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| Citation | Leach, T.J., Mazzeo, M., Chotkowski, H.L., Madigan, J.P., Wotring, M.G., Glaser, R.L. (2000). Histone H2A.Z is widely but nonrandomly distributed in chromosomes of Drosophila melanogaster. J. Biol. Chem. 275(30): 23267--23272. (Export to RIS) | ||
| FlyBase ID | FBrf0129924 | ||
| Publication Type | Research paper | ||
| PubMed ID | 10801889 | ||
| PubMed Abstract | Variant histones that differ in amino acid sequence from S-phase histones are widespread in eukaryotes, yet the structural changes they cause to nucleosomes and how those changes affect relevant cellular processes have not been determined. H2A.F/Z is a highly conserved family of H2A variants. H2Av, the H2A.F/Z variant of Drosophila melanogaster, was localized in polytene chromosomes by indirect immunofluorescence and in diploid chromosomes by chromatin immunoprecipitation. H2Av was widely distributed in the genome and not limited to sites of active transcription. H2Av was present in thousands of euchromatic bands and the heterochromatic chromocenter of polytene chromosomes, and the H2Av antibody precipitated both transcribed and nontranscribed genes as well as noncoding euchromatic and heterochromatic sequences. The distribution of H2Av was not uniform. The complex banding pattern of H2Av in polytene chromosomes did not parallel the concentration of DNA, as did the pattern of immunofluorescence using H2A antibodies, and the density of H2Av measured by immunoprecipitation varied between different sequences. Of the sequences assayed, H2Av was least abundant on 1. 688 satellite sequences and most abundant on the hsp70 genes. Finally, transcription caused, to an equivalent extent, both H2Av and H2A to be less tightly associated with DNA. | ||
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| Language of Publication | English | ||
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| Publication Type | Journal | ||
| Abbreviation | J. Biol. Chem. | ||
| Title | Journal of Biological Chemistry | ||
| Publication Year | 1905- | ||
| ISBN/ISSN | 0021-9258 | ||
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Data from Reference
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| Alleles (1)
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| Genes (18)
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