>4a6uB (B:) observed residues (from ATOM records)
rvmtrgegvylwdsegnkiidgmaglwcvnvgygrkdfaeaarrqmeelpfyntffktth
pavvelssllaevtpagfdrvfytnsgsesvdtmirmvrrywdvqgkpekktligrwngm
ahieqpwwykhgkdmtpdefgvvaarwleekileigadkvaafvgepiqgaggvivppat
ywpeiericrkydvllvadevicgfgrtgewfghqhfgfqpdlftaakglssgylpigav
fvgkrvaegltysghpvcaavahanvaalrdegivqrvkddigpymqkrwretfsrfehv
ddvrgvgmvqaftlvknkakrelfpdfgeigtlcrdiffrnnlimracgdhivsapplvm
traevdemlavaercleefeqtlkargla