>1s7jB (B:) observed residues (from ATOM records)
msypyyivdafaeevfkgnpaavyvlekwlpeavmqniaiennlsetaftvkegqsyalr
wftpereidlcghatlatafvlfnyysvaeetlhftsqsgplavtkkeeyyyldfpyilp
eripilpeyeaalgtkiyeaylgrdlffvlkdeetvakitpdfsalkaldlgvgvivtas
gdsvdfvsrtffpklrinedpvcgsahanlipywgkrlnqttlsayqvsprggfltcevk
enrviiggtaklfakgeayl