RelA/NF-?B transcription factor associates with a-actinin-4

Babakov, V.N.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)

The NF-?B/RelA family of transcription factors regulates inducible transcription of a large number of genes in response to diverse stimuli. Little is known, however, about the location of NF-?B in the cytoplasm and the transport mechanism to the nucleus. We found that NF-?B is associated with the actin-binding protein a-actinin-4. NF-?B and a-actinin-4 co-localized along actin stress fibers and in membrane lamellae in A431 cells. After a 30-min stimulation with EGF or TNF-a, a-actinin-4 and p65 were found in the nucleus. Disruption of cytoskeleton by cytochalasin D prior to treatment with TNF-a led to increase of p65 nuclear translocation. Antibodies to p65 subunit of NF-?B co-immunoprecipitated a-actinin-4 from A431 cell lysates and nuclear extracts, but a-actinin-1 and ß-actin were not found in the precipitates. Affinity chromatography experiments displayed that p65 and p50 subunits of NF-?B can bind to matrix-bound chicken gizzard a-actinin. We suggest that the a-actinin-4 is important for the NF-?B nuclear translocation and its functions inside the nucleus. © 2007 Elsevier Inc. All rights reserved.

Petukhova, O.A.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)
Turoverova, L.V.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)
Kropacheva, I.V.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)
Tentler, D.G.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)
Bolshakova, A.V.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)
Podolskaya, E.P.Laboratory of Environmental and Biomedical Mass Spectrometry, Institute for Analytical Instrumentation, St. Petersburg, 198103, Russian Federation (author)
Magnusson, Karl-EricLinköpings universitet,Hälsouniversitetet,Medicinsk mikrobiologi(Swepub:liu)karma55 (author)
Pinaev, G.P.Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian Federation (author)
Department of Cell Cultures, Institute of Cytology, Tikhoretsky Ave. 4, St. Petersburg, 194064, Russian FederationLaboratory of Environmental and Biomedical Mass Spectrometry, Institute for Analytical Instrumentation, St. Petersburg, 198103, Russian Federation (creator_code:org_t)

By the author/editor: Babakov, V.N.; Petukhova, O.A.; Turoverova, L.V.; Kropacheva, I.V.; Tentler, D.G.; Bolshakova, A.V.; show more...; Podolskaya, E.P.; Magnusson, Karl- ...; Pinaev, G.P.; show less...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.