Abstract
Thymosin beta 4, containing 43 amino acids and acetylated at the NH2 terminus, is synthesized in vitro in a rabbit reticulocyte lysate or in a yeast protein-synthesis system in the presence of mRNA from rat spleen. The product formed was identified as beta 4 by immunoprecipitation by a specific anti-beta 4 antiserum, comigration with authentic beta 4 in NaDodSO4/polyacrylamide gel electrophoresis and in HPLC, and identity of peptide fragments. The immunoprecipitable product generated in the wheat germ protein-synthesizing system emerged slightly ahead of beta 4 in HPLC and appeared to lack the NH2-terminal acetyl group. There was no evidence for formation of a larger polypeptide precursor of beta 4 in any of the three systems used. In sucrose density gradient centrifugation, the mRNA coding for beta 4 was recovered in the 7-8S mRNA fraction.
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- Aviv H., Leder P. Purification of biologically active globin messenger RNA by chromatography on oligothymidylic acid-cellulose. Proc Natl Acad Sci U S A. 1972 Jun;69(6):1408–1412. doi: 10.1073/pnas.69.6.1408. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bell G. I., Swain W. F., Pictet R., Cordell B., Goodman H. M., Rutter W. J. Nucleotide sequence of a cDNA clone encoding human preproinsulin. Nature. 1979 Nov 29;282(5738):525–527. doi: 10.1038/282525a0. [DOI] [PubMed] [Google Scholar]
- Bloemendal H. The vertebrate eye lens. Science. 1977 Jul 8;197(4299):127–138. doi: 10.1126/science.877544. [DOI] [PubMed] [Google Scholar]
- Chirgwin J. M., Przybyla A. E., MacDonald R. J., Rutter W. J. Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochemistry. 1979 Nov 27;18(24):5294–5299. doi: 10.1021/bi00591a005. [DOI] [PubMed] [Google Scholar]
- Comb M., Seeburg P. H., Adelman J., Eiden L., Herbert E. Primary structure of the human Met- and Leu-enkephalin precursor and its mRNA. Nature. 1982 Feb 25;295(5851):663–666. doi: 10.1038/295663a0. [DOI] [PubMed] [Google Scholar]
- Davies P. L., Roach A. H., Hew C. L. DNA sequence coding for an antifreeze protein precursor from winter flounder. Proc Natl Acad Sci U S A. 1982 Jan;79(2):335–339. doi: 10.1073/pnas.79.2.335. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Docherty K., Steiner D. F. Post-translational proteolysis in polypeptide hormone biosynthesis. Annu Rev Physiol. 1982;44:625–638. doi: 10.1146/annurev.ph.44.030182.003205. [DOI] [PubMed] [Google Scholar]
- Eisenman R., Shaikh R., Mason W. S. Identification of an avian oncovirus polyprotein in uninfected chick cells. Cell. 1978 May;14(1):89–104. doi: 10.1016/0092-8674(78)90304-5. [DOI] [PubMed] [Google Scholar]
- El-Dorry H. A., MacGregor J. S. Rat and rabbit liver mRNAs code for fructose 1,6-bisphosphatases that differ in molecular weight. Biochem Biophys Res Commun. 1982 Aug 31;107(4):1384–1389. doi: 10.1016/s0006-291x(82)80151-4. [DOI] [PubMed] [Google Scholar]
- Gedamu L., Dixon G. H. Assay of protamine messenger RNA from rainbow trout testis. J Biol Chem. 1976 Mar 10;251(5):1446–1454. [PubMed] [Google Scholar]
- Gedamu L., Dixon G. H. Purification and properties of biologically active rainbow trout testis protamine mRNA. J Biol Chem. 1976 Mar 10;251(5):1455–1463. [PubMed] [Google Scholar]
- Gubler U., Kilpatrick D. L., Seeburg P. H., Gage L. P., Udenfriend S. Detection and partial characterization of proenkephalin mRNA. Proc Natl Acad Sci U S A. 1981 Sep;78(9):5484–5487. doi: 10.1073/pnas.78.9.5484. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hannappel E., Davoust S., Horecker B. L. Isolation of peptides from calf thymus. Biochem Biophys Res Commun. 1982 Jan 15;104(1):266–271. doi: 10.1016/0006-291x(82)91969-6. [DOI] [PubMed] [Google Scholar]
- Hannappel E., Xu G. J., Morgan J., Hempstead J., Horecker B. L. Thymosin beta 4: a ubiquitous peptide in rat and mouse tissues. Proc Natl Acad Sci U S A. 1982 Apr;79(7):2172–2175. doi: 10.1073/pnas.79.7.2172. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kedes L. H. Histone genes and histone messengers. Annu Rev Biochem. 1979;48:837–870. doi: 10.1146/annurev.bi.48.070179.004201. [DOI] [PubMed] [Google Scholar]
- Kenny C., Moschera J. A., Stein S. Purification of human fibroblast interferon produced in the absence of serum by Cibacron Blue F3GA-Agarose and high-performance liquid chromatography. Methods Enzymol. 1981;78(Pt A):435–447. doi: 10.1016/0076-6879(81)78154-0. [DOI] [PubMed] [Google Scholar]
- Kessler S. W. Rapid isolation of antigens from cells with a staphylococcal protein A-antibody adsorbent: parameters of the interaction of antibody-antigen complexes with protein A. J Immunol. 1975 Dec;115(6):1617–1624. [PubMed] [Google Scholar]
- Kido H., Vita A., Hannappel E., Horecker B. L. Aminoterminal acetylation of synthetic N alpha-desacetyl thymosin alpha 1. Arch Biochem Biophys. 1981 Apr 15;208(1):95–100. doi: 10.1016/0003-9861(81)90127-2. [DOI] [PubMed] [Google Scholar]
- Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
- Land H., Schütz G., Schmale H., Richter D. Nucleotide sequence of cloned cDNA encoding bovine arginine vasopressin-neurophysin II precursor. Nature. 1982 Jan 28;295(5847):299–303. doi: 10.1038/295299a0. [DOI] [PubMed] [Google Scholar]
- Low T. L., Hu S. K., Goldstein A. L. Complete amino acid sequence of bovine thymosin beta 4: a thymic hormone that induces terminal deoxynucleotidyl transferase activity in thymocyte populations. Proc Natl Acad Sci U S A. 1981 Feb;78(2):1162–1166. doi: 10.1073/pnas.78.2.1162. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nakanishi S., Inoue A., Kita T., Nakamura M., Chang A. C., Cohen S. N., Numa S. Nucleotide sequence of cloned cDNA for bovine corticotropin-beta-lipotropin precursor. Nature. 1979 Mar 29;278(5703):423–427. doi: 10.1038/278423a0. [DOI] [PubMed] [Google Scholar]
- Noda M., Furutani Y., Takahashi H., Toyosato M., Hirose T., Inayama S., Nakanishi S., Numa S. Cloning and sequence analysis of cDNA for bovine adrenal preproenkephalin. Nature. 1982 Jan 21;295(5846):202–206. doi: 10.1038/295202a0. [DOI] [PubMed] [Google Scholar]
- Palmiter R. D. Prevention of NH2-terminal acetylation of proteins synthesized in cell-free systems. J Biol Chem. 1977 Dec 25;252(24):8781–8783. [PubMed] [Google Scholar]
- Pelham H. R., Jackson R. J. An efficient mRNA-dependent translation system from reticulocyte lysates. Eur J Biochem. 1976 Aug 1;67(1):247–256. doi: 10.1111/j.1432-1033.1976.tb10656.x. [DOI] [PubMed] [Google Scholar]
- Rebar R. W., Miyake A., Low T. L., Goldstein A. L. Thymosin stimulates secretion of luteinizing hormone-releasing factor. Science. 1981 Nov 6;214(4521):669–671. doi: 10.1126/science.7027442. [DOI] [PubMed] [Google Scholar]
- Roberts J. L., Herbert E. Characterization of a common precursor to corticotropin and beta-lipotropin: cell-free synthesis of the precursor and identification of corticotropin peptides in the molecule. Proc Natl Acad Sci U S A. 1977 Nov;74(11):4826–4830. doi: 10.1073/pnas.74.11.4826. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wodnar-Filipowicz A., Szczesna E., Zan-Kowalczewska M., Muthukrishnan S., Szybiak U., Legocki A. B., Filipowicz W. 5'-Terminal 7-methylguanosine and mRNA function. The effect of enzymatic decapping and of cap analogs on translation of tobacco-mosaic-virus RNA and globin mRNA in vitro. Eur J Biochem. 1978 Dec 1;92(1):69–80. doi: 10.1111/j.1432-1033.1978.tb12724.x. [DOI] [PubMed] [Google Scholar]

