id author title date pages extension mime words sentence flesch summary cache txt wh246q20m35 Jonathan Paul Renn Folding and Secretion of the E. coli Pet Autotransporter 2010 .txt text/plain 477 16 41 Yet more than 97% of AT proteins are predicted to contain right-handed parallel β-helical structure, and the four of the five crystal structures available for AT passenger domains each contain a long right-handed parallel β-helix. Stable core structure in the β-helix of AT passenger domains could be important for efficient OM secretion of the passenger domain. cache/wh246q20m35.txt txt/wh246q20m35.txt