1mtp | pdb_00001mtp

The X-ray crystal structure of a serpin from a thermophilic prokaryote

spinqualitylabelsall models 1mtp, resolution 1.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1mtp is a 2 chain structure with sequence from "thermonospora_fusca"_henssen_1957 "thermonospora fusca" henssen 1957. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT 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 Serpins utilize conformational change to inhibit target proteinases; the price paid for this conformational flexibility is that many undergo temperature-induced polymerization. Despite this thermolability, serpins are present in the genomes of thermophilic prokaryotes, and here we characterize the first such serpin, thermopin. Thermopin is a proteinase inhibitor and, in comparison with human alpha(1)-antitrypsin, possesses enhanced stability at 60 degrees C. The 1.5 A crystal structure reveals novel structural features in regions implicated in serpin folding and stability. Thermopin possesses a C-terminal "tail" that interacts with the top of the A beta sheet and plays an important role in the folding/unfolding of the molecule. These data provide evidence as to how this unusual serpin has adapted to fold and function in a heated environment. The 1.5 A crystal structure of a prokaryote serpin: controlling conformational change in a heated environment.,Irving JA, Cabrita LD, Rossjohn J, Pike RN, Bottomley SP, Whisstock JC Structure. 2003 Apr;11(4):387-97. PMID:12679017 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Serpin 3D structures

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