1
|
Li Y, Holmes WB, Appling DR, RajBhandary UL. Initiation of protein synthesis in Saccharomyces cerevisiae mitochondria without formylation of the initiator tRNA. J Bacteriol 2000; 182:2886-92. [PMID: 10781559 PMCID: PMC101999 DOI: 10.1128/jb.182.10.2886-2892.2000] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Protein synthesis in eukaryotic organelles such as mitochondria and chloroplasts is widely believed to require a formylated initiator methionyl tRNA (fMet-tRNA(fMet)) for initiation. Here we show that initiation of protein synthesis in yeast mitochondria can occur without formylation of the initiator methionyl-tRNA (Met-tRNA(fMet)). The formylation reaction is catalyzed by methionyl-tRNA formyltransferase (MTF) located in mitochondria and uses N(10)-formyltetrahydrofolate (10-formyl-THF) as the formyl donor. We have studied yeast mutants carrying chromosomal disruptions of the genes encoding the mitochondrial C(1)-tetrahydrofolate (C(1)-THF) synthase (MIS1), necessary for synthesis of 10-formyl-THF, and the methionyl-tRNA formyltransferase (open reading frame YBL013W; designated FMT1). A direct analysis of mitochondrial tRNAs using gel electrophoresis systems that can separate fMet-tRNA(fMet), Met-tRNA(fMet), and tRNA(fMet) shows that there is no formylation in vivo of the mitochondrial initiator Met-tRNA in these strains. In contrast, the initiator Met-tRNA is formylated in the respective "wild-type" parental strains. In spite of the absence of fMet-tRNA(fMet), the mutant strains exhibited normal mitochondrial protein synthesis and function, as evidenced by normal growth on nonfermentable carbon sources in rich media and normal frequencies of generation of petite colonies. The only growth phenotype observed was a longer lag time during growth on nonfermentable carbon sources in minimal media for the mis1 deletion strain but not for the fmt1 deletion strain.
Collapse
Affiliation(s)
- Y Li
- Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | | | | |
Collapse
|
2
|
Lee C, Timms K, Trotman C, Tate W. Isolation of a rat mitochondrial release factor. Accommodation of the changed genetic code for termination. J Biol Chem 1987. [DOI: 10.1016/s0021-9258(18)61386-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
3
|
|
4
|
Sebald W, Graf T, Lukins HB. The dicyclohexylcarbodiimide-binding protein of the mitochondrial ATPase complex from Neurospora crassa and Saccharomyces cerevisiae. Identification and isolation. EUROPEAN JOURNAL OF BIOCHEMISTRY 1979; 93:587-99. [PMID: 154405 DOI: 10.1111/j.1432-1033.1979.tb12859.x] [Citation(s) in RCA: 146] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Incubation of mitochondria from Neurospora crassa and Saccharomyces cerevisiae with the radioactive ATPase inhibitor [14C]dicyclohexylcarbodiimide results in the irreversible and rather specific labelling of a low-molecular-weight polypeptide. This dicyclohexylcarbodiimide-binding protein is identical with the smallest subunit (Mr 8000) of the mitochondrial ATPase complex, and it occurs as oligomer, probably as hexamer, in the enzyme protein. The dicyclohexylcarbodiimide-binding protein is extracted from whole mitochondria with neutral chloroform/methanol both in the free and in the inhibitor-modified form. In Neurospora and yeast, this extraction is highly selective and the protein is obtained in homogeneous form when the mitochondria have been prewashed with certain organic solvents. The bound dicyclohexylcarbodiimide label is enriched in the purified protein up to 50-fold compared to whole mitochondria. Based on the amino acid analysis, the dicyclohexylcarbodiimide-binding protein from Neurospora and yeast consists of at least 81 and 76 residues, respectively. The content of hydrophobic residues is extremely high. Histidine and tryptophan are absent. The N-terminal amino acid is tyrosine in Neurospora and formylmethionine in yeast.
Collapse
|
5
|
Neupert W, Miller F, Michel R, Hallermayer G. Mitochondrial ribosomes of Neurospora crassa: isolation, analysis, and use. Methods Enzymol 1979; 56:79-92. [PMID: 156869 DOI: 10.1016/0076-6879(79)56011-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
6
|
|
7
|
|
8
|
Dependence of mitochondrial protein synthesis initiation on formylation of the initiator methionyl-tRNAf. J Biol Chem 1977. [DOI: 10.1016/s0021-9258(17)40489-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
9
|
Tiboni O, Di Pasquale G, Ciferri O. Ribosomes and translation factors from isolated spinach chloroplasts. ACTA ACUST UNITED AC 1976. [DOI: 10.1016/0304-4211(76)90124-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
10
|
Alscher R, Smith MA, Petersen LW, Huffaker RC, Criddle RS. In vitro synthesis of the large subunit of ribulose diphosphate carboxylase on 70 S ribosomes. Arch Biochem Biophys 1976; 174:216-25. [PMID: 938052 DOI: 10.1016/0003-9861(76)90341-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
11
|
Choci WY, Laird CD. DNA and polyribosome-like structures in lysates of mitochondria of Drosophila melanogaster. J Mol Biol 1976; 100:493-518. [PMID: 815554 DOI: 10.1016/s0022-2836(76)80042-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
12
|
|
13
|
Pirali G, Somma S, Lancini GC, Sala F. Inhibition of peptide chain initiation in Escherichia coli by thermorubin. BIOCHIMICA ET BIOPHYSICA ACTA 1974; 366:310-8. [PMID: 4609482 DOI: 10.1016/0005-2787(74)90291-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
14
|
Sala F, Bazzicalupo M, Parisi B. Protein synthesis in Bacillus subtilis: differential effect of potassium ions on in vitro peptide chain initiation and elongation. J Bacteriol 1974; 119:821-9. [PMID: 4212281 PMCID: PMC245686 DOI: 10.1128/jb.119.3.821-829.1974] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The preparation and fractionation of a highly active and stable in vitro protein-synthesizing system from Bacillus subtilis is described. Potassium satisfied the requirement for a monovalent ion when the initiation factor-dependent binding of formyl-methionyl-transfer ribonucleic acid and synthesis of formyl-methionyl-puromycin were assayed, whereas it inhibited the reactions for polyphenylalanine synthesis. On the other hand, the ammonium ion satisfied the requirement for all assayed reactions. The in vitro experimental evidence suggested that potassium is an inhibitor of one or a few specific reactions involved in peptide chain elongation in B. subtilis.
Collapse
|
15
|
Küntzel H, Blossey HC. Translation products in vitro of mitochondrial messenger RNA from Neurospora crassa. EUROPEAN JOURNAL OF BIOCHEMISTRY 1974; 47:165-71. [PMID: 4279820 DOI: 10.1111/j.1432-1033.1974.tb03679.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
16
|
|
17
|
|
18
|
|
19
|
Agsteribbe E, Kroon AM. Dissociation of mitochondrial ribosomes of neurospora crassa by a bacterial dissociation factor. Biochem Biophys Res Commun 1973; 51:8-13. [PMID: 4266973 DOI: 10.1016/0006-291x(73)90499-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
20
|
|
21
|
Blossey HC, Küntzel H. In vitro translation of mitochondrial DNA from Neurospora crassa. FEBS Lett 1972; 24:335-338. [PMID: 11946701 DOI: 10.1016/0014-5793(72)80385-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H C. Blossey
- Max-Planck-Institut für experimentelle Medizin, Abteilung Chemie, 3400, Göttingen, Germany
| | | |
Collapse
|
22
|
Barath Z, Küntzel H. Cooperation of mitochondrial and nuclear genes specifying the mitochondrial genetic apparatus in Neurospora crassa. Proc Natl Acad Sci U S A 1972; 69:1371-4. [PMID: 4260903 PMCID: PMC426704 DOI: 10.1073/pnas.69.6.1371] [Citation(s) in RCA: 105] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Enzymes involved in the expression of the mitochondrial genome in Neurospora crassa are induced by chloramphenicol and ethidium bromide, which block transcription and translation of mitochondrial DNA. It is concluded that most, if not all, proteins of the mitochondrial genetic apparatus are coded by nuclear genes, synthesized on cytoplasmic ribosomes, and controlled by a repressor-like mitochondrial gene product. A model explaining the coordination of nuclear and mitochondrial division cycles by repressor control is discussed.
Collapse
|
23
|
|
24
|
Brega A, Baglioni C. A study of mitochondrial protein synthesis in intact HeLa cells. EUROPEAN JOURNAL OF BIOCHEMISTRY 1971; 22:415-22. [PMID: 5132192 DOI: 10.1111/j.1432-1033.1971.tb01559.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
25
|
Schäfer KP, Bugge G, Grandi M, Küntzel H. Transcription of mitochondrial DNA in vitro from Neurospora crassa. EUROPEAN JOURNAL OF BIOCHEMISTRY 1971; 21:478-88. [PMID: 4938619 DOI: 10.1111/j.1432-1033.1971.tb01493.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
26
|
Fusidic acid resistance of mitochondrial G factor from Neurospora crassa. Biochem Biophys Res Commun 1971; 44:864-71. [PMID: 4942120 DOI: 10.1016/0006-291x(71)90791-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
27
|
Küntzel H, Schäfer KP. Mitochondrial RNA polymerase from Neurospora crassa. NATURE: NEW BIOLOGY 1971; 231:265-9. [PMID: 4933004 DOI: 10.1038/newbio231265a0] [Citation(s) in RCA: 87] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
28
|
Parisi B, Cella R. Origin of the ribosome specific factors responsible for peptide chain elongation in yeast. FEBS Lett 1971; 14:209-213. [PMID: 11945760 DOI: 10.1016/0014-5793(71)80619-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- B Parisi
- Laboratorio di Genetica Biochimica ed Evoluzionistica del C.N.R., Pavia and Istituto di Genetica, University of Pavia, 27100, Pavia, Italy
| | | |
Collapse
|
29
|
Affiliation(s)
- P Borst
- Department of Medical Enzymology, Laboratory of Biochemistry, University of Amsterdam, Amsterdam, The Netherlands
| | | |
Collapse
|
30
|
Lizardi PM, Luck DJ. Absence of a 5S RNA complnent in the mitochondrial ribosomes of Neurospora crassa. NATURE: NEW BIOLOGY 1971; 229:140-2. [PMID: 5280093 DOI: 10.1038/newbio229140a0] [Citation(s) in RCA: 84] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
31
|
Perani A, Tiboni O, Ciferri O. Absolute ribosome specificity of two sets of transfer factors isolated from Saccharomyces fragilis. J Mol Biol 1971; 55:107-12. [PMID: 5548886 DOI: 10.1016/0022-2836(71)90284-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
32
|
Bianchetti R, Lucchini G, Sartirana ML. Endogenous systhesis of formyl-methionine peptides in isolated mitochondria and chloroplasts. Biochem Biophys Res Commun 1971; 42:97-102. [PMID: 5546353 DOI: 10.1016/0006-291x(71)90367-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
33
|
|
34
|
Sala F, Sensi S, Parisi B. Peptide chain initiation in a species of Nostoc and in chloroplasts of Euglena gracilis. FEBS Lett 1970; 10:89-91. [PMID: 11945364 DOI: 10.1016/0014-5793(70)80423-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- F Sala
- Institutes of Genetics and Botany, University of Pavia, 27100, Pavia, Italy
| | | | | |
Collapse
|