An ancient genetic link between vertebrate mitochondrial fatty acid synthesis and RNA processing

2007 ◽  
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pp. 569-578 ◽  
Author(s):  
Kaija J. Autio ◽  
Alexander J. Kastaniotis ◽  
Helmut Pospiech ◽  
Ilkka J. Miinalainen ◽  
Melissa S. Schonauer ◽  
...  
2007 ◽  
Vol 149 ◽  
pp. S21
Author(s):  
Kaija Autio ◽  
Alexander Kastaniotis ◽  
Helmut Pospiech ◽  
Ilkka Miinalainen ◽  
Melissa Schonauer ◽  
...  

2004 ◽  
Vol 279 (21) ◽  
pp. 21779-21786 ◽  
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Ursula Hoja ◽  
Sandra Marthol ◽  
Jörg Hofmann ◽  
Sabine Stegner ◽  
Rainer Schulz ◽  
...  

2018 ◽  
Vol 28 (20) ◽  
pp. R1212-R1219 ◽  
Author(s):  
Sara M. Nowinski ◽  
Jonathan G. Van Vranken ◽  
Katja K. Dove ◽  
Jared Rutter

2018 ◽  
Vol 38 (45) ◽  
pp. 9781-9800 ◽  
Author(s):  
Remya R. Nair ◽  
Henna Koivisto ◽  
Kimmo Jokivarsi ◽  
Ilkka J. Miinalainen ◽  
Kaija J. Autio ◽  
...  

Author(s):  
J. Kalervo Hiltunen ◽  
Kaija J. Autio ◽  
Melissa S. Schonauer ◽  
V.A. Samuli Kursu ◽  
Carol L. Dieckmann ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0151171 ◽  
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Hayley B. Clay ◽  
Angelika K. Parl ◽  
Sabrina L. Mitchell ◽  
Larry Singh ◽  
Lauren N. Bell ◽  
...  

2008 ◽  
Vol 28 (21) ◽  
pp. 6646-6657 ◽  
Author(s):  
Melissa S. Schonauer ◽  
Alexander J. Kastaniotis ◽  
J. Kalervo Hiltunen ◽  
Carol L. Dieckmann

ABSTRACT Distinct metabolic pathways can intersect in ways that allow hierarchical or reciprocal regulation. In a screen of respiration-deficient Saccharomyces cerevisiae gene deletion strains for defects in mitochondrial RNA processing, we found that lack of any enzyme in the mitochondrial fatty acid type II biosynthetic pathway (FAS II) led to inefficient 5′ processing of mitochondrial precursor tRNAs by RNase P. In particular, the precursor containing both RNase P RNA (RPM1) and tRNAPro accumulated dramatically. Subsequent Pet127-driven 5′ processing of RPM1 was blocked. The FAS II pathway defects resulted in the loss of lipoic acid attachment to subunits of three key mitochondrial enzymes, which suggests that the octanoic acid produced by the pathway is the sole precursor for lipoic acid synthesis and attachment. The protein component of yeast mitochondrial RNase P, Rpm2, is not modified by lipoic acid in the wild-type strain, and it is imported in FAS II mutant strains. Thus, a product of the FAS II pathway is required for RNase P RNA maturation, which positively affects RNase P activity. In addition, a product is required for lipoic acid production, which is needed for the activity of pyruvate dehydrogenase, which feeds acetyl-coenzyme A into the FAS II pathway. These two positive feedback cycles may provide switch-like control of mitochondrial gene expression in response to the metabolic state of the cell.


2005 ◽  
Vol 33 (5) ◽  
pp. 1162 ◽  
Author(s):  
F. Okubo ◽  
J.K. Hiltunen ◽  
V.A.S. Kursu ◽  
K.J. Autio ◽  
A.J. Kastaniotis

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