>4lv3A (A:) observed residues (from ATOM records)
apqqindivhrtitplieqqkipgmavaviyqgkpyyftwgyadiakkqpvtqqtlfelg
svsktftgvlggdaiargeiklsdpttkywpeltakqwngitllhlatytagglplqvpd
evksssdllrfyqnwqpawapgtqrlyanssiglfgalavkpsglsfeqamqtrvfqplk
lnhtwinvppaeeknyawgyregkavhvspgaldaeaygvkstiedmarwvqsnlkpldi
nektlqqgiqlaqsrywqtgdmyqglgwemldwpvnpdsikialaarpvkaitpptpavr
aswvhktgatggfgsyvafipekelgivmlanknypnparvdaawqilnalq