Early and late changes in nonhistone chromatin proteins accompanying rat liver regeneration. 1975

L C Yeoman, and C W Taylor, and J J Jordan, and H Busch

Chromatin was isolated from 0.025 M citric acid nuclei of regenerating rat liver at 1,5,18,24, and 48 hr posthepatectomy. The total protein to DNA ratios did not change significantly during this time period. However, 2-dimensional polyacrylamide gel electrophoresis of nonhistone proteins of "Chromatin Fraction II" revealed changes in the amounts of some protein spots. As early as 1 hr after hepatectomy, decreases in size and intensity were detected for protein spots Bp, B24, C18, and CQ, and increases were detected for protein spots CBL and C13. Late changes in size and intensity were found for protein spots BA and CN, which decreased in size and intensity 5 hr after hepatectomy. The spot densities and sizes for most of the nonhistone proteins underwent no significant changes in the course of liver regeneration. The increases and decreases observed in specific protein spots represent an ordered series of changes in a limited number of nonhistone proteins.

UI MeSH Term Description Entries
D008115 Liver Regeneration Repair or renewal of hepatic tissue. Liver Regenerations,Regeneration, Liver,Regenerations, Liver
D008297 Male Males
D009698 Nucleoproteins Proteins conjugated with nucleic acids. Nucleoprotein
D002843 Chromatin The material of CHROMOSOMES. It is a complex of DNA; HISTONES; and nonhistone proteins (CHROMOSOMAL PROTEINS, NON-HISTONE) found within the nucleus of a cell. Chromatins
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D006498 Hepatectomy Excision of all or part of the liver. (Dorland, 28th ed) Hepatectomies
D006657 Histones Small chromosomal proteins (approx 12-20 kD) possessing an open, unfolded structure and attached to the DNA in cell nuclei by ionic linkages. Classification into the various types (designated histone I, histone II, etc.) is based on the relative amounts of arginine and lysine in each. Histone,Histone H1,Histone H1(s),Histone H2a,Histone H2b,Histone H3,Histone H3.3,Histone H4,Histone H5,Histone H7
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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