open access

Vol 47, No 1 (2009)
Original paper
Submitted: 2011-12-19
Published online: 2009-05-08
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Factors related to RNA polymerase II transcription are localized in interchromatin granule clusters of Panorpa communis oocytes.

Florina Batalova, Vladimir Parfenov
DOI: 10.2478/v10042-009-0006-2
·
Folia Histochem Cytobiol 2009;47(1):123-126.

open access

Vol 47, No 1 (2009)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2009-05-08

Abstract

Diplotene oocyte nucleus of the scorpionfly Panorpa communis is transcriptionally silent and contains numerous nuclear bodies including interchromatin granule clusters (IGCs). The latter consist of the granules of 30-50 nm in diameter and contain IGC marker protein SC35 as well as RNA polymerase II. In this study, we also localized in P. communis oocyte IGCs the transcription coactivators CBP/p300, TATA-binding protein (TBP) which is a component of the basal transcription factor TFIID and the basal transcription factor TFIIH. We belive that IGCs in transcriptionally inert P. communis oocytes are storage sites for the components of RNA polymerase II holoenzyme and other factors of RNA pol II transcription.

Abstract

Diplotene oocyte nucleus of the scorpionfly Panorpa communis is transcriptionally silent and contains numerous nuclear bodies including interchromatin granule clusters (IGCs). The latter consist of the granules of 30-50 nm in diameter and contain IGC marker protein SC35 as well as RNA polymerase II. In this study, we also localized in P. communis oocyte IGCs the transcription coactivators CBP/p300, TATA-binding protein (TBP) which is a component of the basal transcription factor TFIID and the basal transcription factor TFIIH. We belive that IGCs in transcriptionally inert P. communis oocytes are storage sites for the components of RNA polymerase II holoenzyme and other factors of RNA pol II transcription.
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About this article
Title

Factors related to RNA polymerase II transcription are localized in interchromatin granule clusters of Panorpa communis oocytes.

Journal

Folia Histochemica et Cytobiologica

Issue

Vol 47, No 1 (2009)

Article type

Original paper

Pages

123-126

Published online

2009-05-08

DOI

10.2478/v10042-009-0006-2

Bibliographic record

Folia Histochem Cytobiol 2009;47(1):123-126.

Authors

Florina Batalova
Vladimir Parfenov

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