>3a13B (B:) observed residues (from ATOM records)
iydyyvdkgyepskkrdiiavfrvtpaegytieqaagavaaesstgtwttlypwyeqerw
adlsakaydfhdmgdgswivriaypfhafeeanlpgllasiagnifgmkrvkglrledly
fpeklirefdgpafgiegvrkmleikdrpiygvvpkpkvgyspeefeklaydllsngady
mkddenltspwynrfeeraeimakiidkvenetgekktwfanitadllemeqrlevladl
glkhamvdvvitgwgalryirdlaadyglaihghramhaaftrnpyhgismfvlaklyrl
igidqlhvgtagagklegerditiqnarilreshykpdendvfhleqkfysikaafptss
gglhpgniqpviealgtdivlqlgggtlghpdgpaagaravrqaidaimqgipldeyakt
hkelaralekwghvtpv