Abstract:
:Histone deacetylase 2 (HDAC2) catalyzes deacetylation of histones at the promoter and coding regions of transcribed genes and regulates chromatin structure and transcription. To explore the role of HDAC2 and phosphorylated HDAC2 in gene regulation, we studied the location along transcribed genes, the mode of recruitment and the associated proteins with HDAC2 and HDAC2S394ph in chicken polychromatic erythrocytes. We show that HDAC2 and HDAC2S394ph are associated with transcriptionally active chromatin and located in the interchromatin channels. HDAC2S394ph was present primarly at the upstream promoter region of the transcribed CA2 and GAS41 genes, while total HDAC2 was also found within the coding region of the CA2 gene. Recruitment of HDAC2 to these genes was partially dependent upon on-going transcription. Unmodified HDAC2 was associated with RNA binding proteins and interacted with RNA bound to the initiating and elongating forms of RNA polymerase II. HDAC2S394ph was not associated with RNA polymerase II. These results highlight the differential properties of unmodified and phosphorylated HDAC2 and the organization of acetylated transcriptionally active chromatin in the chicken polychromatic erythrocyte.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Jahan S,Sun JM,He S,Davie JRdoi
10.1002/jcp.26078subject
Has Abstractpub_date
2018-02-01 00:00:00pages
1650-1657issue
2eissn
0021-9541issn
1097-4652journal_volume
233pub_type
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