>4tn2A (A:) observed residues (from ATOM records)
asytwtgalitpcaaeesklpinalsnsllrhhnmvyattsrsaglrqkkvtfdrlqvld
dhyrdvlkemkakastvkakllsveeackltpphsakskfgygakdvrnlsskavnhihs
vwkdlledtvtpidttimaknevfcvqrkparlivfpdlgvrvcekmalydvvstlpqvv
mgssygfqyspgqrveflvntwkskknpmgfsydtrcfdstvtendirveesiyqccdla
pearqaikslterlyiggpltnskgqncgyrrcrasgvlttscgntltcylkasaacraa
klqdctmlvngddlvvicesagvqedaaslrafteamtrysappgdppqpeydlelitsc
ssnvsvahdasgkrvyyltrdpttplaraawetarhtpvnswlgniimyaptlwarmilm
thffsillaqeqlekaldcqiygacysiepldlpqiierlhglsafslhsyspgeinrva
sclrklgvpplrvwrhrarsvrarllsqggraatcgkylfnwavktklklfqgpaasqld
lsgwfvagysggdiyhslsra