>2a3zA (A:) observed residues (from ATOM records)
ttalvcdngsglvkagfagddapravfpsivgrprhqgvmvgmgqkdsyvgdeaqskrgi
ltlkypiehgiitnwddmekiwhhtfynelrvapeehptllteaplnpkanrekmtqimf
etfnvpamyvaiqavlslyasgrttgivldsgdgvthnvpiyegyalphaimrldlagrd
ltdylmkiltergysfvttaereivrdikeklcyvaldfenemataassssleksyelpd
gqvitignerfrcpetlfqpsfigmesagihettynsimkcdidirkdlyannvmsggtt
mypgiadrmqkeitalapstmkikiiapperkysvwiggsilaslstfqqmwitkqeyde
a