>4f53A (A:) observed residues (from ATOM records)
vdwylvrslalnlqdlmmpeqenfsqyvdclmagafsgyvadsnlgtgwsgryatynpsd
dwkkipfndfyskfypdyfnlknqsddelflslaelyrivvmlrvtdtygpipyskvgaa
naikspydsqqavyakmledldniitvlgkfgnqsfsssadriyngntsawykfanslkl
rmamrtcyvagfnvngktsqqlaeeavaagvmtaatdgayrkvadhnpwqrfmvlwsdar
isadltcymnayndprreayydkstfgtvsgnaytgeesyvglrrgilqgqynswsqgss
cmkvttsdnivvfrasevaflraegalrnwnmggtakdfyeegirlsfeengitsgveny
lastgkveaykdplkgqsaqtydysgaintnvtvawsggdfeksleqiitqkwianfpng
meswteyrrtgypklmpmaanasggivndaegarrmpyptdeyrenresveaavatltqe
sktkrgdtmathvwwdck