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Rec a protein

rec A protein

(Science: protein) A protein (40 kD) product of the rec (recombination) gene, that catalyses the pairing of a single stranded piece of dNA with its complementary sequence, displacing a loop of single stranded DNA (d loop).

It catalyses the aTP-driven exchange of dNA strands in genetic recombination. The product of the reaction consists of a duplex and a displaced single-stranded loop which has the shape of the letter d and is therefore called a d-loop structure.

ATP is hydrolyzed to aDP during the reaction; also has proteolytic activity.


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translation from DNA

... on RNA level), but further there is amplification of the signal (there can be thousands copies of each mRNA, each giving rise to hundreds of protein molecules), also, during replication of DNA the protein synthesis would have to be shut down and there could be other reasons. But as said, ...

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by JackBean
Tue Sep 30, 2014 8:16 am
 
Forum: Molecular Biology
Topic: translation from DNA
Replies: 2
Views: 256

Gene Upregulation/Increased Expression in HMG-CoA Reductase

... tried to differentiate the two and left me pretty confused. From my understanding, increased gene expression will result in an increase in the protein product that a gene is coding for. Meaning that if you increased expression of a gene that codes for an enzyme, it would result in upregulation ...

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by Upperninety8
Tue Sep 30, 2014 3:21 am
 
Forum: Genetics
Topic: Gene Upregulation/Increased Expression in HMG-CoA Reductase
Replies: 0
Views: 49

Re: translation from DNA

That's a reasonable idea. I can imagine a ribosome directly binding to DNA to translate the DNA codons directly into protein. We can't really tell why that didn't happen, as much of the early development of life occurred far in the past and left no evidence of the steps in the process; ...

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by jonmoulton
Mon Sep 29, 2014 3:03 pm
 
Forum: Molecular Biology
Topic: translation from DNA
Replies: 2
Views: 256

Re: Any ideas for vaccine development or anti-viral drugs???

... Silvestri LS, Ruthel G, Kallstrom G, Warfield KL, Swenson DL, Nelle T, Iversen PL, Bavari S, Aman MJ. Involvement of Vacuolar Protein Sorting Pathway in Ebola Virus Release Independent of TSG101 Interaction. J Infect Dis. 2007 Nov 15;196 Suppl 2:S264-70. Budding of Ebola virus ...

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by jonmoulton
Mon Sep 15, 2014 3:04 pm
 
Forum: Cell Biology
Topic: Any ideas for vaccine development or anti-viral drugs???
Replies: 2
Views: 501

Recessive and dominant genetics - Pitx1 case study

... this is what my text says on the basic diagram "This Scientists generated mouse embryos in which the Pitx1 gene was mutated, making the Pitx1 protein non-functional from the start of mouse development. The images of the Pitx1 “knockout” mouse shown below on the right reveal striking differences ...

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by scienceguy914
Mon Sep 08, 2014 1:44 am
 
Forum: Genetics
Topic: Recessive and dominant genetics - Pitx1 case study
Replies: 0
Views: 439
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