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W factor

W factor --> biotin

(Science: biochemistry) A prosthetic group for carboxylase enzymes. Important in fatty acid biosynthesis and catabolism and has found widespread use as a covalent label for macromolecules which may then be detected by high affinity binding of labelled avidin or streptavidin. Essential growth factor for many cells.


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Effects of SA; V ration on the rate of diffusion

... be appreciated. At least 1-2 sentences for the following 6 questions. 1. What is diffusion? - I googled this but unsure if it correct 2. What factors can affect diffusion? 3. why do cells require diffusion? 4. How do you think SA: V affects diffusion? 5. Why is size a limiting factor for cells? ...

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by patrick987
Sun May 12, 2013 6:32 am
 
Forum: Cell Biology
Topic: Effects of SA; V ration on the rate of diffusion
Replies: 2
Views: 230

protein fractionation

... strain of E.coli. When I artificially express from a plasmid one of the transcriptional regulator, it results in secretion of a protein factor in the media, which has interesting biological roles. My aim is to purify this unknown factor present in the growth media and to identify it ...

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by salmonela
Thu May 09, 2013 11:17 am
 
Forum: Microbiology
Topic: protein fractionation
Replies: 4
Views: 167

Re: Human body odor

... atopy etc.) or one has to wash themselves much more often than is normal. A very sensitive skin that is easily rashed or broken could be a risk factor as well. The lack of water is perhaps the biggest obstacle for bacterial growth on the skin and thus tropical or otherwise moist and humid environments ...

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by biohazard
Wed Apr 24, 2013 7:37 am
 
Forum: General Discussion
Topic: Human body odor
Replies: 3
Views: 543

Bio Research Paper Writing

... of the immune system to respond to infections that is highly characteristic of the immune system in senescence (DNA-Damage-Response np). One factor is the loss of the CD28 marker; when CD28 isn’t expressed, antigen-presenting cells like macrophages no longer recognise the T cell and thus ...

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by NathanielZhu
Thu Apr 04, 2013 2:25 am
 
Forum: General Discussion
Topic: Bio Research Paper Writing
Replies: 1
Views: 704

Comprehensive List of TFBSs database from ChIP-Seq data

Comprehensive List of transcription factor binding sites (TFBSs) databases based on ChIP-seq data as follows: (1) ChEA : transcription factor regulation inferred from integrating genome-wide ChIP-X experiments. release date: 2010 Oct. (2) ChIPBase ...

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by rnaworld2110
Fri Feb 15, 2013 6:59 am
 
Forum: Molecular Biology
Topic: Comprehensive List of TFBSs database from ChIP-Seq data
Replies: 0
Views: 817
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