sigma factor sentence in Hindi
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- Recent research has revealed that HU binds with high specificity to the mRNA of rpoS, a transcript for the stress sigma factor of RNA polymerase, and stimulates translation of the protein.
- The RpoS gene in " E . coli " encodes sigma 38, a sigma factor which regulates stress response and acts as a transcriptional regulator for many genes involved in cell adaptation.
- In prokaryotes, transcription is carried out by a single type of RNA polymerase, which needs a DNA sequence called a Pribnow box as well as a sigma factor ( ? factor ) to start transcription.
- At least three known genes including " xthA " and " katE " are regulated by a sigma factor, KatF ( RpoS ), whose synthesis is turned on during the stationary phase.
- Many Gram-positive species have two copies of 6S RNA . In " Bacillus subtilis ", both copies appear to interact with RNA polymerase holoenzyme containing the housekeeping sigma factor and be expressed during different stages of growth.
- Its transcription is induced during nitrogen limitation by the NtrB / C two-component system ( an important regulator of nitrogen assimilation and swarming motility ) together with the alternative sigma factor RpoN ( a global regulator involved in nitrogen metabolism ).
- The indirectly activation promoters include these dependent on sigma factors : S, H, N, E . When strong promoters, such as " rrn ", are inhibited, there more RNAP are available for these alternative sigma factors.
- The indirectly activation promoters include these dependent on sigma factors : S, H, N, E . When strong promoters, such as " rrn ", are inhibited, there more RNAP are available for these alternative sigma factors.
- Sigma factors act as mediators of sequence-specific transcription, such that a single sigma factor can be used for transcription of all housekeeping genes or a suite of genes the cell wishes to express in response to some external stimuli such as stress.
- Sigma factors act as mediators of sequence-specific transcription, such that a single sigma factor can be used for transcription of all housekeeping genes or a suite of genes the cell wishes to express in response to some external stimuli such as stress.
- Recent studies showed that VrrA expression is activated by the alternative stress sigma factor, sigma E, unlike other strains of bacteria such as transcription increases on exposure to UV light and that over expression of VrrA resulted in an increase in outer membrane vesicles secreted.
- The up-regulation of HSPs during heat shock is generally controlled by a single transcription factor; in eukaryotes this regulation is performed by heat shock factor ( HSF ), while ? 32 is the heat shock sigma factor in " Escherichia coli ".
- Pyoverdine biosynthesis seems to be largely regulated through the activity of the alternate sigma factor PvdS which, in turn, is regulated both by the Fur system and by the intracellular sequestration of PvdS at the plasma membrane and away from the nucleoid by the repressor FpvI.
- In a genomic comparison with " Bacillus subtilis ", " B . halodurans " strain C-125-originally an unclassified " Bacillus " strain-was found to contain unique genes and sigma factors that may have aided its adaptation to more alkaline environments.
- SRNA scr4677 ( " Streptomyces " " coelicolor " sRNA 4677 ) is located in the intergenic region between anti-sigma factor SCO4677 gene and a putative regulatory protein gene SCO4676 . scr4677 expression requires the SCO4677 activity and scr4677 sRNA itself seem to affect the levels of the SCO4676-associated transcripts.
- RNA Polymerase sigma 70 binding : The picture shows the region-35 and-10 of the promoter, which are the main regions of interactions with the sigma factor . [ [ File : Gene promoters according to T1D, IDM and T2D . png | thumb | Distribution of gene promoters associated with type 1 diabetes ( T1D ), Intermediary Diabetes Mellitus ( IDM ) and type 2 diabetes ( T2D ).
- In addition, conserved signature indels in a number of proteins including a four-amino-acid insert in transcription repair coupling factor Mfd, a 10-amino-acid insert in ribosomal protein L19, one-amino-acid inserts each in the FtsZ protein and the major sigma factor 70, and a one-amino-acid deletion in exonuclease VII protein that are specific for the Rickettsiaceae species have been identified.
- These indels consist of a four-amino-acid insertion in transcription repair coupling factor Mfd, a 10-amino-acid insertion in ribosomal protein L19, a one-amino-acid insertion in FtsZ, a one-amino-acid insertion in major sigma factor 70, and a one-amino-acid deletion in exonuclease VII . These indels are all characteristic of the genus and serve as molecular markers for " Rickettsia ".
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