>3s6jB (B:) observed residues (from ATOM records)
qtsfifdldgtltdsvyqnvaawkealdaeniplamwrihrkigmsgglmlitdeqaerl
sekhaqayerlqhqiialpgavelletldkenlkwciatsggidtatinlkalkldinki
nivtrddvsygkpdpdlflaaakkigapideclvigdaiwdmlaarrckatgvgllsggy
digeleragalrvyedpldllnhldeias