Eukaryotic mRNA cap binding protein: purification by affinity chromatography on sepharose-coupled m7GDP
- PMID: 291969
- PMCID: PMC411571
- DOI: 10.1073/pnas.76.9.4345
Eukaryotic mRNA cap binding protein: purification by affinity chromatography on sepharose-coupled m7GDP
Abstract
A 24,000-dalton polypeptide that binds strongly and can be specifically crosslinked to the 5'-terminal cap structure m7GpppN in eukaryotic mRNAs has been detected in protein synthesis initiation factor preparations [Proc. Natl. Acad. Sci. USA (1978) 75, 4843--4847]. This polypeptide has been purified to apparent homogeneity by one chromatographic passage through an affinity resin prepared by coupling the levulinic acid O2',3'-acetal of m7GDP to AH-Sepharose 4B. Translation, in HeLa cell extracts, of capped mRNAs including Sindbis virus, reovirus, and rabbit globin mRNAs was stimulated by the cap-binding protein under conditions that did not increase translation of noncapped RNAs of encephalomyocarditis virus and satellite tobacco necrosis virus.
Similar articles
-
Inhibition of eukaryotic translation by nucleoside 5'-monophosphate analogues of mRNA 5'-cap: changes in N7 substituent affect analogue activity.Biochemistry. 1989 May 30;28(11):4771-8. doi: 10.1021/bi00437a038. Biochemistry. 1989. PMID: 2548592
-
Two forms of purified m7G-cap binding protein with different effects on capped mRNA translation in extracts of uninfected and poliovirus-infected HeLa cells.J Biol Chem. 1981 Aug 10;256(15):7691-4. J Biol Chem. 1981. PMID: 6267020
-
Design and preparation of affinity columns for the purification of eukaryotic messenger ribonucleic acid cap binding protein.Biochemistry. 1981 Nov 10;20(23):6570-7. doi: 10.1021/bi00526a008. Biochemistry. 1981. PMID: 7306524
-
Potential therapeutic applications of RNA cap analogs.Future Med Chem. 2013 Jun;5(10):1141-72. doi: 10.4155/fmc.13.96. Future Med Chem. 2013. PMID: 23795970 Review.
-
MicroRNAs repress translation of m7Gppp-capped target mRNAs in vitro by inhibiting initiation and promoting deadenylation.Genes Dev. 2007 Aug 15;21(16):1975-82. doi: 10.1101/gad.1591507. Genes Dev. 2007. PMID: 17699746 Review. No abstract available.
Cited by
-
Targeting the eIF4F translation initiation complex: a critical nexus for cancer development.Cancer Res. 2015 Jan 15;75(2):250-63. doi: 10.1158/0008-5472.CAN-14-2789. Cancer Res. 2015. PMID: 25593033 Free PMC article. Review.
-
The role of eIF4E in response and acquired resistance to vemurafenib in melanoma.J Invest Dermatol. 2015 May;135(5):1368-1376. doi: 10.1038/jid.2015.11. Epub 2015 Jan 23. J Invest Dermatol. 2015. PMID: 25615552
-
Structural features of the 5' noncoding region of the rabbit globin messenger RNAs engaged in translation.Proc Natl Acad Sci U S A. 1986 Feb;83(4):902-6. doi: 10.1073/pnas.83.4.902. Proc Natl Acad Sci U S A. 1986. PMID: 3006032 Free PMC article.
-
Viral and cellular mRNA capping: past and prospects.Adv Virus Res. 2000;55:135-84. doi: 10.1016/s0065-3527(00)55003-9. Adv Virus Res. 2000. PMID: 11050942 Free PMC article. Review.
-
Differential role for host translation factors in host and viral protein synthesis during human cytomegalovirus infection.J Virol. 2014 Feb;88(3):1473-83. doi: 10.1128/JVI.02321-13. Epub 2013 Nov 6. J Virol. 2014. PMID: 24198422 Free PMC article.
References
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Other Literature Sources
Miscellaneous