>3v1mA (A:) observed residues (from ATOM records)
ltesstskfvkinekgfsdfnihyneagngetvimlhgggpgaggwsnyyrnvgpfvdag
yrvilkdspgfnksdavvmdeqrglvnaravkglmdaldidrahlvgnamggatalnfal
eypdrigklilmgpgglgpsmfapmpmegikllfklyaepsyetlkqmlqvflydqslit
eellqgrweaiqrqpehlknflisaqkaplstwdvtarlgeikaktfitwgrddrfvpld
hglkllwniddarlhvfskcgqwaqwehadefnrlvidflrha