>1sa1A (A:) observed residues (from ATOM records)
recisihvgqagvqignacwelyclehgiqpdgqmpsdgddsfntffsetgagkhvprav
fvdleptvidevrtgtyrqlfhpeqlitgkedaannyarghytigkeiidlvldrirkla
dqctglqgfsvfhsfgggtgsgftsllmerlsvdygkksklefsiypapqvstavvepyn
siltthttlehsdcafmvdneaiydicrrnldierptytnlnrligqivssitaslrfdg
alnvdltefqtnlvpyprihfplatyapvisaekayheqlsvaeitnacfepanqmvkcd
prhgkymaccllyrgdvvpkdvnaaiatiktkrtiqfvdwcptgfkvginyepptvvpgg
dlakvqravcmlsnttaiaeawarldhkfdlmyakrafvhwyvgegmeegefsearedma
alekdyeevgvds