>4fi4B (B:) observed residues (from ATOM records)
mlkiidakvivtcpgrnfvtlkittsdgvtgvgdatlngrelavvsylrdhmipcligrd
ahriedvwqffyrgsywrggpvamtalaavdmalwdikaklagmplyqllggacregvmv
yghangetiedtiaearkyqalgykairlqsgvpglpstygvsgdkmfyepadgnlpten
vwstskylkhapklfeaarealgddvhllhdvhhrltpieagrlgkdlepyrlfwledav
paenqagfrlirqhtttplavgeifshvwdckqlieeqlidylratvlhaggitnlrkia
afadlhhvrtgchgatdlspitmaaalhfdlsvsnfglqeymrhtpetdavfphaysykd
gmlhpgeapglgvdidealagqypykraylpvnrledgtmynw