>4f53B (B:) observed residues (from ATOM records)
vdwylvrslalnlqdlmmpeqenfsqyvdclmagafsgyvadsnlgtgwsgryatynpsd
dwkkipfndfyskfypdyfnlknqsddelflslaelyrivvmlrvtdtygpipyskvgaa
naikspydsqqavyakmledldniitvlgkfgnqsfsssadriyngntsawykfanslkl
rmamrtcyvagfnvngktsqqlaeeavaagvmtaatdgayrkvadhnpwqrfmvlwsdar
isadltcymnayndprreayydkstfgtvsgnaytgeesyvglrrgilqgqynswsqgss
cmkvttsdnivvfrasevaflraegalrnwnmggtakdfyeegirlsfeengitsgveny
lastgkveaykdplkgqsaqtydysgaintnvtvawsggdfeksleqiitqkwianfpng
meswteyrrtgypklmpmaanasggivndaegarrmpyptdeyrenresveaavatltqe
sktkrgdtmathvwwdck