Isolation and mapping of a gene for protein synthesis initiation factor 4A and its expression during differentiation of murine erythroleukemia cells - PubMed (original) (raw)
Isolation and mapping of a gene for protein synthesis initiation factor 4A and its expression during differentiation of murine erythroleukemia cells
N S Reddy et al. Gene. 1988.
Abstract
Eukaryotic protein synthesis initiation factor 4A (eIF-4A), a 46-kDa polypeptide, is involved both in mRNA cap recognition and in the binding of mRNA to 40S ribosomal subunits. A 41-mer oligodeoxynucleotide probe was synthesized complementary to a portion of the published coding sequence of eIF-4A mRNA [Nielsen et al., Nucleic Acids Res. 13 (1985) 6867-6870] and used to screen a mouse genomic library. We have isolated and characterized a full-length clone from that library. The eIF-4A sequence is contained in eleven exons. The eleventh exon also has the 3'-nontranslated sequence and two separate polyadenylation sites. Northern-blot analysis of mouse poly(A)+RNA indicates that there are several distinct mRNA species coding for eIF-4A. Two of these contain the same coding sequence and differ only in the length of the 3'-nontranslated region. Two of the eIF-4A mRNAs are therefore likely to be the result of differential processing at the 3'-end. We have used a fragment of the genomic clone to measure the steady-state levels of eIF-4A mRNA during the induced differentiation of murine erythroleukemia cells. S1 nuclease protection experiments demonstrated that by the fourth day after induction eIF-4A mRNA declined to 25% of its steady-state level in uninduced cells. In contrast, the steady-state level of beta-globin mRNA increased dramatically during differentiation. In vitro transcription assays using nuclei isolated from uninduced and induced cells show that the rate of transcription of eIF-4A mRNA was 40% greater in differentiated cells, indicating a posttranscriptional component is involved in the regulation of the steady-state mRNA level.
Similar articles
- Cloning of eukaryotic protein synthesis initiation factor genes: isolation and characterization of cDNA clones encoding factor eIF-4A.
Nielsen PJ, McMaster GK, Trachsel H. Nielsen PJ, et al. Nucleic Acids Res. 1985 Oct 11;13(19):6867-80. doi: 10.1093/nar/13.19.6867. Nucleic Acids Res. 1985. PMID: 3840589 Free PMC article. - Characterization of the 46,000-dalton subunit of eIF-4F.
Conroy SC, Dever TE, Owens CL, Merrick WC. Conroy SC, et al. Arch Biochem Biophys. 1990 Nov 1;282(2):363-71. doi: 10.1016/0003-9861(90)90130-q. Arch Biochem Biophys. 1990. PMID: 2241157 - [Gene expression of human eukaryotic initiation factor-4E for protein synthesis and study of its recognition mechanism of mRNA cap structure].
Morino S, Ueda H, Doi M, Ishida T. Morino S, et al. Yakugaku Zasshi. 1995 Jun;115(6):401-19. doi: 10.1248/yakushi1947.115.6_401. Yakugaku Zasshi. 1995. PMID: 7666354 Review. Japanese. - Eukaryotic protein synthesis: an in vitro analysis.
Merrick WC. Merrick WC. Biochimie. 1994;76(9):822-30. doi: 10.1016/0300-9084(94)90183-x. Biochimie. 1994. PMID: 7880898 Review.
Cited by
- The Roles of Antisense Long Noncoding RNAs in Tumorigenesis and Development through Cis-Regulation of Neighbouring Genes.
Jiang B, Yuan Y, Yi T, Dang W. Jiang B, et al. Biomolecules. 2023 Apr 18;13(4):684. doi: 10.3390/biom13040684. Biomolecules. 2023. PMID: 37189431 Free PMC article. Review. - LncRNA GABPB1-AS1 and GABPB1 regulate oxidative stress during erastin-induced ferroptosis in HepG2 hepatocellular carcinoma cells.
Qi W, Li Z, Xia L, Dai J, Zhang Q, Wu C, Xu S. Qi W, et al. Sci Rep. 2019 Nov 7;9(1):16185. doi: 10.1038/s41598-019-52837-8. Sci Rep. 2019. PMID: 31700067 Free PMC article. - The host gene for intronic U17 small nucleolar RNAs in mammals has no protein-coding potential and is a member of the 5'-terminal oligopyrimidine gene family.
Pelczar P, Filipowicz W. Pelczar P, et al. Mol Cell Biol. 1998 Aug;18(8):4509-18. doi: 10.1128/MCB.18.8.4509. Mol Cell Biol. 1998. PMID: 9671460 Free PMC article. - ZnT-3, a putative transporter of zinc into synaptic vesicles.
Palmiter RD, Cole TB, Quaife CJ, Findley SD. Palmiter RD, et al. Proc Natl Acad Sci U S A. 1996 Dec 10;93(25):14934-9. doi: 10.1073/pnas.93.25.14934. Proc Natl Acad Sci U S A. 1996. PMID: 8962159 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Molecular Biology Databases
Miscellaneous