>2yc3A (A:) observed residues (from ATOM records)
meksvsvillaggqgpkqyipllgqpialysfftfsrmpevkeivvvcdpffrdifeeye
esidvdlsfaipgkerqdsvysglqeidvnselvcihdsarplvntedvekvlkdgsavg
aavlgvpakatikevnsdslvvktldrktlwemqtpqvikpellkkgfelvkseglevtd
dvsiveylkhpvyvsqgsytnikvttpddlllaerilse