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 1CWY | pdb_00001cwy

CRYSTAL STRUCTURE OF AMYLOMALTASE FROM THERMUS AQUATICUS, A GLYCOSYLTRANSFERASE CATALYSING THE PRODUCTION OF LARGE CYCLIC GLUCANS

External Resource: Annotation


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1cwya_ Alpha and beta proteins (a/b) TIM beta/alpha-barrel (Trans)glycosidases Amylase, catalytic domain Amylomaltase MalQ (Thermus aquaticus ) [TaxId: 271 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B Superfamily(Trans)glycosidases 8032805 3000313 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ANAD_binding_3e1cwyA1 A: alpha arraysX: C-terminal subdomain in Lon-related proteases catalytic domainsH: C-terminal subdomain in Lon-related proteases catalytic domainsT: C-terminal subdomain in Lon-related proteases catalytic domainsF: NAD_binding_3ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.20.20.80 Alpha Beta Alpha-Beta Barrel TIM Barrel GlycosidasesCATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
AMYLOMALTASE

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR017853Glycoside hydrolase superfamilyHomologous Superfamily
IPR003385Glycoside hydrolase, family 77Family

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

ChainsEnzyme NameDescriptionCatalytic Residues
4-alpha-glucanotransferase  M-CSA #479

Amylomaltase enzymes are structurally and mechanistically related to alpha amylases, although they almost exclusively catalyse trans-glycosylation reactions whereas alpha amylase enzymes catalyse hydrolysis reactions. The amylomaltase enzyme catalyses amylose disproportionation and the synthesis of large cyclic glucans, making these enzymes of interest to chemical and pharmaceutical industries.

Defined by 3 residues: ASP:A-293GLU:A-340ASP:A-395
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Explore in 3D: M-CSA Motif Definition
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EC: 2.4.1.25 (PDB Primary Data)