Abstract
The polypeptide release factor gene, eRF1, of Blepharisma japonicum (Bj-eRF1) was cloned and sequenced. Its coding region was 1314 base pairs and encodes a protein of 437 amino acids. The cloned gene was expressed in Escherichia coli and the recombinant Bj-eRF1 polypeptide was purified by Ni2+-nitrilotriacetic acid agarose and Superose12 chromatography. Pull-down analysis showed that the recombinant Bj-eRF1 interacts with the heterologously-expressed release factor, eRF3C, of Euplotes octocarinatus.
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Bertram G, Innes S, Minella O, Richardson JP, Stansfield I (2001) Endless possibilities: translation termination and stop codon recognition. Microbiology 147: 255–269.
Karamyshev AL, Ito K, Nakamura Y (1999) Polypeptide release factor eRF1 from Tetrahymena thermophila: cDNA cloning, purification and complex formation with yeast eRF3. FEBS Lett. 457: 483–488.
Kervestin S, Garnier OA, Karamyshev AL, Ito K, Nakamura Y, Meyer E, Jean-Jean O (2002) Isolation and expression of two genes encoding eukaryotic release factor 1 from Paramecium teraurelia. J. Eukaryot. Microbiol. 49: 374–382.
Liang A, Heckmann K (1993) Blepharisma uses UAA as a termination codon. Naturwissenschaften 80: 225–226.
Liang A, Bruenen-Nieweler C, Muramatsu T, Kuchino Y, Beier H, Heckmann K (2001) The ciliate Euplotes octocarinatus expresses two polypeptide release factors of the type eRF1. Gene 262: 161–168.
Lozupone CA, Knight RD, Landweber LF (2001) The molecular basis of nuclear genetic code change in ciliates. Curr. Biol. 23: 65–74.
Muramatsu T, Heckmann K, Kitanaka C, Kuchino Y (2001) Molecular mechanism of stop codon recognition by eRF1: a wobble hypothesis for peptide anticodons. FEBS Lett. 488: 105–109.
Nakamura Y, Ito K (1998) How protein reads the stop codon and terminates translation. Genes Cells 3: 265–278.
Nakamura Y, Ito K (2003) Making sense of mimic in translation termination. TRENDS Biochem. Sci. 28: 99–105.
Song H, Mugnier P, Das AK, Webb HM, Evans DR, Tuite MF, Hemmings BA, Barford D (2000) The crystal structure of human eukaryotic release factor eRF1-mechanism of stop codon recognition and peptidyl-tRNA hydrolysis. Cell 100: 311–321.
Stansfield I, Jones KM, Kushnirov VV, Dagkesamanskaya AR, Poznyakovski AI, Paushkin SV, Nierras CR, Cox BS, Ter-Avanesyan MD, Tuite MF (1995) The products of the SUP45 (eRF1) and SUP35 genes interact to mediate translation termination in Saccharomyces cerevisiae. EMBO J. 14: 4365–4373.
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Wang, W., Chai, Bf., Heckmann, K. et al. Cloning, characterization and expression of the polypeptide release factor gene, eRF1, of Blepharisma japonicum . Biotechnology Letters 26, 959–963 (2004). https://doi.org/10.1023/B:BILE.0000030039.42124.36
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DOI: https://doi.org/10.1023/B:BILE.0000030039.42124.36