PDB: 1b6s Compound: n5-carboxyaminoimidazole ribonucleotide synthetase Classification: LYASE Entry date in PDB: 1999-11-30 Resolution [Å]: 2.50 R-Factor: 0.185

CHAIN: A SWISS-PROT/TREMBL: P09029    KEYWORD: 3D-structure    Complete proteome    Decarboxylase    Lyase    Purine biosynthesis    EC: 4.1.1.21 SCOP: b.84.2.1 All beta proteins    Barrel-sandwich hybrid    Rudiment single hybrid motif    BC C-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), C-domain    Escherichia coli SCOP: c.30.1.1 Alpha and beta proteins (a/b)    PreATP-grasp domain    PreATP-grasp domain    BC N-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), N-domain    Escherichia coli SCOP: d.142.1.2 Alpha and beta proteins (a+b)    ATP-grasp    Glutathione synthetase ATP-binding domain-like    BC ATP-binding domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), domain 2    Escherichia coli GO:  phosphoribosylaminoimidazole carboxylase complex    catalytic activity    phosphoribosylaminoimidazole carboxylase activity    'de novo' IMP biosynthesis    CHAIN: B SWISS-PROT/TREMBL: P09029    KEYWORD: 3D-structure    Complete proteome    Decarboxylase    Lyase    Purine biosynthesis    EC: 4.1.1.21 SCOP: b.84.2.1 All beta proteins    Barrel-sandwich hybrid    Rudiment single hybrid motif    BC C-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), C-domain    Escherichia coli SCOP: c.30.1.1 Alpha and beta proteins (a/b)    PreATP-grasp domain    PreATP-grasp domain    BC N-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), N-domain    Escherichia coli SCOP: d.142.1.2 Alpha and beta proteins (a+b)    ATP-grasp    Glutathione synthetase ATP-binding domain-like    BC ATP-binding domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), domain 2    Escherichia coli GO:  phosphoribosylaminoimidazole carboxylase complex    catalytic activity    phosphoribosylaminoimidazole carboxylase activity    'de novo' IMP biosynthesis    CHAIN: C SWISS-PROT/TREMBL: P09029    KEYWORD: 3D-structure    Complete proteome    Decarboxylase    Lyase    Purine biosynthesis    EC: 4.1.1.21 SCOP: b.84.2.1 All beta proteins    Barrel-sandwich hybrid    Rudiment single hybrid motif    BC C-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), C-domain    Escherichia coli SCOP: c.30.1.1 Alpha and beta proteins (a/b)    PreATP-grasp domain    PreATP-grasp domain    BC N-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), N-domain    Escherichia coli SCOP: d.142.1.2 Alpha and beta proteins (a+b)    ATP-grasp    Glutathione synthetase ATP-binding domain-like    BC ATP-binding domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), domain 2    Escherichia coli GO:  phosphoribosylaminoimidazole carboxylase complex    catalytic activity    phosphoribosylaminoimidazole carboxylase activity    'de novo' IMP biosynthesis    CHAIN: D SWISS-PROT/TREMBL: P09029    KEYWORD: 3D-structure    Complete proteome    Decarboxylase    Lyase    Purine biosynthesis    EC: 4.1.1.21 SCOP: b.84.2.1 All beta proteins    Barrel-sandwich hybrid    Rudiment single hybrid motif    BC C-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), C-domain    Escherichia coli SCOP: c.30.1.1 Alpha and beta proteins (a/b)    PreATP-grasp domain    PreATP-grasp domain    BC N-terminal domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), N-domain    Escherichia coli SCOP: d.142.1.2 Alpha and beta proteins (a+b)    ATP-grasp    Glutathione synthetase ATP-binding domain-like    BC ATP-binding domain-like    N5-carboxyaminoimidazole ribonucleotide synthetase PurK (AIRC), domain 2    Escherichia coli GO:  phosphoribosylaminoimidazole carboxylase complex    catalytic activity    phosphoribosylaminoimidazole carboxylase activity    'de novo' IMP biosynthesis

Image Source: PDB

1b6r A - percentage of sequence identity: 99