Nucleic Acids Research, 1980, Vol. 8, No. 13 2859-2870
© 1980
MOLECULAR BIOLOGY |
The release of high mobility group protein H6 and protamine gene sequences upon selective DNase I degradation of trout testis chromatin
1Department of Molecular Biology and Biochemistry, University of California Irvine, CA 92717, USA 2Division of Medical Biochemistry, University of Calgary Calgary, Alberta T2N 1N4, Canada
*To whom correspondence should be addressed
Received June 12, 1980. Limited digestion of trout testis nuclei with DNase I selectively degrades the protamine genes. Concomitant with the degradation of transcribed DNA sequences a series of chromosomal proteins are released; among these, the major species corresponds to the high mobility group protein H6. The amounts of H6 released from chromatin by limited DNase I action and that in the residual nuclear pellet have been determined. A very high proportion of H6 is associated with DNase I sensitive chromatin regions.