>6lkrB (B:) SEQRES residues mgsmcpkdwklfgshcylvptvfssaswnkseencsrmgahlvvihsqeeqdfitgildi haayfiglwdtghrqwqwvdqtpyeesvtfwhngepssdnekcvtvyyrrnigwgwndis cnlkqksvcqmkkinl