>2a6iB (B:) observed residues (from ATOM records)
evqlqqsgaelvragssvkmsckasgytftsyginwvkqrpgqglewigyinpgngytky
nekfkgkttltvdkssstaymqlrsltsedsavyfcarsvyyggsyyfdywgqgttltvs
sakttppsvyplapgsansmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdly
tlsssvtvpssprpsetvtcnvahpasstkvdkkivprd