>6ex7B (B:) observed residues (from ATOM records) airptigqqmetgdqrfgdlvfrqlapnvwqhtsyldmpgfgavasnglivrdggrvlvv dtawtddqtaqilnwikqeinlpvalavvthahqdkmggmdalhaagiatyanalsnqla pqegmvaaqhsltfaangwvepatapnfgplkvfypgpghtsdnitvgidgtdiafggcl ikdskakslgnlgdadtehyaasarafgaafpkasmivmshsapdsraaithtarmadkl r