>1zabB (B:) observed residues (from ATOM records) vepehvqrlllssreakksaycpysrfpvgaalltgdgrifsgcnienacyplgvcaert aiqkaisegykdfraiaissdlqeefispcgacrqvmrefgtdwavymtkpdgtfvvrtv qellpasfgpedlq