>tr|B2U3G3|B2U3G3_SHIB3 Catabolite activator protein OS=Shigella boydii serotype 18 GN=crp MVLGKPQTDPTLEWFLSHCHIHKYPSKSTLIHQGEKAETLYYIVKGSVAVLIKDEEGKEM ILSYLNQGDFIGELGLFEEGQERSAWVRAKTACEVAEISYKKFRQLIQVNPDILMRLSAQ MARRLQVTSEKVGNLAFLDVTGRIAQTLLNLAKQPDAMTHPDGMQIKITRQEIGQIVGCS RETVGRILKMLEDQNLISAHGKTIVVYGTR