Literature DB >> 18478156

Characterization of nucleohistone and nucleoprotamine components in the mature human sperm nucleus.

Yan Li1, Claudia Lalancette, David Miller, Stephen A Krawetz.   

Abstract

AIM: To simultaneously determine the localization of histones and protamines within human sperm nuclei.
METHODS: Immunofluorescence of the core histones and protamines and fluorescence in situ hybridization of the telomere region of chromosome 16 was assessed in decondensed human sperm nuclei.
RESULTS: Immunofluorescent localization of histones, protamine 1 (PRM1) and protamine 2 (PRM2) along with fluorescence in situ hybridization localization of chromosome 16 telomeric sequences revealed a discrete distribution in sperm nuclei. Histones localized to the posterior ring region (i.e. the sperm nuclear annulus), whereas PRM1 and PRM2 appeared to be dispersed throughout the entire nucleus.
CONCLUSION: The co-localization of the human core sperm histones with the telomeric regions of chromosome 16 is consistent with the reorganization of specific non-protamine regions into a less compacted state.

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Year:  2008        PMID： 18478156      PMCID： PMC3856397          DOI： 10.1111/j.1745-7262.2008.00410.x

Source DB:  PubMed          Journal:  Asian J Androl        ISSN： 1008-682X            Impact factor:   3.285


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