>3ffqA (A:) observed residues (from ATOM records)
srrqyqekykqveqymsfhklpadfrqkihdyyehryqgkmfdedsilgelngplreeiv
nfncrklvasmplfanadpnfvtamltklkfevfqpgdyiiregtigkkmyfiqhgvvsv
ltnkemklsdgsyfgeiclltrgrrtasvradtycrlyslsvdnfnevleeypmmrrafe
tvai