>1s5aB (B:) SEQRES residues snamlmnefekacetlrkfmaymlekdmkswtelwdenavfefpyapegspkriegkaai ydyikdypkqihlssftaptvyrsadsntviaefqcdghvietglpyrqsyisvietrdg rivryrdywnplvvkeafggsflqteesgk