>6j1sB (B:) observed residues (from ATOM records)
alpsgsdpafsqpksvldagltcqgaspssvskpillvpgtgttgpqsfdsnwiplsaql
gytpcwispppfmlndtqvnteymvnaittlyagsgnnklpvltasqgglvaqwgltffp
sirskvdrlmafaplykgtvlagpldalavsapsvwqqttgsalttalrnaggltqivpt
tnlysatdemcqpqvsnspldssylfngknvqaqavcgplfvidhagsltsqfsyvvgrs
alrsttgqarsadygitdcnplpandltpeqkvaaaallapaaaaivagpkqncepdlmp
yarpfavgkrtcsgivtp