>1xq5B (B:) SEQRES residues vvwtdferatiadifskldyeavggatlarclivypwtqryfgnfgnlynaaaimgnpmi akhgttilhgldravknmdnikatyaelsvlhseklhvdpdnfkllsdcltivvaaqlgk afsgevqaafqkflsvvvsalgkqyh