cis-Diamminedichloroplatinum-mediated crosslinking of nuclear proteins to DNA is cell cycle specific
Banjar, Zainy M. ; Hnilica, Lobumir S. ; Briggs, Robert C. ; Dominguez, E. ; Stein, Janet L. ; Stein, Gary S.
Banjar, Zainy M.
Hnilica, Lobumir S.
Briggs, Robert C.
Dominguez, E.
Stein, Janet L.
Stein, Gary S.
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Journal Article
Publication Date
1985-02-15
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Abstract
Immunochemical analysis was employed to investigate the cell cycle-dependent protein-DNA crosslinking by cis-diamminedichloroplatinum II (cis-DDP), in HeLa-S3 cells. Cells synchronized by double thymidine block or hydroxyurea were released into S phase and incubated at 2-h intervals with cis-DDP as they progressed through S1, G2, M, and then into G1 and S phases of the subsequent cycle. Immunoblots of the DNA-crosslinked antigens reacted with antisera to 0.35 M NaCl extract or residue of HeLa S-phase nuclei revealed that several antigens changed their DNA-crosslinking pattern during the progression of HeLa cells through their reproductive cycle.
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Arch Biochem Biophys. 1985 Feb 15;237(1):202-7.
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PubMed ID
4038596