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Repressor proteins

repressor proteins

proteins which are normally bound to the operator locus of an operon, thereby preventing transcription of the structural genes. In enzyme induction, the substrate of the inducible enzyme binds to the repressor protein, causing its release from the operator and freeing the structural genes for transcription. In enzyme repression, the end product of the enzyme sequence binds to the free repressor protein, the resulting complex then binds to the operator and prevents transcription of the structural genes.


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Phage

... with each other depending on the various presence of activator and repressor proteins. You want more in detail? I have to check up my references for the exact names of ...

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by david23
Thu Aug 23, 2007 5:21 pm
 
Forum: Microbiology
Topic: Phage
Replies: 3
Views: 924

The Fiber Disease

... association with Epstein-Barr virus (EBV). EBV encodes many viral proteins, which targets crucial cell cycle regulatory proteins. Cadherins ... of E-cadherin promoter or its down regulation by cellular transcription repressor. Our study also shows a significant down regulation of E-cadherin ...

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by RANDY
Fri Jan 12, 2007 11:04 pm
 
Forum: Human Biology
Topic: The Fiber Disease
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The Fiber Disease

... sequences, 5) a Shine-Delgarno sequence, and 6) the lactose operon repressor gene (lacIq). The origin of replication (oriC) is derived from ... The polypeptides of the present invention are preferably fused to other proteins. These fusion proteins can be used for a variety of applications. ...

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by Nadas Moksha
Sat Oct 07, 2006 3:47 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748718

The Fiber Disease

... is an abundant nucleoid-structuring protein with global transcriptional repressor functions (6, 7). DsrA antagonizes H-NS function by decreasing ... 11 is used for Bacteria, Archaea, prokaryotic viruses and chloroplast proteins. As in the standard code, initiation is most efficient at AUG. In ...

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by Skytroll
Wed Sep 06, 2006 4:29 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748718

The Fiber Disease

... Pfam profile PF03222: Tryptophan/tyrosine permease family (AT5G19490.1) repressor protein-related, similar to repressor protein (Oryza sativa) GI:18481624 ... "Function Code:10.04 - Metabolism of Macromolecules, Ribosomal proteins" /product="ribosomal protein L40" "Function ...

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by Nadas Moksha
Sun Aug 27, 2006 2:40 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748718


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