>2grqB (B:) observed residues (from ATOM records) padvstflafpspekllrlgpkssvliaqqtdtsdpekvvsaflkvssvfkdeatvrmav qdavdalmqkafnsssfnsntfltrllvhmgllksedkvkaianlygplmalnhmvqqdy fpkalaplllafvtkpnsalescsfarhsllqtlykv