>1ybuB (B:) SEQRES residues mrgshhhhhhgsaermlatimftdivgstqhaaalgddrwrdlldnhdtivcheiqrfgg revntagdgfvatftspsaaiacaddivdavaalgievrigihagevevrdashgtdvag vavhigarvcalagpsevlvsstvrdivagsrhrfaergeqelkgvpgrwrlcvlmrdda trtr