GLDC is a component of the mitochondrial glycine cleavage system, and its high expression is required for growth and tumorigenic capacity.
However, as discussed above, this correlative relationship does not warrant causality between mitochondrial rRNA cleavage and the pathogenesis of L. pneumophila infection in D. discoideum.
Therefore, the lack of processed SHMT2 protein in kidney mitochondria may account for previous findings that glycine catabolism through the mitochondrial glycine cleavage system is a major source of one-carbon units in kidney [18].
Our mechanistic investigations demonstrated that BSO+L-PAM induced significant increases in mitochondrial depolarization, cleavage of caspase-3, caspase-9, poly ADP ribose polymerase and DNA fragmentation.
Using the WST-1 mitochondrial dehydrogenase cleavage assay at day 6, viable MPC numbers were significantly increased in the cultures containing 1 to 10 μg/ml PPS (P < 0.01).
Similarly, in the tricistronic transcript (atp8/atp6/cox3) of Drosophila, poly(A) stretches were found in the 3' terminus of atp8 and atp6, which suggest the variation in mitochondrial transcript cleavage events may occur in the insects [ 27, 33].
As well as nuclear rRNA and mitochondrial primer cleavage functions, in S. cerevisiae at least, it has an additional function of promoting cell cycle progressing by cleaving CLB2 mRNA in its 5' UTR region at the end of mitosis [ 52, 53].
Human FXN protein is synthesized as a 210-amino acid precursor protein, but multiple smaller intermediate forms are found which do not conform to the sizes expected after traditional mitochondrial import, cleavage, and processing.
The treatment of T. brucei, T. cruzi, and L. donovani with camptothecin (an inhibitor of eukaryotic DNA topoisomerase I) induces both nuclear and mitochondrial DNA cleavage and covalent linkage to the protein, which is consistent with the existence of drug-sensitive topoisomerase I activity in both compartments [ 131].
The incorrectly predicted protein sequences are triosephosphate isomerase (fragment), putative acyl carrier protein, mitochondrial precursor, glycine cleavage system H protein, mitochondrial precursor (fragment), probable glycine cleavage system H protein 2 and mitochondrial precursor.
Plant and animal cells share many hallmarks of PCD, including cytoplasm shrinkage, chromatin condensation, DNA cleavage, mitochondrial swelling, organelle disruption and plasma membrane collapse (Mittler et al. 1997; van Doorn 2011; De Pinto et al. 2012).
