A Class II Histone Deacetylase Acts on Newly Synthesized Histones in Tetrahymena Export

@article{citeulike:2651117, abstract = {Newly synthesized histones are acetylated prior to their deposition into nucleosomes. Following nucleosome formation and positioning, they are rapidly deacetylated, an event that coincides with further maturation of the chromatin fiber. The histone deacetylases (HDACs) used for histone deposition and de novo chromatin formation are poorly understood. In the ciliate Tetrahymena thermophila, transcription-related deacetylation in the macronucleus is physically separated from deposition-related deacetylation in the micronucleus. This feature was utilized to identify an HDAC named Thd2, a class II HDAC that acts on newly synthesized histones to remove deposition-related acetyl moieties. The THD2 transcript is alternatively spliced, and the major form contains a putative inositol polyphosphate kinase (IPK) domain similar to Ipk2, an enzyme that promotes chromatin remodeling by SWI/SNF remodeling complexes. Cells lacking Thd2, which retain deposition-related acetyl moieties on new histones, exhibit chromatin and cytological phenotypes indicative of a role for Thd2 in chromatin maturation, including the proteolytic processing of histone H3. 10.1128/EC.00409-07}, author = {Smith, Joshua J. and Torigoe, Sharon E. and Maxson, Julia and Fish, Lisa C. and Wiley, Emily A.}, citeulike-article-id = {2651117}, citeulike-linkout-0 = {http://dx.doi.org/10.1128/EC.00409-07}, citeulike-linkout-1 = {http://ec.asm.org/cgi/content/abstract/7/3/471}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/18178773}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=18178773}, day = {1}, doi = {10.1128/EC.00409-07}, journal = {Eukaryotic Cell}, keywords = {chromatin, epigenetics, evolution, hdacs, histone, protist}, month = {March}, number = {3}, pages = {471--482}, posted-at = {2008-04-10 23:12:28}, priority = {5}, title = {A Class II Histone Deacetylase Acts on Newly Synthesized Histones in Tetrahymena}, url = {http://dx.doi.org/10.1128/EC.00409-07}, volume = {7}, year = {2008} }

TY - JOUR ID - citeulike:2651117 L3 - citeulike-article-id:2651117 N2 - Newly synthesized histones are acetylated prior to their deposition into nucleosomes. Following nucleosome formation and positioning, they are rapidly deacetylated, an event that coincides with further maturation of the chromatin fiber. The histone deacetylases (HDACs) used for histone deposition and de novo chromatin formation are poorly understood. In the ciliate Tetrahymena thermophila, transcription-related deacetylation in the macronucleus is physically separated from deposition-related deacetylation in the micronucleus. This feature was utilized to identify an HDAC named Thd2, a class II HDAC that acts on newly synthesized histones to remove deposition-related acetyl moieties. The THD2 transcript is alternatively spliced, and the major form contains a putative inositol polyphosphate kinase (IPK) domain similar to Ipk2, an enzyme that promotes chromatin remodeling by SWI/SNF remodeling complexes. Cells lacking Thd2, which retain deposition-related acetyl moieties on new histones, exhibit chromatin and cytological phenotypes indicative of a role for Thd2 in chromatin maturation, including the proteolytic processing of histone H3. 10.1128/EC.00409-07 IS - 3 JF - Eukaryotic Cell EP - 482 TI - A Class II Histone Deacetylase Acts on Newly Synthesized Histones in Tetrahymena VL - 7 SP - 471 KW - chromatin KW - epigenetics KW - evolution KW - hdacs KW - histone KW - protist AU - Smith, Joshua AU - Torigoe, Sharon AU - Maxson, Julia AU - Fish, Lisa AU - Wiley, Emily PY - 2008/03/01/ UR - http://dx.doi.org/10.1128/EC.00409-07 ER -