>4y64A (A:) observed residues (from ATOM records)
vslprmvypqpkvltpcrkdvlvvtpwlapivwegtfnidilneqfrlqnttigltvfai
kkyvaflklfletaekhfmvghrvhyyvftdqpaavprvtlgtgrqlsvlevraykrwqd
vsmrrmemisdfcerrflsevdylvcvdvdmefrdhvgveiltplfgtlhpgfygssrea
ftyerrpqsqayipkdegdfyyggaffggsvqevqrltrachqammvdqangieavwhde
shlnkyllrhkptkvlspeylwdqqllgwpavlrklrftav