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Biochem J. 1988 Oct 1;255(1):23-7.

A new h.p.l.c. isolation procedure for chicken and goose erythrocyte histones.

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Institute of Medical Chemistry and Biochemistry, University of Innsbruck, Austria.


Total chicken erythrocyte histones were separated by reversed-phase h.p.l.c. using a multi-step acetonitrile gradient in a very short time (35 min). The proteins were eluted in the following order: H1, H5, H2B, H2A.2, H4, H2A.1 and H3.2. Applying a special gradient system adapted for the separation of very-lysine-rich histones, chicken erythrocyte H5 was resolved into two subfractions. Their electrophoretic mobilities were identical in both SDS and acetic acid/urea/Triton polyacrylamide-gel electrophoresis, but different in free-flow electrophoresis. Amino-acid-sequence analyses revealed that the two components only differ with respect to position 15, one having glutamine in that position and the other arginine. A separation of histones prepared from goose erythrocytes disclosed no H5 subfractionation. Furthermore, histones obtained from anaemic-chicken blood were analysed by the above-mentioned h.p.l.c. conditions. An alteration in the relation of H1 to H5 was detected, but no further differences in the number and quantity of the histones and histone variants were observed as compared with the corresponding proteins processed from normal-chicken blood.

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