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Western blot analysis of La Protein on HCT-8 lysate. Lane 1: 1:500, lane 2: 1:1000, lane 3: 1:2000 dilution of anti-La Protein antibody.
Immunofluorescent staining of HeLa cells.
BD Transduction Laboratories™ Purified Mouse Anti-La Protein
BD Transduction Laboratories™ Purified Mouse Anti-La Protein
Regulatory Statusの凡例
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Preparation and Storage
推奨アッセイ手順
Western blot: Please refer to http://www.bdbiosciences.com/pharmingen/protocols/Western_Blotting.shtml .
Product Notices
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
- Source of all serum proteins is from USDA inspected abattoirs located in the United States.
La was first found to bind autoantibodies from individuals with Sjogren's syndrome and systemic lupus erythematosus (SLE). La is a transcription factor for RNA polymerase III (Pol III). It participates in the termination of Pol III-mediated transcription and the recycling of the transcriptional machinery. La associates with the 3' oligo U portion of transcripts generated by Pol III. In some cases, this association protects the message from 3' processing. The association of La and mRNA is mediated by the presence of an N-terminal ribonucleoprotein (RNP) consensus sequence in La. The La protein also binds several small RNAs, such as 7S RNA, 5S RNA, and tRNA, and is thought to be involved in their biogenesis. It is known that histone mRNA is stabilized throughout S Phase and is degraded only at the end of S phase. La protein participates in the stabilization of histone mRNA which results in increased production of histone protein. These data suggest that a major function of La is to protect vital nascent transcripts from premature degradation.
Development References (3)
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Chambers JC, Kenan D, Martin BJ, Keene JD. Genomic structure and amino acid sequence domains of the human La autoantigen. J Biol Chem. 1988; 263(34):18043-18051. (Biology). View Reference
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Goodier JL, Fan H, Maraia RJ. A carboxy-terminal basic region controls RNA polymerase III transcription factor activity of human La protein. Mol Cell Biol. 1997; 17(10):5823-5832. (Biology). View Reference
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McLaren RS, Caruccio N, Ross J. Human La protein: a stabilizer of histone mRNA. Mol Cell Biol. 1997; 17(6):3028-3036. (Biology). View Reference
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