>2bszA (A:) observed residues (from ATOM records)
pfdldaylarigytgprnasldtlkalhfahpqaipfenidpflgrpvrldlaalqdkiv
lggrggycfehnllfmhalkalgfevgglaarvlwgqsedaitarshmllrveldgrtyi
advgfggltltaplllepgreqktphepfriveaddhfrlqaaiggdwrslyrfdlqpqy
evdysvtnyflstsptshflssviaaraapdrryalrgnrlsihhlteqteiataadlad
tlqgllgiiipdrtafeakvretkive