Nucleic Acids Research, Vol 24, Issue 2 386-393, Copyright © 1996 by Oxford University Press
SM Newman, O Zelenaya-Troitskaya, PS Perlman and RA Butow
DNA-protein complexes (nucleoids) are believed to be the segregating unit
of mitochondrial DNA (mtDNA) in Saccharomyces cerevisiae. A mitochondrial
HMG box protein, Abf2p, is needed for maintenance of mtDNA in cells grown
on rich dextrose medium, but is dispensible in glycerol grown cells. As
visualized by 4',6'-diamino-2-phenylindole staining, mtDNA nucleoids in
mutant cells lacking Abf2p ( delta abf2) are diffuse compared with those in
wild-type cells. We have isolated mtDNA nucleoids and characterized two
mtDNA-protein complexes, termed NCLDp-2 and NCLDs-2, containing distinct
but overlapping sets of polypeptides. This protocol yields similar nucleoid
complexes from the delta abf2 mutant, although several proteins appear
lacking from NCLDs- 2. Segments of mtDNA detected with probes to COXII,
VAR1 and ori5 sequences are equally sensitive to DNase I digestion in
NCLDs-2 and NCLDp-2 from wild-type cells and from the delta abf2 mutant.
However, COXII and VAR1 sequences are 4-to 5-fold more sensitive to DNase I
digestion of mtDNA in toluene-permeabilized mitochondria from the delta
abf2 mutant than from wild-type cells, but no difference in DNase I
sensitivity was detected with the ori5 probe. These results provide a first
indication that Abf2p influences differential organization of mtDNA
sequences.
ARTICLES
Analysis of mitochondrial DNA nucleoids in wild-type and a mutant strain of Saccharomyces cerevisiae that lacks the mitochondrial HMG box protein Abf2p
Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, 75235, USA.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
R. A. Sia, S. Carrol, L. Kalifa, C. Hochmuth, and E. A. Sia Loss of the Mitochondrial Nucleoid Protein, Abf2p, Destabilizes Repetitive DNA in the Yeast Mitochondrial Genome Genetics, January 1, 2009; 181(1): 331 - 334. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Kucej, B. Kucejova, R. Subramanian, X. J. Chen, and R. A. Butow Mitochondrial nucleoids undergo remodeling in response to metabolic cues J. Cell Sci., June 1, 2008; 121(11): 1861 - 1868. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Dai, Y.-S. Lo, A. Litvinchuk, Y.-T. Wang, W.-N. Jane, L.-J. Hsiao, and K.-S. Chiang Structural and functional characterizations of mung bean mitochondrial nucleoids Nucleic Acids Res., August 22, 2005; 33(15): 4725 - 4739. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. D. Taylor, H. Zhang, J. S. Eaton, M. S. Rodeheffer, M. A. Lebedeva, T. W. O'Rourke, W. Siede, and G. S. Shadel The Conserved Mec1/Rad53 Nuclear Checkpoint Pathway Regulates Mitochondrial DNA Copy Number in Saccharomyces cerevisiae Mol. Biol. Cell, June 1, 2005; 16(6): 3010 - 3018. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. S. Dimmer, S. Jakobs, F. Vogel, K. Altmann, and B. Westermann Mdm31 and Mdm32 are inner membrane proteins required for maintenance of mitochondrial shape and stability of mitochondrial DNA nucleoids in yeast J. Cell Biol., January 3, 2005; 168(1): 103 - 115. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. J. Youngman, A. E. A. Hobbs, S. M. Burgess, M. Srinivasan, and R. E. Jensen Mmm2p, a mitochondrial outer membrane protein required for yeast mitochondrial shape and maintenance of mtDNA nucleoids J. Cell Biol., March 1, 2004; 164(5): 677 - 688. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. F. Bogenhagen, Y. Wang, E. L. Shen, and R. Kobayashi Protein Components of Mitochondrial DNA Nucleoids in Higher Eukaryotes Mol. Cell. Proteomics, November 1, 2003; 2(11): 1205 - 1216. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Garrido, L. Griparic, E. Jokitalo, J. Wartiovaara, A. M. van der Bliek, and J. N. Spelbrink Composition and Dynamics of Human Mitochondrial Nucleoids Mol. Biol. Cell, April 1, 2003; 14(4): 1583 - 1596. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. I. Alam, T. Kanki, T. Muta, K. Ukaji, Y. Abe, H. Nakayama, K. Takio, N. Hamasaki, and D. Kang Human mitochondrial DNA is packaged with TFAM Nucleic Acids Res., March 15, 2003; 31(6): 1640 - 1645. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. M. Bateman, M. Iacovino, P. S. Perlman, and R. A. Butow Mitochondrial DNA Instability Mutants of the Bifunctional Protein Ilv5p Have Altered Organization in Mitochondria and Are Targeted for Degradation by Hsp78 and the Pim1p Protease J. Biol. Chem., November 27, 2002; 277(49): 47946 - 47953. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Dequard-Chablat and C. Alland Two Copies of mthmg1, Encoding a Novel Mitochondrial HMG-Like Protein, Delay Accumulation of Mitochondrial DNA Deletions in Podospora anserina Eukaryot. Cell, August 1, 2002; 1(4): 503 - 513. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. A. Karlok, S.-H. Jang, and J. A. Jaehning Mutations in the Yeast Mitochondrial RNA Polymerase Specificity Factor, Mtf1, Verify an Essential Role in Promoter Utilization J. Biol. Chem., July 26, 2002; 277(31): 28143 - 28149. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. M. Bateman, P. S. Perlman, and R. A. Butow Mutational Bisection of the Mitochondrial DNA Stability and Amino Acid Biosynthetic Functions of Ilv5p of Budding Yeast Genetics, July 1, 2002; 161(3): 1043 - 1052. [Abstract] [Full Text] [PDF] |
||||
![]() |
T. W. O'Rourke, N. A. Doudican, M. D. Mackereth, P. W. Doetsch, and G. S. Shadel Mitochondrial Dysfunction Due to Oxidative Mitochondrial DNA Damage Is Reduced through Cooperative Actions of Diverse Proteins Mol. Cell. Biol., June 15, 2002; 22(12): 4086 - 4093. [Abstract] [Full Text] [PDF] |
||||
![]() |
X. M. Zuo, G. D. Clark-Walker, and X. J. Chen The Mitochondrial Nucleoid Protein, Mgm101p, of Saccharomyces cerevisiae Is Involved in the Maintenance of {rho}+ and ori/rep-Devoid Petite Genomes but Is Not Required for Hypersuppressive {rho}- mtDNA Genetics, April 1, 2002; 160(4): 1389 - 1400. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. E. A. Hobbs, M. Srinivasan, J. M. McCaffery, and R. E. Jensen Mmm1p, a Mitochondrial Outer Membrane Protein, Is Connected to Mitochondrial DNA (Mtdna) Nucleoids and Required for Mtdna Stability J. Cell Biol., January 22, 2001; 152(2): 401 - 410. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Tomaska, J. Nosek, A. M. Makhov, A. Pastorakova, and J. D. Griffith Extragenomic double-stranded DNA circles in yeast with linear mitochondrial genomes: potential involvement in telomere maintenance Nucleic Acids Res., November 15, 2000; 28(22): 4479 - 4487. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Oxelmark, A. Marchini, I. Malanchi, F. Magherini, L. Jaquet, M. A. N. Hajibagheri, K. J. Blight, J.-C. Jauniaux, and M. Tommasino Mmf1p, a Novel Yeast Mitochondrial Protein Conserved throughout Evolution and Involved in Maintenance of the Mitochondrial Genome Mol. Cell. Biol., October 15, 2000; 20(20): 7784 - 7797. [Abstract] [Full Text] |
||||
![]() |
Y. Tang, G. Manfredi, M. Hirano, and E. A. Schon Maintenance of Human Rearranged Mitochondrial DNAs in Long-Term Cultured Transmitochondrial Cell Lines Mol. Biol. Cell, July 1, 2000; 11(7): 2349 - 2358. [Abstract] [Full Text] |
||||
![]() |
V. Contamine and M. Picard Maintenance and Integrity of the Mitochondrial Genome: a Plethora of Nuclear Genes in the Budding Yeast Microbiol. Mol. Biol. Rev., June 1, 2000; 64(2): 281 - 315. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. K. Lehtinen, N. Hance, A. El Meziane, M. K. Juhola, K. M. I. Juhola, R. Karhu, J. N. Spelbrink, I. J. Holt, and H. T. Jacobs Genotypic Stability, Segregation and Selection in Heteroplasmic Human Cell Lines Containing np 3243 Mutant mtDNA Genetics, January 1, 2000; 154(1): 363 - 380. [Abstract] [Full Text] |
||||
![]() |
S. Meeusen, Q. Tieu, E. Wong, E. Weiss, D. Schieltz, J. R. Yates, and J. Nunnari Mgm101p Is a Novel Component of the Mitochondrial Nucleoid That Binds DNA and Is Required for the Repair of Oxidatively Damaged Mitochondrial DNA J. Cell Biol., April 19, 1999; 145(2): 291 - 304. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. H. Cho, S. J. Ha, L. R. Kao, T. L. Megraw, and C.-B. Chae A Novel DNA-Binding Protein Bound to the Mitochondrial Inner Membrane Restores the Null Mutation of Mitochondrial Histone Abf2p in Saccharomyces cerevisiae Mol. Cell. Biol., October 1, 1998; 18(10): 5712 - 5723. [Abstract] [Full Text] |
||||
![]() |
K. Okamoto, P. S. Perlman, and R. A. Butow The Sorting of Mitochondrial DNA and Mitochondrial Proteins in Zygotes: Preferential Transmission of Mitochondrial DNA to the Medial Bud J. Cell Biol., August 10, 1998; 142(3): 613 - 623. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. M. MacAlpine, P. S. Perlman, and R. A. Butow The high mobility group protein Abf2p influences the level of yeast mitochondrial DNA recombination intermediates in vivo PNAS, June 9, 1998; 95(12): 6739 - 6743. [Abstract] [Full Text] [PDF] |
||||
![]() |
O. Zelenaya-Troitskaya, S. M. Newman, K. Okamoto, P. S. Perlman, and R. A. Butow Functions of the High Mobility Group Protein, Abf2p, in Mitochondrial DNA Segregation, Recombination and Copy Number in Saccharomyces cerevisiae Genetics, April 1, 1998; 148(4): 1763 - 1776. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. A. Kaufman, S. M. Newman, R. L. Hallberg, C. A. Slaughter, P. S. Perlman, and R. A. Butow In organello formaldehyde crosslinking of proteins to mtDNA: Identification of bifunctional proteins PNAS, July 5, 2000; 97(14): 7772 - 7777. [Abstract] [Full Text] [PDF] |
||||










