1lf6

CRYSTAL STRUCTURE OF BACTERIAL GLUCOAMYLASECRYSTAL STRUCTURE OF BACTERIAL GLUCOAMYLASE

Structural highlights 1lf6 is a 2 chain structure with sequence from Thermoanaerobacterium thermosaccharolyticum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: Related: 1ayx, 3gly, 1lf9 Activity: Glucan 1,4-alpha-glucosidase, with EC number 3.2.1.3 Resources: FirstGlance, OCA, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The first crystal structures of a two-domain, prokaryotic glucoamylase were determined to high resolution from the clostridial species Thermoanaerobacterium thermosaccharolyticum with and without acarbose. The N-terminal domain has 18 antiparallel strands arranged in beta-sheets of a super-beta-sandwich. The C-terminal domain is an (alpha/alpha)(6) barrel, lacking the peripheral subdomain of eukaryotic glucoamylases. Interdomain contacts are common to all prokaryotic Family GH15 proteins. Domains similar to those of prokaryotic glucoamylases in maltose phosphorylases (Family GH65) and glycoaminoglycan lyases (Family PL8) suggest evolution from a common ancestor. Eukaryotic glucoamylases may have evolved from prokaryotic glucoamylases by the substitution of the N-terminal domain with the peripheral subdomain and by the addition of a starch-binding domain. Crystal structure and evolution of a prokaryotic glucoamylase.,Aleshin AE, Feng PH, Honzatko RB, Reilly PJ J Mol Biol. 2003 Mar 14;327(1):61-73. PMID:12614608 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Amylase User:Gabriel Pons/Sandbox 2

spinqualitylabelsall models 1lf6, resolution 2.10Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image