Inosine monophosphate cyclohydrolase domain. This is the N-terminal domain in the purine ...
5-193
3.30e-109
Inosine monophosphate cyclohydrolase domain. This is the N-terminal domain in the purine biosynthesis pathway protein ATIC (purH). The bifunctional ATIC protein contains a C-terminal ATIC formylase domain that formylates 5-aminoimidazole-4-carboxamide-ribonucleotide. The IMPCH domain then converts the formyl-5-aminoimidazole-4-carboxamide-ribonucleotide to inosine monophosphate. This is the final step in de novo purine production.
:
Pssm-ID: 238709 [Multi-domain] Cd Length: 187 Bit Score: 324.94 E-value: 3.30e-109
AICAR transformylase/IMP cyclohydrolase PurH [Nucleotide transport and metabolism]; AICAR ...
7-592
0e+00
AICAR transformylase/IMP cyclohydrolase PurH [Nucleotide transport and metabolism]; AICAR transformylase/IMP cyclohydrolase PurH is part of the Pathway/BioSystem: Purine biosynthesis
Pssm-ID: 439908 Cd Length: 512 Bit Score: 521.89 E-value: 0e+00
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two ...
135-462
2.32e-137
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two steps in de novo purine biosynthesis. The bifunctional enzyme is found in both prokaryotes and eukaryotes. The second last step is catalysed by 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase (AICARFT), this enzyme catalyses the formylation of AICAR with 10-formyl-tetrahydrofolate to yield FAICAR and tetrahydrofolate. The last step is catalysed by IMP (Inosine monophosphate) cyclohydrolase (IMPCHase), cyclizing FAICAR (5-formylaminoimidazole-4-carboxamide ribonucleotide) to IMP.
Pssm-ID: 214822 Cd Length: 311 Bit Score: 401.87 E-value: 2.32e-137
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two ...
135-461
8.02e-132
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two steps in de novo purine biosynthesis. The bifunctional enzyme is found in both prokaryotes and eukaryotes. The second last step is catalyzed by 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase EC:2.1.2.3 (AICARFT), this enzyme catalyzes the formylation of AICAR with 10-formyl-tetrahydrofolate to yield FAICAR and tetrahydrofolate. This is catalyzed by a pair of C-terminal deaminase fold domains in the protein, where the active site is formed by the dimeric interface of two monomeric units. The last step is catalyzed by the N-terminal IMP (Inosine monophosphate) cyclohydrolase domain EC:3.5.4.10 (IMPCHase), cyclizing FAICAR (5-formylaminoimidazole-4-carboxamide ribonucleotide) to IMP.
Pssm-ID: 460341 Cd Length: 308 Bit Score: 387.53 E-value: 8.02e-132
Inosine monophosphate cyclohydrolase domain. This is the N-terminal domain in the purine ...
5-193
3.30e-109
Inosine monophosphate cyclohydrolase domain. This is the N-terminal domain in the purine biosynthesis pathway protein ATIC (purH). The bifunctional ATIC protein contains a C-terminal ATIC formylase domain that formylates 5-aminoimidazole-4-carboxamide-ribonucleotide. The IMPCH domain then converts the formyl-5-aminoimidazole-4-carboxamide-ribonucleotide to inosine monophosphate. This is the final step in de novo purine production.
Pssm-ID: 238709 [Multi-domain] Cd Length: 187 Bit Score: 324.94 E-value: 3.30e-109
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the ...
16-130
9.79e-24
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the domain is also found in Carbamoyl phosphate synthetase (CPS) where it forms a regulatory domain that binds to the allosteric effector ornithine. This family also includes inosicase. The known structures in this family show a common phosphate binding site.
Pssm-ID: 214855 [Multi-domain] Cd Length: 91 Bit Score: 95.23 E-value: 9.79e-24
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the ...
16-130
2.49e-23
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the domain is also found in Carbamoyl phosphate synthetase (CPS) where it forms a regulatory domain that binds to the allosteric effector ornithine. This family also includes inosicase. The known structures in this family show a common phosphate binding site.
Pssm-ID: 460462 [Multi-domain] Cd Length: 93 Bit Score: 94.48 E-value: 2.49e-23
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes ...
12-97
6.79e-04
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes the first committed step in pyrimidine, arginine, and urea biosynthesis. In general, it is a glutamine-dependent enzyme, EC 6.3.5.5, termed CPSase II in eukaryotes. An exception is the mammalian mitochondrial urea-cycle form, CPSase I, in which the glutamine amidotransferase domain active site Cys on the small subunit has been lost, and the enzyme is ammonia-dependent. In both CPSase I and the closely related, glutamine-dependent CPSase III (allosterically activated by acetyl-glutamate) demonstrated in some other vertebrates, the small and large chain regions are fused in a single polypeptide chain. This model represents the large chain of glutamine-hydrolysing carbamoyl-phosphate synthases, or the corresponding regions of larger, multifunctional proteins, as found in all domains of life, and CPSase I forms are considered exceptions within the family. In several thermophilic species (Methanobacterium thermoautotrophicum, Methanococcus jannaschii, Aquifex aeolicus), the large subunit appears split, at different points, into two separate genes. [Purines, pyrimidines, nucleosides, and nucleotides, Pyrimidine ribonucleotide biosynthesis]
Pssm-ID: 273581 [Multi-domain] Cd Length: 1050 Bit Score: 42.68 E-value: 6.79e-04
AICAR transformylase/IMP cyclohydrolase PurH [Nucleotide transport and metabolism]; AICAR ...
7-592
0e+00
AICAR transformylase/IMP cyclohydrolase PurH [Nucleotide transport and metabolism]; AICAR transformylase/IMP cyclohydrolase PurH is part of the Pathway/BioSystem: Purine biosynthesis
Pssm-ID: 439908 Cd Length: 512 Bit Score: 521.89 E-value: 0e+00
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two ...
135-462
2.32e-137
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two steps in de novo purine biosynthesis. The bifunctional enzyme is found in both prokaryotes and eukaryotes. The second last step is catalysed by 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase (AICARFT), this enzyme catalyses the formylation of AICAR with 10-formyl-tetrahydrofolate to yield FAICAR and tetrahydrofolate. The last step is catalysed by IMP (Inosine monophosphate) cyclohydrolase (IMPCHase), cyclizing FAICAR (5-formylaminoimidazole-4-carboxamide ribonucleotide) to IMP.
Pssm-ID: 214822 Cd Length: 311 Bit Score: 401.87 E-value: 2.32e-137
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two ...
135-461
8.02e-132
AICARFT/IMPCHase bienzyme; This is a family of bifunctional enzymes catalysing the last two steps in de novo purine biosynthesis. The bifunctional enzyme is found in both prokaryotes and eukaryotes. The second last step is catalyzed by 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase EC:2.1.2.3 (AICARFT), this enzyme catalyzes the formylation of AICAR with 10-formyl-tetrahydrofolate to yield FAICAR and tetrahydrofolate. This is catalyzed by a pair of C-terminal deaminase fold domains in the protein, where the active site is formed by the dimeric interface of two monomeric units. The last step is catalyzed by the N-terminal IMP (Inosine monophosphate) cyclohydrolase domain EC:3.5.4.10 (IMPCHase), cyclizing FAICAR (5-formylaminoimidazole-4-carboxamide ribonucleotide) to IMP.
Pssm-ID: 460341 Cd Length: 308 Bit Score: 387.53 E-value: 8.02e-132
Inosine monophosphate cyclohydrolase domain. This is the N-terminal domain in the purine ...
5-193
3.30e-109
Inosine monophosphate cyclohydrolase domain. This is the N-terminal domain in the purine biosynthesis pathway protein ATIC (purH). The bifunctional ATIC protein contains a C-terminal ATIC formylase domain that formylates 5-aminoimidazole-4-carboxamide-ribonucleotide. The IMPCH domain then converts the formyl-5-aminoimidazole-4-carboxamide-ribonucleotide to inosine monophosphate. This is the final step in de novo purine production.
Pssm-ID: 238709 [Multi-domain] Cd Length: 187 Bit Score: 324.94 E-value: 3.30e-109
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the ...
16-130
9.79e-24
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the domain is also found in Carbamoyl phosphate synthetase (CPS) where it forms a regulatory domain that binds to the allosteric effector ornithine. This family also includes inosicase. The known structures in this family show a common phosphate binding site.
Pssm-ID: 214855 [Multi-domain] Cd Length: 91 Bit Score: 95.23 E-value: 9.79e-24
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the ...
16-130
2.49e-23
MGS-like domain; This domain composes the whole protein of methylglyoxal synthetase and the domain is also found in Carbamoyl phosphate synthetase (CPS) where it forms a regulatory domain that binds to the allosteric effector ornithine. This family also includes inosicase. The known structures in this family show a common phosphate binding site.
Pssm-ID: 460462 [Multi-domain] Cd Length: 93 Bit Score: 94.48 E-value: 2.49e-23
MGS-like domain. This domain composes the whole protein of methylglyoxal synthetase, which ...
6-151
8.88e-19
MGS-like domain. This domain composes the whole protein of methylglyoxal synthetase, which catalyzes the enolization of dihydroxyacetone phosphate (DHAP) to produce methylglyoxal. The family also includes the C-terminal domain in carbamoyl phosphate synthetase (CPS) where it catalyzes the last phosphorylation of a coaboxyphosphate intermediate to form the product carbamoyl phosphate and may also play a regulatory role. This family also includes inosine monophosphate cyclohydrolase. The known structures in this family show a common phosphate binding site.
Pssm-ID: 238297 [Multi-domain] Cd Length: 112 Bit Score: 82.17 E-value: 8.88e-19
Methylglyoxal synthase-like domain from type II glutamine-dependent carbamoyl phosphate ...
7-51
1.16e-08
Methylglyoxal synthase-like domain from type II glutamine-dependent carbamoyl phosphate synthetase (CSP). CSP, a CarA and CarB heterodimer, catalyzes the production of carbamoyl phosphate which is subsequently employed in the metabolic pathways responsible for the synthesis of pyrimidine nucleotides or arginine. The MGS-like domain is the C-terminal domain of CarB and appears to play a regulatory role in CPS function by binding allosteric effector molecules, including UMP and ornithine.
Pssm-ID: 238712 [Multi-domain] Cd Length: 110 Bit Score: 53.25 E-value: 1.16e-08
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes ...
12-97
6.79e-04
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes the first committed step in pyrimidine, arginine, and urea biosynthesis. In general, it is a glutamine-dependent enzyme, EC 6.3.5.5, termed CPSase II in eukaryotes. An exception is the mammalian mitochondrial urea-cycle form, CPSase I, in which the glutamine amidotransferase domain active site Cys on the small subunit has been lost, and the enzyme is ammonia-dependent. In both CPSase I and the closely related, glutamine-dependent CPSase III (allosterically activated by acetyl-glutamate) demonstrated in some other vertebrates, the small and large chain regions are fused in a single polypeptide chain. This model represents the large chain of glutamine-hydrolysing carbamoyl-phosphate synthases, or the corresponding regions of larger, multifunctional proteins, as found in all domains of life, and CPSase I forms are considered exceptions within the family. In several thermophilic species (Methanobacterium thermoautotrophicum, Methanococcus jannaschii, Aquifex aeolicus), the large subunit appears split, at different points, into two separate genes. [Purines, pyrimidines, nucleosides, and nucleotides, Pyrimidine ribonucleotide biosynthesis]
Pssm-ID: 273581 [Multi-domain] Cd Length: 1050 Bit Score: 42.68 E-value: 6.79e-04
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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