4.59e-14 | |||
Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily; Pssm-ID: 395724 [Multi-domain] Cd Length: 121 Bit Score: 63.62 E-value: 4.59e-14
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PRK11478 | PRK11478 | VOC family protein; |
11-123 | 8.41e-04 | |||
VOC family protein; Pssm-ID: 183156 [Multi-domain] Cd Length: 129 Bit Score: 36.80 E-value: 8.41e-04
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Name | Accession | Description | Interval | E-value | |||
VOC | COG3324 | Lactoylglutathione lyase-related enzyme, vicinal oxygen chelate (VOC) family [General function ... |
1-126 | 4.73e-19 | |||
Lactoylglutathione lyase-related enzyme, vicinal oxygen chelate (VOC) family [General function prediction only]; Pssm-ID: 442553 [Multi-domain] Cd Length: 119 Bit Score: 76.21 E-value: 4.73e-19
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GloA | COG0346 | Catechol 2,3-dioxygenase or related enzyme, vicinal oxygen chelate (VOC) family [Secondary ... |
8-126 | 2.75e-18 | |||
Catechol 2,3-dioxygenase or related enzyme, vicinal oxygen chelate (VOC) family [Secondary metabolites biosynthesis, transport and catabolism]; Pssm-ID: 440115 [Multi-domain] Cd Length: 125 Bit Score: 74.64 E-value: 2.75e-18
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VOC | cd06587 | vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate (VOC) superfamily is composed ... |
8-121 | 1.91e-16 | |||
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: 69.48 E-value: 1.91e-16
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Glyoxalase | pfam00903 | Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily; |
8-121 | 4.59e-14 | |||
Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily; Pssm-ID: 395724 [Multi-domain] Cd Length: 121 Bit Score: 63.62 E-value: 4.59e-14
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PhnB | COG2764 | Zn-dependent glyoxalase, PhnB family [Energy production and conversion]; |
11-124 | 4.99e-11 | |||
Zn-dependent glyoxalase, PhnB family [Energy production and conversion]; Pssm-ID: 442048 [Multi-domain] Cd Length: 118 Bit Score: 55.63 E-value: 4.99e-11
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VOC_like | cd07263 | uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ... |
12-123 | 6.75e-11 | |||
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: 319924 [Multi-domain] Cd Length: 120 Bit Score: 55.38 E-value: 6.75e-11
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VOC_like | cd08354 | uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ... |
12-121 | 6.99e-09 | |||
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: 319942 Cd Length: 122 Bit Score: 50.06 E-value: 6.99e-09
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VOC_like | cd07264 | uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ... |
7-124 | 7.13e-09 | |||
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: 50.02 E-value: 7.13e-09
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VOC_like | cd07245 | uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ... |
12-121 | 1.77e-08 | |||
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: 319909 [Multi-domain] Cd Length: 117 Bit Score: 48.85 E-value: 1.77e-08
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VOC_like | cd08359 | uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ... |
11-123 | 5.22e-08 | |||
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: 319947 [Multi-domain] Cd Length: 119 Bit Score: 47.78 E-value: 5.22e-08
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CatE | COG2514 | Catechol-2,3-dioxygenase [Secondary metabolites biosynthesis, transport and catabolism]; |
12-127 | 6.58e-08 | |||
Catechol-2,3-dioxygenase [Secondary metabolites biosynthesis, transport and catabolism]; Pssm-ID: 442004 [Multi-domain] Cd Length: 141 Bit Score: 48.03 E-value: 6.58e-08
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Glyoxalase_6 | pfam18029 | Glyoxalase-like domain; This entry comprises a diverse set of domains related to the ... |
12-117 | 1.11e-07 | |||
Glyoxalase-like domain; This entry comprises a diverse set of domains related to the Glyoxalase domain. The exact specificity of these proteins is uncertain. Pssm-ID: 436220 Cd Length: 110 Bit Score: 46.60 E-value: 1.11e-07
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BLMA_like | cd08349 | Bleomycin binding protein (BLMA) and similar proteins; BLMA also called Bleomycin resistance ... |
12-123 | 1.23e-07 | |||
Bleomycin binding protein (BLMA) and similar proteins; BLMA also called Bleomycin resistance protein, confers Bm resistance by directly binding to Bm. Bm is a glycopeptide antibiotic produced naturally by actinomycetes. It is a potent anti-cancer drug, which acts as a strong DNA-cutting agent, thereby causing cell death. BLMA is produced by actinomycetes to protect themselves against their own lethal compound. BLMA has two identically-folded subdomains, with the same alpha/beta fold; these two halves have no sequence similarity. BLMAs are dimers and each dimer binds to two Bm molecules at the Bm-binding pockets formed at the dimer interface; two Bm molecules are bound per dimer. BLMA belongs to a conserved domain superfamily that is found in a variety of structurally related metalloproteins, including the bleomycin resistance protein, glyoxalase I, and type I ring-cleaving dioxygenases. As for the larger superfamily, this family contains members with or without domain swapping. Pssm-ID: 319937 [Multi-domain] Cd Length: 114 Bit Score: 46.45 E-value: 1.23e-07
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Glyoxalase_4 | pfam13669 | Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily; |
10-96 | 2.96e-06 | |||
Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily; Pssm-ID: 463951 [Multi-domain] Cd Length: 109 Bit Score: 43.04 E-value: 2.96e-06
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VOC_like | cd07246 | uncharacterized subfamily of vicinal oxygen chelate (VOC) family; The vicinal oxygen chelate ... |
4-124 | 3.74e-06 | |||
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: 319910 [Multi-domain] Cd Length: 124 Bit Score: 43.05 E-value: 3.74e-06
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TioX_like | cd08355 | Micromonospora sp. TioX and similar proteins; Micromonospora sp. TioX is encoded by a gene of ... |
14-117 | 8.62e-06 | |||
Micromonospora sp. TioX and similar proteins; Micromonospora sp. TioX is encoded by a gene of the thiocoraline biosynthetic gene cluster. Thiocoraline is a thiodepsipeptide with potent antitumor activity. TioX may be involved in thiocoraline resistance or secretion. TioX belongs to vicinal oxygen chelate (VOC) superfamily that 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: 319943 Cd Length: 123 Bit Score: 42.02 E-value: 8.62e-06
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SgaA_N_like | cd07247 | N-terminal domain of Streptomyces griseus SgaA and similar domains; SgaA suppresses the growth ... |
11-123 | 2.47e-05 | |||
N-terminal domain of Streptomyces griseus SgaA and similar domains; SgaA suppresses the growth disturbances caused by high osmolarity and a high concentration of A-factor, a microbial hormone, during the early growth phase in Streptomyces griseus. A-factor (2-isocapryloyl-3R-hydroxymethyl-gamma-butyrolactone) controls morphological differentiation and secondary metabolism in Streptomyces griseus. It is a chemical signaling molecule that at a very low concentration acts as a switch for yellow pigment production, aerial mycelium formation, streptomycin production, and streptomycin resistance. The structure and amino acid sequence of SgaA are closely related to a group of antibiotics resistance proteins, including bleomycin resistance protein, mitomycin resistance protein, and fosfomycin resistance proteins. SgaA might also function as a streptomycin resistance protein. Pssm-ID: 319911 [Multi-domain] Cd Length: 114 Bit Score: 40.71 E-value: 2.47e-05
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VOC_like | cd16355 | uncharacterized subfamily of vicinal oxygen chelate (VOC) superfamily; The vicinal oxygen ... |
12-97 | 1.15e-04 | |||
uncharacterized subfamily of vicinal oxygen chelate (VOC) superfamily; 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: 319962 Cd Length: 121 Bit Score: 39.01 E-value: 1.15e-04
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VOC_ShValD_like | cd16361 | vicinal oxygen chelate (VOC) family protein similar to Streptomyces hygroscopicus ValD protein; ... |
5-123 | 1.45e-04 | |||
vicinal oxygen chelate (VOC) family protein similar to Streptomyces hygroscopicus ValD protein; This subfamily of vicinal oxygen chelate (VOC) family protein includes Streptomyces hygroscopicus ValD protein and similar proteins. ValD protein functions in validamycin biosynthetic pathway. 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: 319968 Cd Length: 150 Bit Score: 39.24 E-value: 1.45e-04
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HppD | COG3185 | 4-hydroxyphenylpyruvate dioxygenase and related hemolysins [Amino acid transport and ... |
5-96 | 1.88e-04 | |||
4-hydroxyphenylpyruvate dioxygenase and related hemolysins [Amino acid transport and metabolism, General function prediction only]; Pssm-ID: 442418 [Multi-domain] Cd Length: 333 Bit Score: 39.49 E-value: 1.88e-04
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PRK11478 | PRK11478 | VOC family protein; |
11-123 | 8.41e-04 | |||
VOC family protein; Pssm-ID: 183156 [Multi-domain] Cd Length: 129 Bit Score: 36.80 E-value: 8.41e-04
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MMCE | cd07249 | Methylmalonyl-CoA epimerase (MMCE); MMCE, also called methylmalonyl-CoA racemase (EC 5.1.99.1) ... |
10-123 | 1.16e-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: 1.16e-03
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GLOD5 | cd07253 | Human glyoxalase domain-containing protein 5 and similar proteins; Uncharacterized subfamily ... |
12-121 | 1.35e-03 | |||
Human glyoxalase domain-containing protein 5 and similar proteins; Uncharacterized subfamily of VOC family contains human glyoxalase domain-containing protein 5 and similar proteins. 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: 319916 [Multi-domain] Cd Length: 123 Bit Score: 36.05 E-value: 1.35e-03
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PLN02367 | PLN02367 | lactoylglutathione lyase |
69-122 | 1.68e-03 | |||
lactoylglutathione lyase Pssm-ID: 177995 Cd Length: 233 Bit Score: 36.52 E-value: 1.68e-03
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HPPD_C_like | cd07250 | C-terminal domain of 4-hydroxyphenylpyruvate dioxygenase (HppD) and hydroxymandelate synthase ... |
13-96 | 9.45e-03 | |||
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: 34.45 E-value: 9.45e-03
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