3eqa

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3eqa, resolution 1.90Å ()
Ligands: , , , ,
Activity: Glucan 1,4-alpha-glucosidase, with EC number 3.2.1.3
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



Catalytic domain of glucoamylase from aspergillus niger complexed with tris and glycerol

Publication Abstract from PubMed

Glucoamylase from Aspergillus niger is an industrially important biocatalyst that is utilized in the mass production of glucose from raw starch or soluble oligosaccharides. The G1 isoform consists of a catalytic domain and a starch-binding domain connected by a heavily glycosylated linker region. The amino-terminal catalytic domain of the G1 isoform generated by subtilisin cleavage has been crystallized at pH 8.5, which is a significantly higher pH condition than used for previously characterized glucoamylase crystals. The refined structure at 1.9 A resolution reveals the active site of the enzyme in complex with both Tris and glycerol molecules. The ligands display both unique and analogous interactions with the substrate-binding site when compared with previous structures of homologous enzymes bound to inhibitors.

Structure of the catalytic domain of glucoamylase from Aspergillus niger., Lee J, Paetzel M, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Feb 1;67(Pt, 2):188-92. Epub 2011 Jan 21. PMID:21301084

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

About this Structure

3eqa is a 1 chain structure with sequence from Aspergillus niger. Full crystallographic information is available from OCA.

Reference

  • Lee J, Paetzel M. Structure of the catalytic domain of glucoamylase from Aspergillus niger. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Feb 1;67(Pt, 2):188-92. Epub 2011 Jan 21. PMID:21301084 doi:10.1107/S1744309110049390

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