TY - GEN AU - Carroll,M C AU - Fathallah,D M AU - Bergamaschini,L AU - Alicot,E M AU - Isenman,D E TI - Substitution of a single amino acid (aspartic acid for histidine) converts the functional activity of human complement C4B to C4A SN - 0027-8424 PY - 1990///1011 KW - Animals KW - Aspartic Acid KW - Base Sequence KW - Cell Line KW - Complement C4a KW - biosynthesis KW - Complement C4b KW - Genetic Vectors KW - Hemolysis KW - Histidine KW - Humans KW - Kinetics KW - Molecular Sequence Data KW - Mutation KW - Oligonucleotide Probes KW - Plasmids KW - Recombinant Proteins KW - Transfection N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1073/pnas.87.17.6868 ER -