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Found Promoter 21 times.

Displaying results 1 to 10.

1. Bacteriophage T7
A bacteriophage (a virus which infects bacteria ) that is useful to geneticist s because it has a very strong promoter region which strongly encourages transcription of its gene by specific T7 RNA polymerase . Geneticists can take the part with the promoter and attach their own genes of interest to it so that they can control transcription rates of their gene by choosing the amount of the RNA polymerase to put in.

2. CAAT box (cat box)
A particular sequence of nucleotide base s (GG T/C AATCT) found in the promoter s of many eukaryotic gene s, which is necessary for transcription to proceed smoothly.

3. Carcinogenicity promoter
This is an agent which increases tumor production by another substance when applied to susceptible organisms after their exposure to the first substance.

4. Catabolite repression
A positive repression process in cellular transcription , in which RNA polymerase binds poorly to the operon 's promoter . The binding of CRP and cAMP to the promoter causes RNA polymerase to bind more effectively and initiate transcription. Active constituents of this process are cAMP and CRP .

5. Chloramphenicol acetyl transferase assay (CAT assay)
A lab technique used to determine whether a given fragment of DNA has a promoter on it to encourage transcription to occur, by attaching the gene (called the CAT gene ) which codes for the CAT enzyme to it, and observing whether the CAT enzyme is produced.

6. Cis acting
Having to do with a genetic element (such as a promoter or other regulatory locus) having an effect (like promotion or suppression) on two unrelated targets (such as gene s) on the same chromosome as a result of their relative positions on the chromosome.

7. Consensus sequence
A sequence of nucleotide base s which are extremely similar among many different gene s of different systems. In eukaryote s, this sequence is known as the "TATA box" or the "Hogness box," and it has the general sequence of TATAAAA. In the bacteria Escherichia coli it is known as the "Pribnow box" and has the general sequence of TATAATG. The sequence is most often found in promoter s and does important things like binding important protein s (including RNA polymerase ) to initiate transcription .

8. Constituative promoter
An unregulated promoter that allows for continual transcription of its associated gene .

9. Construct
* An artificially assembled DNA segment to be transferred into the target tissue. Typically, the construct will include the gene of a particular interest, a marker gene and appropriate control sequences. * An engineered gene unit, usually involving a gene of interest that has been fused to a promoter .

10. Down promoter mutation
A mutation (a change in base pair sequence) in a promoter region; this results in lower gene expression (less transcription of the gene occurs).


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