>3tclB (B:) observed residues (from ATOM records) eivltqspdtlslspgeratlscrasqsvhsryfawyqhkpgqpprlliyggstratgip nrfsaggsgtqftltvnrleaedfavyycqqygrspytfgqgtkveirrtvaapsvfifp psdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstl tlskadyekhkvyacevthqglsspvtksfnrge