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Initiation factors

Initiation factors

The set of catalytic proteins required, in addition to mrna and ribosomes, for protein synthesis to begin. In bacteria three distinct proteins have been identified: if 1 (8 kD), IF 2 (75 kD) and IF 3 (30 kD). at least 6-8 proteins have been identified in eukaryotes. IFs 1 and 2 enhance the binding of initiator trna to the initiation complex.


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Re: Morpholino review: how to knockdown

... and the small ribosomal subunit bind at the 5' cap and then other initiation factors bind, forming the initiation complex. The initiation complex scans through the UTR ...

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by jonmoulton
Mon Aug 04, 2008 5:30 pm
 
Forum: Molecular Biology
Topic: Morpholino review: how to knockdown
Replies: 7
Views: 1740

Some MCQs

... reading frames to locate genes in a genome? when there are multiple initiation condons (ATG) in the seaquence when we don't know the function ... us to estimate the relative contributions of genetic and environmental factors to the variation in a trait observed in a population the environment ...

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by biology_06er
Tue Nov 13, 2007 5:44 am
 
Forum: General Discussion
Topic: Some MCQs
Replies: 3
Views: 1514

The Fiber Disease

... guanosine triphosphate as an energy source, and a number of translation factors. tRNAs have anticodons complementary to the codons in mRNA and can ... before the organism is viable. Translation starts with a chain initiation codon (start codon). Unlike stop codons, the codon alone is not ...

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by codon blue
Mon Dec 11, 2006 12:46 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748884

The Fiber Disease

... 1985). Both methods have met with successes and setbacks. Important factors to consider, when using oligonucleotides, are e.g. stability, toxicity ... are encoded. A non-coding intergenic region contains the signals for initiation of DNA synthesis, for termination of RNA synthesis, and the packaging ...

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by Nadas Moksha
Thu Oct 26, 2006 12:47 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748884

What Influences transcription rate in bacteria?

... starters bacteria do not have nuclei! Proteins such as transcription factors that activate can either help RNA polymerase bind to the promoter ... also degrade. A good review: The regulation of bacterial transcription initiation DF Browning, SJW Busby Nature Reviews Microbiology, 2004 Good ...

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by ucsf_student
Thu Jul 13, 2006 8:40 pm
 
Forum: Microbiology
Topic: What Influences transcription rate in bacteria?
Replies: 2
Views: 769
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