>2h57B (B:) observed residues (from ATOM records)
kevhvlclgldnsgkttiinklkpsnaqsqnilptigfsiekfkssslsftvfdmsgqgr
yrnlwehyykegqaiifvidssdrlrmvvakeeldtllnhpdikhrripilffankmdlr
davtsvkvsqllclenikdkpwhicasdaikgeglqegvdwlqdqiq