carbamoyl-phosphate synthase (CPSase) large subunit family protein; CPSase catalyzes the first committed step in pyrimidine, arginine, and urea biosynthesis
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes ...
2-212
1.53e-142
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]
The actual alignment was detected with superfamily member TIGR01369:
Pssm-ID: 273581 [Multi-domain] Cd Length: 1050 Bit Score: 423.64 E-value: 1.53e-142
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes ...
2-212
1.53e-142
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: 423.64 E-value: 1.53e-142
Carbamoylphosphate synthase large subunit [Amino acid transport and metabolism, Nucleotide ...
2-210
2.85e-112
Carbamoylphosphate synthase large subunit [Amino acid transport and metabolism, Nucleotide transport and metabolism]; Carbamoylphosphate synthase large subunit is part of the Pathway/BioSystem: Arginine biosynthesis
Pssm-ID: 440226 [Multi-domain] Cd Length: 536 Bit Score: 331.07 E-value: 2.85e-112
Carbamoyl-phosphate synthase L chain, ATP binding domain; Carbamoyl-phosphate synthase ...
2-169
6.52e-97
Carbamoyl-phosphate synthase L chain, ATP binding domain; Carbamoyl-phosphate synthase catalyzes the ATP-dependent synthesis of carbamyl-phosphate from glutamine or ammonia and bicarbonate. This important enzyme initiates both the urea cycle and the biosynthesis of arginine and/or pyrimidines. The carbamoyl-phosphate synthase (CPS) enzyme in prokaryotes is a heterodimer of a small and large chain. The small chain promotes the hydrolysis of glutamine to ammonia, which is used by the large chain to synthesize carbamoyl phosphate. See pfam00988. The small chain has a GATase domain in the carboxyl terminus. See pfam00117. The ATP binding domain (this one) has an ATP-grasp fold.
Pssm-ID: 397079 [Multi-domain] Cd Length: 209 Bit Score: 280.73 E-value: 6.52e-97
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes ...
2-212
1.53e-142
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: 423.64 E-value: 1.53e-142
Carbamoylphosphate synthase large subunit [Amino acid transport and metabolism, Nucleotide ...
2-210
2.85e-112
Carbamoylphosphate synthase large subunit [Amino acid transport and metabolism, Nucleotide transport and metabolism]; Carbamoylphosphate synthase large subunit is part of the Pathway/BioSystem: Arginine biosynthesis
Pssm-ID: 440226 [Multi-domain] Cd Length: 536 Bit Score: 331.07 E-value: 2.85e-112
Carbamoyl-phosphate synthase L chain, ATP binding domain; Carbamoyl-phosphate synthase ...
2-169
6.52e-97
Carbamoyl-phosphate synthase L chain, ATP binding domain; Carbamoyl-phosphate synthase catalyzes the ATP-dependent synthesis of carbamyl-phosphate from glutamine or ammonia and bicarbonate. This important enzyme initiates both the urea cycle and the biosynthesis of arginine and/or pyrimidines. The carbamoyl-phosphate synthase (CPS) enzyme in prokaryotes is a heterodimer of a small and large chain. The small chain promotes the hydrolysis of glutamine to ammonia, which is used by the large chain to synthesize carbamoyl phosphate. See pfam00988. The small chain has a GATase domain in the carboxyl terminus. See pfam00117. The ATP binding domain (this one) has an ATP-grasp fold.
Pssm-ID: 397079 [Multi-domain] Cd Length: 209 Bit Score: 280.73 E-value: 6.52e-97
carbamoyl-phosphate synthase, large subunit; Carbamoyl-phosphate synthase (CPSase) catalyzes ...
2-210
1.26e-34
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: 129.73 E-value: 1.26e-34
ATP-grasp in the biosynthetic pathway with Ter operon; This ATP-grasp family is related to ...
105-177
1.32e-05
ATP-grasp in the biosynthetic pathway with Ter operon; This ATP-grasp family is related to carbamoyl phosphate synthetase. These genes are found in the biosynthetic operon associated with the Ter stress response operon and are predicted to be involved in the biosynthesis of a ribo-nucleoside involved in stress response.
Pssm-ID: 434824 [Multi-domain] Cd Length: 131 Bit Score: 42.98 E-value: 1.32e-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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