>3q12B (B:) observed residues (from ATOM records)
namliietlpllrqqirrwrqegkrialvptmgnlheghmtlvdeaktradvvvvtifvn
plqferpddlahyprtlqedcekltrhgadlvfapaaadiypaglekqtyvdvpalstil
egasrpghfrgvstivsklfnliqpdvacfgekdyqqlalirkmvadmgydinivgvptv
rakdglalssrngylteeerqiapqlskimwalaekmalgerqidalleeaaaqllrvgf
tpdelfirdaetlqpltvdsqqavilmaawlgkarlidnqlvdl