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How to make it impossible to succeed with your blog
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1) Spend too much time in front of your computer in an un-ergonomic way to the point where you have injured your neck and can’t work on your computer for any reasonable length of time for you to be able to post something worth reading except very short ‘How-to’ posts for Darren of Problogger‘s latest group writing project.
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September 15, 2006
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I’ve injured myself with my computer!
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Sorry I haven’t been able to post for a while – I’ve developed some back and neck problems presumably from sitting by the computer too much. I saw my doctor today and next week will start some physical therapy to help my neck and stuff. Meanwhile I cannot work at my computer except for really short periods of time. Will be back as soon as possible!
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- Back and neck problems have kept me away
- How to make it impossible to succeed with your blog
- I’m back!
September 1, 2006
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Breast cancer gene product has role in translation
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Mutations in the gene BRCA1 (breast cancer 1) are associated with a greater risk of developing breast, ovarian, prostate and colon cancers. These mutations are found in around 90% of people with both breast and ovarian cancer and in 40% of women with familial breast cancer although they are found in only 5% of all breast cancers.
It is believed that the normal role of the BRCA1 protein is to suppress tumors, although details of its role in this regard are not fully known. So far BRCA1 has been shown to be involved in many cell processes including homology-directed repair of DNA, cell cycle regulation, apoptosis, transcription and ubiquitination.
A new paper in JBC by Nicole Dalla Venezia’s group now shows that BRCA1 may also be involved in translation. Translation is the process in which a mRNA (messenger RNA) is decoded and a protein is synthesized.
Venezia’s group first showed that BRCA1 binds to PABP (poly(A)-binding protein 1) , which is also involved in translation, using the yeast two-hybrid system. They confirmed this with in vitro assays and in mammalian cells. They believe this interaction between the two proteins may be physiologically relevant because in in vitro assays with a mutated form of BRCA1 the interaction was not observed. In addition RNA interference experiments to reduce the expression of BRCA1 resulted in a decrease in cellular translation. And – overexpression of BRCA1 increased translation activity.
Other studies have indicated that there may be a connection between translation and cancer. Specifically some translation initiation factors such as eIF4E have been linked to malignancy. The specific role of BRCA1 in translation and in tumor suppression is not yet clear, but this study suggests an additional mechanism that might be involved.
(Technorati Tags: BRCA1, cancer, translation, gene)
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Related Posts:
- Breast cancer: BRCA2 and DNA repair
- The paradox of BRCA1 in breast cancer
- New breast cancer gene discovered