>3a12F (F:) observed residues (from ATOM records)
ydyyvdkgyepskkrdiiavfrvtpaegytieqaagavaaesstgtwttypwyeqerwad
lsakaydfhdmgdgswivriaypfhafeeanlpgllasiagnifgmkrvkglrledlyfp
eklirefdgpafgiegvrkmleikdrpiygvvpkpkvgyspeefeklaydllsngadymk
ddenltspwynrfeeraeimakiidkvenetgekktwfanitadllemeqrlevladlgl
khamvdvvitgwgalryirdlaadyglaihghramhaaftrnpyhgismfvlaklyrlig
idqlhvgtagagkleggkwdviqnarilreshykpdendvfhleqkfysikaafptssgg
lhpgniqpviealgtdivlqlgggtlghpdgpaagaravrqaidaimqgipldeyakthk
elaralekwghvtpv