>1pg4A (A:) observed residues (from ATOM records)
hkhaipaniadrclinpeqyetkykqsindpdtfwgeqgkildwitpyqkvkntsfapgn
vsikwyedgtlnlaancldrhlqengdrtaiiwegddtsqskhisyrelhrdvcrfantl
ldlgikkgdvvaiympmvpeaavamlacarigavhsvifggfspeavagciidsssrlvi
tadegvragrsiplkknvddalknpnvtsvehvivlkrtgsdidwqegrdlwwrdlieka
spehqpeamnaedplfilytsgstgkpkgvlhttggylvyaattfkyvfdyhpgdiywct
advgwvtghsyllygplacgattlmfegvpnwptparmcqvvdkhqvnilytaptairal
maegdkaiegtdrsslrilgsvgepinpeawewywkkigkekcpvvdtwwqtetggfmit
plpgaielkagsatrpffgvqpalvdneghpqegategnlvitdswpgqartlfgdherf
eqtyfstfknmyfsgdgarrdedgyywitgrvddvlnvsghrlgtaeiesalvahpkiae
aavvgiphaikgqaiyayvtlnhgeepspelyaevrnwvrkeigplatpdvlhwtdslpk
trsgkimrrilrkiaagdadpgvveklleekqa