amidophosphoribosyltransferase catalyzes the conversion of 5-phosphoribosyl-1-pyrophosphate (PRPP) into 5-phosphoribosyl-1-amine (PRA) by using the ammonia group from a glutamine side-chain, which is the committing step in de novo purine synthesis
Glutamine phosphoribosylpyrophosphate amidotransferase [Nucleotide transport and metabolism]; ...
1-467
1.60e-93
Glutamine phosphoribosylpyrophosphate amidotransferase [Nucleotide transport and metabolism]; Glutamine phosphoribosylpyrophosphate amidotransferase is part of the Pathway/BioSystem: Purine biosynthesis
:
Pssm-ID: 439804 [Multi-domain] Cd Length: 464 Bit Score: 290.77 E-value: 1.60e-93
Glutamine phosphoribosylpyrophosphate amidotransferase [Nucleotide transport and metabolism]; ...
1-467
1.60e-93
Glutamine phosphoribosylpyrophosphate amidotransferase [Nucleotide transport and metabolism]; Glutamine phosphoribosylpyrophosphate amidotransferase is part of the Pathway/BioSystem: Purine biosynthesis
Pssm-ID: 439804 [Multi-domain] Cd Length: 464 Bit Score: 290.77 E-value: 1.60e-93
Glutamine amidotransferases class-II (GN-AT)_GPAT- type. This domain is found at the ...
3-246
7.34e-27
Glutamine amidotransferases class-II (GN-AT)_GPAT- type. This domain is found at the N-terminus of glutamine phosphoribosylpyrophosphate (Prpp) amidotransferase (GPATase) . The glutaminase domain catalyzes amide nitrogen transfer from glutamine to the appropriate substrate. In this process, glutamine is hydrolyzed to glutamic acid and ammonia. GPATase catalyzes the first step in purine biosynthesis, an amide transfer from glutamine to PRPP, resulting in phosphoribosylamine, pyrophosphate and glutamate. GPATase crystalizes as a homotetramer, but can also exist as a homdimer.
Pssm-ID: 238367 [Multi-domain] Cd Length: 252 Bit Score: 108.32 E-value: 7.34e-27
Glutamine amidotransferase domain; This domain is a class-II glutamine amidotransferase domain ...
75-185
2.29e-09
Glutamine amidotransferase domain; This domain is a class-II glutamine amidotransferase domain found in a variety of enzymes such as asparagine synthetase and glutamine-fructose-6-phosphate transaminase.
Pssm-ID: 433289 [Multi-domain] Cd Length: 123 Bit Score: 55.22 E-value: 2.29e-09
Glutamine phosphoribosylpyrophosphate amidotransferase [Nucleotide transport and metabolism]; ...
1-467
1.60e-93
Glutamine phosphoribosylpyrophosphate amidotransferase [Nucleotide transport and metabolism]; Glutamine phosphoribosylpyrophosphate amidotransferase is part of the Pathway/BioSystem: Purine biosynthesis
Pssm-ID: 439804 [Multi-domain] Cd Length: 464 Bit Score: 290.77 E-value: 1.60e-93
Glutamine amidotransferases class-II (GN-AT)_GPAT- type. This domain is found at the ...
3-246
7.34e-27
Glutamine amidotransferases class-II (GN-AT)_GPAT- type. This domain is found at the N-terminus of glutamine phosphoribosylpyrophosphate (Prpp) amidotransferase (GPATase) . The glutaminase domain catalyzes amide nitrogen transfer from glutamine to the appropriate substrate. In this process, glutamine is hydrolyzed to glutamic acid and ammonia. GPATase catalyzes the first step in purine biosynthesis, an amide transfer from glutamine to PRPP, resulting in phosphoribosylamine, pyrophosphate and glutamate. GPATase crystalizes as a homotetramer, but can also exist as a homdimer.
Pssm-ID: 238367 [Multi-domain] Cd Length: 252 Bit Score: 108.32 E-value: 7.34e-27
Phosphoribosyl transferase (PRT)-type I domain; Phosphoribosyl transferase (PRT) domain. The ...
259-386
1.39e-13
Phosphoribosyl transferase (PRT)-type I domain; Phosphoribosyl transferase (PRT) domain. The type I PRTases are identified by a conserved PRPP binding motif which features two adjacent acidic residues surrounded by one or more hydrophobic residue. PRTases catalyze the displacement of the alpha-1'-pyrophosphate of 5-phosphoribosyl-alpha1-pyrophosphate (PRPP) by a nitrogen-containing nucleophile. The reaction products are an alpha-1 substituted ribose-5'-phosphate and a free pyrophosphate (PP). PRPP, an activated form of ribose-5-phosphate, is a key metabolite connecting nucleotide synthesis and salvage pathways. The type I PRTase family includes a range of diverse phosphoribosyl transferase enzymes and regulatory proteins of the nucleotide synthesis and salvage pathways, including adenine phosphoribosyltransferase EC:2.4.2.7., hypoxanthine-guanine-xanthine phosphoribosyltransferase, hypoxanthine phosphoribosyltransferase EC:2.4.2.8., ribose-phosphate pyrophosphokinase EC:2.7.6.1., amidophosphoribosyltransferase EC:2.4.2.14., orotate phosphoribosyltransferase EC:2.4.2.10., uracil phosphoribosyltransferase EC:2.4.2.9., and xanthine-guanine phosphoribosyltransferase EC:2.4.2.22.
Pssm-ID: 206754 [Multi-domain] Cd Length: 130 Bit Score: 67.42 E-value: 1.39e-13
Glutamine amidotransferase domain; This domain is a class-II glutamine amidotransferase domain ...
75-185
2.29e-09
Glutamine amidotransferase domain; This domain is a class-II glutamine amidotransferase domain found in a variety of enzymes such as asparagine synthetase and glutamine-fructose-6-phosphate transaminase.
Pssm-ID: 433289 [Multi-domain] Cd Length: 123 Bit Score: 55.22 E-value: 2.29e-09
Glutamine amidotransferases class-II (Gn-AT)_GFAT-type. This domain is found at the N-terminus ...
3-190
6.53e-07
Glutamine amidotransferases class-II (Gn-AT)_GFAT-type. This domain is found at the N-terminus of glucosamine-6P synthase (GlmS, or GFAT in humans). The glutaminase domain catalyzes amide nitrogen transfer from glutamine to the appropriate substrate. In this process, glutamine is hydrolyzed to glutamic acid and ammonia. In humans, GFAT catalyzes the first and rate-limiting step of hexosamine metabolism, the conversion of D-fructose-6P (Fru6P) into D-glucosamine-6P using L-glutamine as a nitrogen source. The end product of this pathway, UDP-N-acetyl glucosamine, is a major building block of the bacterial peptidoglycan and fungal chitin.
Pssm-ID: 238366 [Multi-domain] Cd Length: 215 Bit Score: 50.14 E-value: 6.53e-07
Glutamine amidotransferases class-II (Gn-AT)_GlxB-type. GlxB is a glutamine ...
116-215
1.29e-05
Glutamine amidotransferases class-II (Gn-AT)_GlxB-type. GlxB is a glutamine amidotransferase-like protein of unknown function found in bacteria and archaea. GlxB has a structural fold similar to that of other class II glutamine amidotransferases including glucosamine-fructose 6-phosphate synthase (GLMS or GFAT), glutamine phosphoribosylpyrophosphate (Prpp) amidotransferase (GPATase), asparagine synthetase B (AsnB), beta lactam synthetase (beta-LS) and glutamate synthase (GltS). The GlxB fold is also somewhat similar to the Ntn (N-terminal nucleophile) hydrolase fold of the proteasomal alpha and beta subunits.
Pssm-ID: 238888 [Multi-domain] Cd Length: 249 Bit Score: 46.49 E-value: 1.29e-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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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