Fractionation by high-performance liquid chromatography of the low-molecular-mass high-mobility-group (HMG) chromosomal proteins present in proliferating rat cells and an investigation of the HMG proteins present in virus transformed cells
Copyright policy )Fractionation by high-performance liquid chromatography of the low-molecular-mass high-mobility-group (HMG) chromosomal proteins present in proliferating rat cells and an investigation of the HMG proteins present in virus transformed cells
The low-molecular-mass high-mobility-group (HMG) proteins from young rat thymus nuclei were fractionated by high-performance liquid chromatography. Two proteins analogous to calf HMG14 and HMG17 were found together with a third major component HMGI similar to that found in HeLa cells [Lund et al. (1983) FEBS Lett. 152, 163-167]. HMGI has as amino acid composition similar to but distinct from HMG14 and HMG17. The three proteins form a family of proteins with HMG14 having an amino acid composition intermediate between HMG17 and HMGI. HMGI is present in proliferating fibroblasts and embryos but is present in very low levels in rat liver, a non-dividing tissue, supporting the notion that HMGI is required for proliferating cells. Fibroblasts transformed with avian sarcoma virus have high levels of HMGI and an additional band HMGI' but the presence of HMGI and HMGI' is not dependent on a functional src gene product.
Cell Nucleus, Erythrocytes, High Mobility Group Proteins, Temperature, Thymus Gland, Fibroblasts, Hydrogen-Ion Concentration, Cell Transformation, Viral, Rats, Molecular Weight, Avian Sarcoma Viruses, Liver, Species Specificity, Animals, Humans, Cattle, Electrophoresis, Polyacrylamide Gel, Amino Acids, Chickens, Cell Division
Cell Nucleus, Erythrocytes, High Mobility Group Proteins, Temperature, Thymus Gland, Fibroblasts, Hydrogen-Ion Concentration, Cell Transformation, Viral, Rats, Molecular Weight, Avian Sarcoma Viruses, Liver, Species Specificity, Animals, Humans, Cattle, Electrophoresis, Polyacrylamide Gel, Amino Acids, Chickens, Cell Division
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