>1yrbB (B:) observed residues (from ATOM records)
mrgshhhhhhgmasmivvfvgtagsgkttltgefgrylednykvayvnldtgvkelpyep
sidvrefvtveeimregygpngaivesydrlmekfneylnkilrlekendyvlidtpgqm
etflfhefgvrlmenlpyplvvyisdpeilkkpndycfvrffallidlrlgattipalnk
vdllseeekerhrkyfedidyltarlkldpsmqglmaykmcsmmtevlppvrvlylsakt
regfedletlayehyctcgd