title: Mitogenic proteins of the 3T3 plasma membrane.
abstract: A mitogenic factor from 3T3 plasma membranes has been identified and partially characterized. The factor appears to be a peripheral membrane protein that can be released by mild trypsin, chymotrypsin, or plasmin treatment. This component is sensitive to heat and acid, and has a molecular weight in the range of 150,000-200,000 daltons as determined by gel filtration. A similar mitogenic activity has also been found on the membranes of both SV-40-transformed 3T3 cells and human fibroblasts. The factor appears to be distinct from all previously described mitogenic components.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000502:physiology*; D002478:Cells, Cultured; D006801:Humans; D008565:Membrane Proteins / Q000302:isolation & purification / Q000502:physiology; D051379:Mice; D008934:Mitogens / Q000302:isolation & purification*; D008970:Molecular Weight; D014357:Trypsin / Q000378:metabolism
chemical_list: D008565:Membrane Proteins; D008934:Mitogens; D014357:Trypsin