1wza

From Proteopedia

Crystal structure of alpha-amylase from H.orenii

PDB ID 1wza

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Structural highlights

1wza is a 1 chain structure with sequence from Halothermothrix orenii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.6Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q8GPL8_9FIRM

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

Here we report the first crystal structure of a protein, AmyA, a secretory alpha-amylase isolated from Halothermothrix orenii, which is both halophilic and thermophilic. The crystal structure was determined at 1.6 A resolution. AmyA lacks the conserved acidic surface, which is considered essential for protein stability at high salinity. Sedimentation velocity and CD experiments on AmyA reveal the formation of unique reversible poly-dispersed oligomers that show unusually high thermal stability. These studies provide valuable insight into the structural elements that contribute to the stability of AmyA at both physical and chemical extremes and their functional implications.

Crystal structure of AmyA lacks acidic surface and provide insights into protein stability at poly-extreme condition.,Sivakumar N, Li N, Tang JW, Patel BK, Swaminathan K FEBS Lett. 2006 May 15;580(11):2646-52. Epub 2006 Apr 19. PMID:16647060^[1]

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

References

↑ Sivakumar N, Li N, Tang JW, Patel BK, Swaminathan K. Crystal structure of AmyA lacks acidic surface and provide insights into protein stability at poly-extreme condition. FEBS Lett. 2006 May 15;580(11):2646-52. Epub 2006 Apr 19. PMID:16647060 doi:10.1016/j.febslet.2006.04.017