>4gy2B (B:) observed residues (from ATOM records)
ttalvcdngsglvkagfagddapravfpsivgrprkdsyvgdeaqskrgiltlkypiehg
iitnwddmekiwhhtfynelrvapeehptllteaplnpkanrekmtqimfetfnvpamyv
aiqavlslyasgrttgivldsgdgvthnvpiyegyalphaimrldlagrdltdylmkilt
ergysfvttaereivrdikeklcyvaldfenemataassssleksyelpdgqvitigner
frcpetlfqpsfigmesagihettynsimkcdidirkdlyannvmsggttmypgiadrmq
keitalapstmkikiiapperkysvwiggsilaslstfqqmwitkqeydeagpsivhrkc