>3p1tB (B:) observed residues (from ATOM records)
avclafnenpeaveprvqaaiaaaaarinrypfdaeprvmrklaehfscpednlmlvrgi
decfdrisaefssmrfvtawpgfdgyrariavsglrhfeigltddllldpndlaqvsrdd
cvvlanpsnptgqalsageldqlrqragkllidetyvdyssfrarglaygenelvfrsfs
ksyglaglrlgalfgpseliaamkrkqwfcnvgtldlhaleaaldndrareahiaktlaq
rrrvadalrglgyrvasseanfvlvenaagertlrflrergiqvkdagqfglhhhirisi
greedndrllaalaeysdh