Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1ct9a1 Alpha and beta proteins (a/b) Adenine nucleotide alpha hydrolase-like Adenine nucleotide alpha hydrolases-like N-type ATP pyrophosphatases Asparagine synthetase B, C-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Ad1ct9a2 Alpha and beta proteins (a+b) Ntn hydrolase-like N-terminal nucleophile aminohydrolases (Ntn hydrolases) Class II glutamine amidotransferases Asparagine synthetase B, N-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Bd1ct9b1 Alpha and beta proteins (a/b) Adenine nucleotide alpha hydrolase-like Adenine nucleotide alpha hydrolases-like N-type ATP pyrophosphatases Asparagine synthetase B, C-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Bd1ct9b2 Alpha and beta proteins (a+b) Ntn hydrolase-like N-terminal nucleophile aminohydrolases (Ntn hydrolases) Class II glutamine amidotransferases Asparagine synthetase B, N-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Cd1ct9c1 Alpha and beta proteins (a/b) Adenine nucleotide alpha hydrolase-like Adenine nucleotide alpha hydrolases-like N-type ATP pyrophosphatases Asparagine synthetase B, C-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Cd1ct9c2 Alpha and beta proteins (a+b) Ntn hydrolase-like N-terminal nucleophile aminohydrolases (Ntn hydrolases) Class II glutamine amidotransferases Asparagine synthetase B, N-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Dd1ct9d1 Alpha and beta proteins (a/b) Adenine nucleotide alpha hydrolase-like Adenine nucleotide alpha hydrolases-like N-type ATP pyrophosphatases Asparagine synthetase B, C-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)
Dd1ct9d2 Alpha and beta proteins (a+b) Ntn hydrolase-like N-terminal nucleophile aminohydrolases (Ntn hydrolases) Class II glutamine amidotransferases Asparagine synthetase B, N-terminal domain (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyAlpha subunit of glutamate synthase, GAT domain-like 8024378 4000340 SCOP2 (2022-06-29)
ASCOP2 FamilyN-type ATP pyrophosphatases 8031830 4003831 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyClass II glutamine amidotransferases 8036757 3000131 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyAdenine nucleotide alpha hydrolases-like 8044208 3001593 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyClass II glutamine amidotransferases 8036757 3000131 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyAdenine nucleotide alpha hydrolases-like 8044208 3001593 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyClass II glutamine amidotransferases 8036757 3000131 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyAdenine nucleotide alpha hydrolases-like 8044208 3001593 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyClass II glutamine amidotransferases 8036757 3000131 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyAdenine nucleotide alpha hydrolases-like 8044208 3001593 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AUNK_F_TYPEe1ct9A1 A: a+b four layersX: Ntn/PP2CH: NtnT: Class II glutamine amidotransferasesF: UNK_F_TYPEECOD (1.6)
AAsn_synthasee1ct9A2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: Asn_synthaseECOD (1.6)
BUNK_F_TYPEe1ct9B1 A: a+b four layersX: Ntn/PP2CH: NtnT: Class II glutamine amidotransferasesF: UNK_F_TYPEECOD (1.6)
BAsn_synthasee1ct9B2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: Asn_synthaseECOD (1.6)
CUNK_F_TYPEe1ct9C1 A: a+b four layersX: Ntn/PP2CH: NtnT: Class II glutamine amidotransferasesF: UNK_F_TYPEECOD (1.6)
CAsn_synthasee1ct9C2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: Asn_synthaseECOD (1.6)
DUNK_F_TYPEe1ct9D1 A: a+b four layersX: Ntn/PP2CH: NtnT: Class II glutamine amidotransferasesF: UNK_F_TYPEECOD (1.6)
DAsn_synthasee1ct9D2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: Asn_synthaseECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D
PF00733Asparagine synthase (Asn_synthase)Asparagine synthaseThis family is always found associated with Pfam:PF00310. Members of this family catalyse the conversion of aspartate to asparagine.Domain
A, B, C, D
PF13537Glutamine amidotransferase domain (GATase_7)Glutamine amidotransferase domainThis domain is a class-II glutamine amidotransferase domain found in a variety of enzymes such as asparagine synthetase and glutamine-fructose-6-phosphate transaminase.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D
ASPARAGINE SYNTHETASE B

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
asparagine synthase (glutamine-hydrolysing)  M-CSA #302

Asparagine synthetase B catalyses the ATP dependent formation of asparagine from aspartate using either glutamine or ammonia as a nitrogen source. The enzyme is a homodimer with two active sites [PMID:10587437] in each subunit, one responsible for glutamine hydrolysis and one for asparagine synthesis, separated by a hydrophobic intramolecular tunnel around 20A long [PMID:12706338]. Sequencing analysis has shown the synthetase to belong to the larger glutamine transferase family.

Defined by 6 residues: ALA:A-1LEU:A-50ASN:A-74GLY:A-75THR:A-321ARG:A-324
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Explore in 3DM-CSA Motif Definition
Extent of motif is too large to support Structure Motif searching.
EC: 6.3.5.4 (PDB Primary Data)