>3q12A (A:) observed residues (from ATOM records)
amliietlpllrqqirrwrqegkrialvptmgnlheghmtlvdeaktradvvvvtifvnp
lqferpddlahyprtlqedcekltrhgadlvfapaaadiypaglekqtyvdvpalstile
gasrpghfrgvstivsklfnliqpdvacfgekdyqqlalirkmvadmgydinivgvptvr
akdglalssrngylteeerqiapqlskimwalaekmalgerqidalleeaaaqllrvgft
pdelfirdaetlqpltvdsqqavilmaawlgkarlidnqlvdlrh