Abstract
Heterochromatin formation in yeast involves deacetylation of histones, but the precise relationship between acetylation and the association of proteins such as Sir3, Sir4, and the histone deacetylase Sir2 with chromatin is still unclear. Here we show that Sir3 protein spreads to subtelomeric DNA in cells lacking the transcription-related histone acetyltransferases GCN5 and ELP3 . Spreading correlates with hypoacetylation of lysines in the histone H3 tail and results in deacetylation of lysine 16 in histone H4. De-repression of genes situated very close to the ends of the chromosomes in gcn5 elp3 suggests that Sir3 spreads into subtelomeric DNA from the tip of the telomere. Interestingly, growth defects caused by gcn5 elp3 mutation can be suppressed by SIR deletion, suggesting that Sir proteins become detrimental for growth when chromatin is severely hypoacetylated.
References
34
Referenced
33
10.1016/S0092-8674(01)00259-8
10.1016/S0092-8674(00)81159-9
10.1016/S0959-437X(98)80146-9
10.1016/S0092-8674(00)81160-5
10.1128/MCB.16.8.4349
10.1101/gad.7.4.592
10.1016/S1097-2765(01)00301-X
10.1101/gad.8.19.2257
10.1016/0092-8674(95)90512-X
10.1073/pnas.94.6.2186
10.1101/gad.11.1.83
10.1038/35001622
10.1073/pnas.110148297
10.1073/pnas.97.12.6658
10.1016/S1097-2765(02)00647-0
10.1016/0092-8674(89)90584-9
10.1016/S1097-2765(00)80179-3
10.1093/emboj/19.12.3060
10.1126/science.274.5290.1201
10.1002/(SICI)1097-0061(199907)15:10B<963::AID-YEA399>3.0.CO;2-W
10.1016/S1097-2765(01)00219-2
10.1038/38444
10.1016/S0021-9258(18)54150-8
10.1101/gad.10.10.1247
10.1074/jbc.M008668200
10.1074/jbc.M110532200
10.1038/383092a0
10.1038/ng1017
10.1038/ng993
10.1093/emboj/17.19.5679
10.1016/S0955-0674(97)80011-7
10.1093/emboj/20.3.520
10.1016/S0092-8674(02)00759-6
10.1101/gad.1001502
Dates
Type | When |
---|---|
Created | 22 years, 2 months ago (June 24, 2003, 1:47 p.m.) |
Deposited | 3 years, 4 months ago (April 25, 2022, 9:24 p.m.) |
Indexed | 2 months ago (July 2, 2025, 3:08 p.m.) |
Issued | 22 years, 2 months ago (June 9, 2003) |
Published | 22 years, 2 months ago (June 9, 2003) |
Published Online | 22 years, 2 months ago (June 9, 2003) |
Published Print | 22 years, 2 months ago (June 24, 2003) |
@article{Kristjuhan_2003, title={Spreading of Sir3 protein in cells with severe histone H3 hypoacetylation}, volume={100}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.1332299100}, DOI={10.1073/pnas.1332299100}, number={13}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Kristjuhan, Arnold and Wittschieben, Birgitte Ø. and Walker, Jane and Roberts, Douglas and Cairns, Bradley R. and Svejstrup, Jesper Q.}, year={2003}, month=jun, pages={7551–7556} }