Leishmania mitochondrial tRNA importers

被引:23
作者
Adhya, Samit [1 ]
机构
[1] Indian Inst Chem Biol, Genet Engn Lab, Div Mol & Human Genet, Kolkata 700032, W Bengal, India
关键词
tRNA; Import; Mitochondria; Complex; Leishmania;
D O I
10.1016/j.biocel.2007.10.025
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The RNA Import Complex (RIC) is a multi-subunit protein complex from the mitochondria of the kinetoplastid protozoon Leishmania tropica that induces transport of tRNA across natural and artificial membranes. Leishmania, Trypanosoma and related genera of the order Kinetoplastidae are early diverging, atypical eukaryotes with unique RNA metabolic pathways, including the import of nucleus-encoded tRNAs into the mitochondrion to complement the deletion of all organelle-encoded tRNA genes. Biochemical and genetic studies of RIC are contributing to greater understanding of the mechanism of import. Additionally, RIC was shown to act as an efficient delivery vehicle for tRNA and other small RNAs into mitochondria within intact mammalian cells, indicating its applicability to the management of diseases caused by mitochondrial mutations. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2681 / 2685
页数:5
相关论文
共 19 条
[1]   tRNA-triggered ATP hydrolysis and generation of membrane potential by the Leishmania mitochondrial tRNA import complex [J].
Bhattacharyya, SN ;
Adhya, S .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2004, 279 (12) :11259-11263
[2]   Ping-Pong interactions between mitochondrial tRNA import receptors within a multiprotein complex [J].
Bhattacharyya, SN ;
Chatterjee, S ;
Goswami, S ;
Tripathi, G ;
Dey, SN ;
Adhya, S .
MOLECULAR AND CELLULAR BIOLOGY, 2003, 23 (15) :5217-5224
[3]   Mitochondrial RNA import in Leishmania tropica:: Aptamers homologous to multiple tRNA domains that interact cooperatively or antagonistically at the inner membrane [J].
Bhattacharyya, SN ;
Chatterjee, S ;
Adhya, S .
MOLECULAR AND CELLULAR BIOLOGY, 2002, 22 (12) :4372-4382
[4]  
Bhattacharyya Suvendra Nath, 2004, RNA Biol, V1, P84, DOI 10.4161/rna.1.2.1180
[5]   Elongation factor 1a mediates the specificity of mitochondrial tRNA import in T-brucei [J].
Bouzaidi-Tiali, Nabile ;
Aeby, Eric ;
Charriere, Fabien ;
Pusnik, Mascha ;
Schneider, Andre .
EMBO JOURNAL, 2007, 26 (20) :4302-4312
[6]   An RNA-binding respiratory component mediates import of type II tRNAs into Leishmania mitochondria [J].
Chatterjee, Saibal ;
Home, Pratik ;
Mukherjee, Saikat ;
Mahata, Bidesh ;
Goswami, Srikanta ;
Dhar, Gunjan ;
Adhya, Samit .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2006, 281 (35) :25270-25277
[7]   A glycolytic enzyme, enolase, is recruited as a cofactor of tRNA targeting toward mitochondria in Saccharomyces cerevisiae [J].
Entelis, Nina ;
Brandina, Irina ;
Kamenski, Piotr ;
Krasheninnikov, Igor A. ;
Martin, Robert P. ;
Tarassov, Ivan .
GENES & DEVELOPMENT, 2006, 20 (12) :1609-1620
[8]   Allosteric regulation of tRNA import:: interactions between tRNA domains at the inner membrane of Leishmania mitochondria [J].
Goswami, S ;
Chatterjee, S ;
Bhattacharyya, SN ;
Basu, S ;
Adhya, S .
NUCLEIC ACIDS RESEARCH, 2003, 31 (19) :5552-5559
[9]   The α-subunit of Leishmania F1 ATP synthase hydrolyzes ATP in presence of tRNA [J].
Goswami, Srikanta ;
Adhya, Samit .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2006, 281 (28) :18914-18917
[10]   A bifunctional tRNA import receptor from Leishmania mitochondria [J].
Goswami, Srikanta ;
Dhar, Gunjan ;
Mukherjee, Saikat ;
Mahata, Bidesh ;
Chatterjee, Saibal ;
Home, Pratik ;
Adhya, Samit .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (22) :8354-8359