>3hbtA (A:) observed residues (from ATOM records)
ttalvcdngsglvkagfagddapravfpsivgrprdsyvgdeaqskrgiltlkypiehgi
itnwddmekiwhhtfynelrvapeehptllteaplnpkanrekmtqimfetfnvpamyva
iqavlslyasgrttgivldsgdgvthnvpiyegyalphaimrldlagrdltdylmkilte
rgysfvttaereivrdikeklcyvaldfenemataassssleksyelpdgqvitignerf
rcpetlfqpsfigmesagihettynsimkcdidirkdlyannvmsggttmypgiadrmqk
eitalapstmkikiiapperkysvwiggsilaslstfqqmwitkqeydeagpsivhrkcf