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. 1991 Jul;195(1):8-12.
doi: 10.1016/0014-4827(91)90493-e.

A complex pattern of H2A phosphorylation in the mouse testis

G R Green  1 , J C Patel, N B Hecht, D L Poccia
Affiliations

A complex pattern of H2A phosphorylation in the mouse testis

G R Green et al. Exp Cell Res. 1991 Jul.

Abstract

Phosphorylation of H2A histones in mouse testis was examined using testis tubule cultures labeled with 32PO4. Histones were analyzed by two systems of two-dimensional polyacrylamide gel electrophoresis, followed by autoradiography of the gels. Of the 32PO4 detected in histones, 95% was incorporated by certain modified forms of the H2A variants H2A.1 and H2A.X. Phosphorylation sites were mapped to N- and C-terminal regions of the modified variants by SDS gel electrophoresis and autoradiography of peptides generated by cleavage of in vitro-labeled proteins with N-bromosuccinimide. Incorporation rates differed for N- and C-terminal regions from different modified forms, demonstrating a complex pattern of H2A phosphorylation in the mouse testis.

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