>1za3B (B:) observed residues (from ATOM records)
evqlvesggglvqpggslrlscaasgfsiysysihwvrqapgkglewvasispysgytsy
adsvkgrftisadtskntaylqmnslraedtavyycsryssyysyyyssssysyamdywg
qgtlvtvssastkgpsvfplapsgtaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
qssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepk