aminotransferase class IV family protein similar to Thermotoga maritima probable branched-chain amino acid aminotransferase IlvE which may catalyze the reversible transamination reaction between the L-branched-chain amino and alpha-keto acids
PyridoxaL 5'-Phosphate Dependent Enzymes class IV (PLPDE_IV). This D-amino acid superfamily, ...
27-339
4.97e-47
PyridoxaL 5'-Phosphate Dependent Enzymes class IV (PLPDE_IV). This D-amino acid superfamily, one of five classes of PLPDE, consists of branched-chain amino acid aminotransferases (BCAT), D-amino acid transferases (DAAT), and 4-amino-4-deoxychorismate lyases (ADCL). BCAT catalyzes the reversible transamination reaction between the L-branched-chain amino and alpha-keto acids. DAAT catalyzes the synthesis of D-glutamic acid and D-alanine, and ADCL converts 4-amino-4-deoxychorismate to p-aminobenzoate and pyruvate. Except for a few enzymes, i. e., Escherichia coli and Salmonella BCATs, which are homohexamers arranged as a double trimer, the class IV PLPDEs are homodimers. Homodimer formation is required for catalytic activity.
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Pssm-ID: 238254 [Multi-domain] Cd Length: 256 Bit Score: 160.07 E-value: 4.97e-47
PyridoxaL 5'-Phosphate Dependent Enzymes class IV (PLPDE_IV). This D-amino acid superfamily, ...
27-339
4.97e-47
PyridoxaL 5'-Phosphate Dependent Enzymes class IV (PLPDE_IV). This D-amino acid superfamily, one of five classes of PLPDE, consists of branched-chain amino acid aminotransferases (BCAT), D-amino acid transferases (DAAT), and 4-amino-4-deoxychorismate lyases (ADCL). BCAT catalyzes the reversible transamination reaction between the L-branched-chain amino and alpha-keto acids. DAAT catalyzes the synthesis of D-glutamic acid and D-alanine, and ADCL converts 4-amino-4-deoxychorismate to p-aminobenzoate and pyruvate. Except for a few enzymes, i. e., Escherichia coli and Salmonella BCATs, which are homohexamers arranged as a double trimer, the class IV PLPDEs are homodimers. Homodimer formation is required for catalytic activity.
Pssm-ID: 238254 [Multi-domain] Cd Length: 256 Bit Score: 160.07 E-value: 4.97e-47
Amino-transferase class IV; The D-amino acid transferases (D-AAT) are required by bacteria to ...
28-291
1.50e-16
Amino-transferase class IV; The D-amino acid transferases (D-AAT) are required by bacteria to catalyze the synthesis of D-glutamic acid and D-alanine, which are essential constituents of bacterial cell wall and are the building block for other D-amino acids. Despite the difference in the structure of the substrates, D-AATs and L-ATTs have strong similarity.
Pssm-ID: 395844 [Multi-domain] Cd Length: 221 Bit Score: 77.40 E-value: 1.50e-16
Branched-chain amino acid aminotransferase/4-amino-4-deoxychorismate lyase [Amino acid transport and metabolism, Coenzyme transport and metabolism]; Branched-chain amino acid aminotransferase/4-amino-4-deoxychorismate lyase is part of the Pathway/BioSystem: Isoleucine, leucine, valine biosynthesis
Pssm-ID: 439885 [Multi-domain] Cd Length: 285 Bit Score: 76.77 E-value: 8.26e-16
PyridoxaL 5'-Phosphate Dependent Enzymes class IV (PLPDE_IV). This D-amino acid superfamily, ...
27-339
4.97e-47
PyridoxaL 5'-Phosphate Dependent Enzymes class IV (PLPDE_IV). This D-amino acid superfamily, one of five classes of PLPDE, consists of branched-chain amino acid aminotransferases (BCAT), D-amino acid transferases (DAAT), and 4-amino-4-deoxychorismate lyases (ADCL). BCAT catalyzes the reversible transamination reaction between the L-branched-chain amino and alpha-keto acids. DAAT catalyzes the synthesis of D-glutamic acid and D-alanine, and ADCL converts 4-amino-4-deoxychorismate to p-aminobenzoate and pyruvate. Except for a few enzymes, i. e., Escherichia coli and Salmonella BCATs, which are homohexamers arranged as a double trimer, the class IV PLPDEs are homodimers. Homodimer formation is required for catalytic activity.
Pssm-ID: 238254 [Multi-domain] Cd Length: 256 Bit Score: 160.07 E-value: 4.97e-47
Amino-transferase class IV; The D-amino acid transferases (D-AAT) are required by bacteria to ...
28-291
1.50e-16
Amino-transferase class IV; The D-amino acid transferases (D-AAT) are required by bacteria to catalyze the synthesis of D-glutamic acid and D-alanine, which are essential constituents of bacterial cell wall and are the building block for other D-amino acids. Despite the difference in the structure of the substrates, D-AATs and L-ATTs have strong similarity.
Pssm-ID: 395844 [Multi-domain] Cd Length: 221 Bit Score: 77.40 E-value: 1.50e-16
Branched-chain amino acid aminotransferase/4-amino-4-deoxychorismate lyase [Amino acid transport and metabolism, Coenzyme transport and metabolism]; Branched-chain amino acid aminotransferase/4-amino-4-deoxychorismate lyase is part of the Pathway/BioSystem: Isoleucine, leucine, valine biosynthesis
Pssm-ID: 439885 [Multi-domain] Cd Length: 285 Bit Score: 76.77 E-value: 8.26e-16
ADCL_like: 4-Amino-4-deoxychorismate lyase: is a member of the fold-type IV of PLP dependent ...
199-299
1.07e-08
ADCL_like: 4-Amino-4-deoxychorismate lyase: is a member of the fold-type IV of PLP dependent enzymes that converts 4-amino-4-deoxychorismate (ADC) to p-aminobenzoate and pyruvate. Based on the information available from the crystal structure, most members of this subgroup are likely to function as dimers. The enzyme from E.Coli, the structure of which is available, is a homodimer that is folded into a small and a larger domain. The coenzyme pyridoxal 5; -phosphate resides at the interface of the two domains that is linked by a flexible loop. Members of this subgroup are found in Eukaryotes and bacteria.
Pssm-ID: 238800 [Multi-domain] Cd Length: 249 Bit Score: 55.39 E-value: 1.07e-08
D-Alanine aminotransferase (D-AAT_like): D-amino acid aminotransferase catalyzes transamination between D-amino acids and their respective alpha-keto acids. It plays a major role in the synthesis of bacterial cell wall components like D-alanine and D-glutamate in addition to other D-amino acids. The enzyme like other members of this superfamily requires PLP as a cofactor. Members of this subgroup are found in all three forms of life.
Pssm-ID: 238799 [Multi-domain] Cd Length: 270 Bit Score: 49.13 E-value: 1.33e-06
BCAT_beta_family: Branched-chain aminotransferase catalyses the transamination of the ...
199-347
3.41e-05
BCAT_beta_family: Branched-chain aminotransferase catalyses the transamination of the branched-chain amino acids leusine, isoleucine and valine to their respective alpha-keto acids, alpha-ketoisocaproate, alpha-keto-beta-methylvalerate and alpha-ketoisovalerate. The enzyme requires pyridoxal 5'-phosphate (PLP) as a cofactor to catalyze the reaction. It has been found that mammals have two foms of the enzyme - mitochondrial and cytosolic forms while bacteria contain only one form of the enzyme. The mitochondrial form plays a significant role in skeletal muscle glutamine and alanine synthesis and in interorgan nitrogen metabolism.Members of this subgroup are widely distributed in all three forms of life.
Pssm-ID: 238798 Cd Length: 279 Bit Score: 44.88 E-value: 3.41e-05
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.
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