High mobility group proteins HMG1 and HMG2 do not decrease the melting temperature of DNA

Autor: Lyuben N. Marekov, Ladislav Pivec, Beltcho G. Beltchev
Rok vydání: 1984
Předmět:
Zdroj: Biochemical and biophysical research communications. 120(3)
ISSN: 0006-291X
Popis: High mobility group proteins 1 and 2 isolated in non-denaturing conditions cannot decrease the temperature of denaturation of DNA. When they are isolated or treated with tricloroacetic acid a hyperchromic peak below the melting temperature of free DNA appears in agreement with previous data ( Javaherian et al. (1979) Nucl . Acids Res. 6, 3569-3580). We show that this is due to light scattering of aggregated protein at submelting temperatures and not to melting of DNA.
Databáze: OpenAIRE