3C Viral Proteases 4QD397987E ATP-Binding Cassette Transporters Apoptosis Regulatory Proteins Carrier Proteins Cysteine Endopeptidases DNA, Complementary EC 3.4.21.6 EC 3.4.22.- EC 3.4.22.28 Escherichia coli Proteins Factor Xa Histidine Intracellular Signaling Peptides and Proteins Journal Article Maltose-Binding Proteins Monosaccharide Transport Proteins Recombinant Fusion Proteins Research Support, U.S. Gov't, Non-P.H.S. Viral Proteins maltose transport system, E coli prostate apoptosis response-4 protein