Commercial PHA preparations contain different mitogenic components.
Three commercially available purified phytohaemagglutinin (PHA) preparations have been examined both chemically and biologically. Marked differences were observed in both composition and mitogenic effect on lymphocytes; the existence of at least two distinct mitogenic fractions in PHA was confirmed.
D000596:Amino Acids / Q000032:analysis; D004247:DNA / Q000096:biosynthesis; D004588:Electrophoresis, Cellulose Acetate; D008214:Lymphocytes / Q000166:cytology; D008938:Mitosis; D010835:Phytohemagglutinins / Q000032:analysis*
D000596:Amino Acids; D010835:Phytohemagglutinins; D004247:DNA