>3a13A (A:) observed residues (from ATOM records)
ydyyvdkgyepskkrdiiavfrvtpaegytieqaagavaaesstgtwttlypwyeqerwa
dlsakaydfhdmgdgswivriaypfhafeeanlpgllasiagnifgmkrvkglrledlyf
peklirefdgpafgiegvrkmleikdrpiygvvpkpkvgyspeefeklaydllsngadym
kddenltspwynrfeeraeimakiidkvenetgekktwfanitadllemeqrlevladlg
lkhamvdvvitgwgalryirdlaadyglaihghramhaaftrnpyhgismfvlaklyrli
gidqlhvgtagagklegerditiqnarilreshykpdendvfhleqkfysikaafptssg
glhpgniqpviealgtdivlqlgggtlghpdgpaagaravrqaidaimqgipldeyakth
kelaralekwghvtpv