» Articles » PMID: 1448092

Molecular Cloning of Cellular Genes Encoding Retinoblastoma-associated Proteins: Identification of a Gene with Properties of the Transcription Factor E2F

Overview
Journal Mol Cell Biol
Specialty Cell Biology
Date 1992 Dec 1
PMID 1448092
Citations 112
Authors
Affiliations
Soon will be listed here.
Abstract

The retinoblastoma protein interacts with a number of cellular proteins to form complexes which are probably crucial for its normal physiological function. To identify these proteins, we isolated nine distinct clones by direct screening of cDNA expression libraries using purified RB protein as a probe. One of these clones, Ap12, is expressed predominantly at the G1-S boundary and in the S phase of the cell cycle. The nucleotide sequence of Ap12 has features characteristic of transcription factors. The C-terminal region binds to unphosphorylated RB in regions similar to those to which T antigen binds and contains a transactivation domain. A region containing a potential leucine zipper flanked by basic residues is able to bind an E2F recognition sequence specifically. Expression of Ap12 in mammalian cells significantly enhances E2F-dependent transcriptional activity. These results suggest that Ap12 encodes a protein with properties known to be characteristic of transcription factor E2F.

Citing Articles

The N-Terminal Region of the Transcription Factor E2F1 Contains a Novel Transactivation Domain and Recruits General Transcription Factor GTF2H2.

Zhao L, Nakajima R, Zhou Y, Shirasawa M, Fikriyanti M, Kamiya Y Biomolecules. 2024; 14(11).

PMID: 39595534 PMC: 11592155. DOI: 10.3390/biom14111357.


Identification of SRF-E2F1 fusion transcript in EWSR-negative myoepithelioma of the soft tissue.

Urbini M, Astolfi A, Indio V, Tarantino G, Serravalle S, Saponara M Oncotarget. 2017; 8(36):60036-60045.

PMID: 28947952 PMC: 5601120. DOI: 10.18632/oncotarget.17958.


E2F1 controls germ cell apoptosis during the first wave of spermatogenesis.

Rotgers E, Nurmio M, Pietila E, Cisneros-Montalvo S, Toppari J Andrology. 2015; 3(5):1000-14.

PMID: 26311345 PMC: 5042044. DOI: 10.1111/andr.12090.


PRMT4-mediated arginine methylation negatively regulates retinoblastoma tumor suppressor protein and promotes E2F-1 dissociation.

Kim K, Wang D, Campbell M, Huerta S, Shevchenko B, Izumiya C Mol Cell Biol. 2014; 35(1):238-48.

PMID: 25348716 PMC: 4295381. DOI: 10.1128/MCB.00945-14.


Retinoblastoma protein (RB) interacts with E2F3 to control terminal differentiation of Sertoli cells.

Rotgers E, Rivero-Muller A, Nurmio M, Parvinen M, Guillou F, Huhtaniemi I Cell Death Dis. 2014; 5:e1274.

PMID: 24901045 PMC: 4611710. DOI: 10.1038/cddis.2014.232.


References
1.
Huang P, Jones R, Haskell K, Vuocolo G, Hanobik M, Huber H . Cloning of cDNAs for cellular proteins that bind to the retinoblastoma gene product. Nature. 1991; 352(6332):251-4. DOI: 10.1038/352251a0. View

2.
Rustgi A, Dyson N, Bernards R . Amino-terminal domains of c-myc and N-myc proteins mediate binding to the retinoblastoma gene product. Nature. 1991; 352(6335):541-4. DOI: 10.1038/352541a0. View

3.
Sumegi J, Uzvolgyi E, Klein G . Expression of the RB gene under the control of MuLV-LTR suppresses tumorigenicity of WERI-Rb-27 retinoblastoma cells in immunodefective mice. Cell Growth Differ. 1990; 1(5):247-50. View

4.
Smith D, Johnson K . Single-step purification of polypeptides expressed in Escherichia coli as fusions with glutathione S-transferase. Gene. 1988; 67(1):31-40. DOI: 10.1016/0378-1119(88)90005-4. View

5.
Lin B, GRUENWALD S, Morla A, Lee W, Wang J . Retinoblastoma cancer suppressor gene product is a substrate of the cell cycle regulator cdc2 kinase. EMBO J. 1991; 10(4):857-64. PMC: 452726. DOI: 10.1002/j.1460-2075.1991.tb08018.x. View