Transcription-dependent rearrangements of actin and nuclear myosin I in the nucleolus

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F10%3A00351320" target="_blank" >RIV/67985823:_____/10:00351320 - isvavai.cz</a>

Alternative codes found

RIV/68378050:_____/10:00351320

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Transcription-dependent rearrangements of actin and nuclear myosin I in the nucleolus

Original language description

Nuclear actin and nuclear myosin I (NMI) are important players in transcription of ribosomal genes. Transcription of rDNA takes place in highly organized intranuclear compartment, the nucleolus. In this study, we characterized the localization of these two proteins within the nucleolus of HeLa cells with high structural resolution by means of electron microscopy and gold-immunolabeling. We demonstrate that both actin and NMI are localized in specific compartments within the nucleolus, and the distribution of NMI is transcription-dependent. Moreover, a pool of NMI is present in the foci containing nascent rRNA transcripts. Actin, in turn, is present both in transcriptionally active and inactive regions of the nucleolus and colocalizes with RNA polymerase I and UBF. Our data support the involvement of actin and NMI in rDNA transcription and point out to other functions of these proteins in the nucleolus, such as rRNA maturation and maintenance of nucleolar architecture.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EB - Genetics and molecular biology

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Histochemistry and Cell Biology

ISSN

0948-6143

e-ISSN

—

Volume of the periodical

134

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

7

Pages from-to

—

UT code for WoS article

000281249500002

EID of the result in the Scopus database

—