Diversity of non-histone protein fraction NHCP2 from hamster Kirkman-Robbins hepatoma and liver

Nuclear glycoproteins of hamster liver and Kirkman-Robbins hepatoma recognized by concanavalin A

1. Glycoproteins recognized by Concanavalin A (ConA) have been identified in nuclei and nuclear fractions differing in sensitivity to micrococcal nuclease digestion from hamster liver and Kirkman-Robbins hepatoma. 2. The major ConA binding proteins from hamster liver and Kirkman-Robbins hepatoma nuclei have molecular weights about 27,000 and 57,000, and 38,000 and 49,000, respectively. 3. A distinct distribution of glycoproteins between fractions differing in sensitivity to nuclease digestion has not been observed.

Growth-related changes of non-histone chromatin proteins from Kirkman-Robbins hepatoma

1. Non-histone chromatin protein fractions NHCP1 and NHCP2 eluted from hydroxyapatite with 50 and 100 mM phosphate buffer (pH 6.8) from nuclei of Kirkman-Robbins hepatoma from 4th, 7th and 9th day of growth were analysed by one- and two-dimensional gel electrophoresis as well as Western blot technique in the presence of antibodies elicited against NHCP1, NHCP2 and dehistonized chromatin of hamster hepatoma and liver. 2. The presence of electrophoretically and immunologically specific components among NHCP1 and NHCP2 fractions during Kirkman-Robbins hepatoma growth was stated.