Studies on nuclear deprimerones: Isolation, fractionation, characterization and control of gene expression

1980 ◽  
Vol 6 (3) ◽  
pp. 169-177 ◽  
Author(s):  
Marian Hillar ◽  
Jan Przyjemski ◽  
Leigh E. Wyborny
Keyword(s):  
Gene Expression ◽  
Control Of Gene Expression ◽  
And Control

scholarly journals Co-dependence between trypanosome nuclear lamina components in nuclear stability and control of gene expression

2016 ◽  
Vol 44 (22) ◽  
pp. 10554-10570 ◽  
Author(s):  
Luke Maishman ◽  
Samson O. Obado ◽  
Sam Alsford ◽  
Jean-Mathieu Bart ◽  
Wei-Ming Chen ◽  
...  
Keyword(s):  
Gene Expression ◽  
Nuclear Lamina ◽  
Control Of Gene Expression ◽  
Stability And Control ◽  
Nuclear Stability ◽  
And Control

scholarly journals Organization and expression of organellar genomes

2010 ◽  
Vol 365 (1541) ◽  
pp. 785-797 ◽  
Author(s):  
Adrian C. Barbrook ◽  
Christopher J. Howe ◽  
Davy P. Kurniawan ◽  
Sarah J. Tarr
Keyword(s):  
Gene Expression ◽  
Mitochondrial Gene ◽  
Gene Content ◽  
Rrna Genes ◽  
Control Of Gene Expression ◽  
Photosynthetic Organisms ◽  
Wide Range ◽  
Redox Poise ◽  
Post Transcriptional Regulation ◽  
And Control

Protist mitochondrial genomes show a very wide range of gene content, ranging from three genes for respiratory chain components in Apicomplexa and dinoflagellates to nearly 100 genes in Reclinomonas americana . In many organisms the rRNA genes are fragmented, although still functional. Some protist mitochondria encode a full set of tRNAs, while others rely on imported molecules. There is similarly a wide variation in mitochondrial genome organization, even among closely related groups. Mitochondrial gene expression and control are generally poorly characterized. Transcription probably relies on a ‘viral-type’ RNA polymerase, although a ‘bacterial-type’ enzyme may be involved in some cases. Transcripts are heavily edited in many lineages. The chloroplast genome generally shows less variation in gene content and organization, although greatly reduced genomes are found in dinoflagellate algae and non-photosynthetic organisms. Genes in the former are located on small plasmids in contrast to the larger molecules found elsewhere. Control of gene expression in chloroplasts involves transcriptional and post-transcriptional regulation. Redox poise and the ATP/ADP ratio are likely to be important determinants. Some protists have an additional extranuclear genome, the nucleomorph, which is a remnant nucleus. Nucleomorphs of two separate lineages have a number of features in common.

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