>1IIB_1|Chains A, B|ENZYME IIB OF THE CELLOBIOSE-SPECIFIC PHOSPHOTRANSFERASE SYSTEM|Escherichia coli (83333) MEKKHIYLFSSAGMSTSLLVSKMRAQAEKYEVPVIIEAFPETLAGEKGQNADVVLLGPQIAYMLPEIQRLLPNKPVEVIDSLLYGKVDGLGVLKAAVAAIKKAAAN