Gene structure of the human mitochondrial outer membrane receptor Tom20 and evolutionary study of its family of processed pseudogenes

被引:19
作者
Hernández, JM [1 ]
Giner, P [1 ]
Hernández-Yago, J [1 ]
机构
[1] Fdn Valenciana Invest Biomed, Inst Invest Citol, Valencia 46010, Spain
关键词
human Tom20; mitochondria; mitochondrial protein receptor; molecular evolution; nuclear gene;
D O I
10.1016/S0378-1119(99)00409-6
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The structure of the human gene encoding the mitochondrial outer membrane receptor Tom20 has been determined from overlapping clones obtained using PCR-based techniques. The 20 kb human Tom20 gene (hTom20) consists of five exons separated by four introns. The 5' flanking region presents features common with other nuclear genes encoding mitochondrial proteins. Comparison with its homologs and putative homologs in other species has revealed common features in their TPR motifs and other relevant protein domains. Aspects concerning evolutionary origins of the family of processed pseudogenes of hTom20 are also discussed. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:283 / 291
页数:9
相关论文
共 38 条
[1]   Gapped BLAST and PSI-BLAST: a new generation of protein database search programs [J].
Altschul, SF ;
Madden, TL ;
Schaffer, AA ;
Zhang, JH ;
Zhang, Z ;
Miller, W ;
Lipman, DJ .
NUCLEIC ACIDS RESEARCH, 1997, 25 (17) :3389-3402
[2]   INSERTIONS AND DUPLICATIONS OF MTDNA IN THE NUCLEAR GENOMES OF OLD-WORLD MONKEYS AND HOMINOIDS [J].
COLLURA, RV ;
STEWART, CB .
NATURE, 1995, 378 (6556) :485-489
[3]   Characterization of the human SDHC gene encoding one of the integral membrane proteins of succinate-quinone oxidoreductase in mitochondria [J].
Elbehti-Green, A ;
Au, HC ;
Mascarello, JT ;
Ream-Robinson, D ;
Scheffler, IE .
GENE, 1998, 213 (1-2) :133-140
[4]   CPG ISLANDS IN VERTEBRATE GENOMES [J].
GARDINERGARDEN, M ;
FROMMER, M .
JOURNAL OF MOLECULAR BIOLOGY, 1987, 196 (02) :261-282
[5]   WHY GENES IN PIECES [J].
GILBERT, W .
NATURE, 1978, 271 (5645) :501-501
[6]  
GOPING IS, 1995, FEBS LETT, V373, P45
[7]   A receptor for the import of proteins into human mitochondria [J].
Hanson, B ;
Nuttall, S ;
Hoogenraad, N .
EUROPEAN JOURNAL OF BIOCHEMISTRY, 1996, 235 (03) :750-753
[8]   A CRUCIAL ROLE OF THE MITOCHONDRIAL PROTEIN IMPORT RECEPTOR MOM19 FOR THE BIOGENESIS OF MITOCHONDRIA [J].
HARKNESS, TAA ;
NARGANG, FE ;
VANDERKLEI, I ;
NEUPERT, W ;
LILL, R .
JOURNAL OF CELL BIOLOGY, 1994, 124 (05) :637-648
[9]   THE YEAST MITOCHONDRIAL PROTEIN IMPORT RECEPTOR MAS20P BINDS PRECURSOR PROTEINS THROUGH ELECTROSTATIC INTERACTION WITH THE POSITIVELY CHARGED PRESEQUENCE [J].
HAUCKE, V ;
LITHGOW, T ;
ROSPERT, S ;
HAHNE, K ;
SCHATZ, G .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1995, 270 (10) :5565-5570
[10]   Identification of two processed pseudogenes of the human Tom20 gene [J].
Hernández, JM ;
Blat, B ;
Iruela, C ;
Vila, F ;
Hernández-Yago, J .
MOLECULAR AND GENERAL GENETICS, 1998, 258 (1-2) :117-122