>1n4dB (B:) observed residues (from ATOM records)
aprvitlspantelafaagitpvgvssysdyppqaqkieqvstwqgmnlerivalkpdlv
iawrggnaerqvdqlaslgikvmwvdatsieqianalrqlapwspqpdkaeqaaqslldq
yaqlkaqyadkpkkrvflqfginppftsgkesiqnqvlevcggenifkdsrvpwpqvsre
qvlarspqaivitgipvipltsdwferaspriilaaqqlcnalsqvd