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- 详细信息
- 文献和实验
- 技术资料
- 保存条件：
Store at -20˚C
- 英文名：
V(D)J recombination-activating protein 2
- 库存：
详询
- 供应商：
南京莱富赛
- 规格：
详询
host_species:E.coli
purification:>90% by SDS-PAGE
specificity:Human
other_names:null
accession_no:P55895
Gene name:RAG2
calculated_mw:
tag info:His
Immunogen Description:Recombinant protein
formulation:50mM NaH2PO4, 500mM NaCl Buffer with 500mM Imidazole,10%glycerol(PH8.0)
storage:Store at -20C. (Avoid repeated freezing and thawing.)
Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
background:Core component of the RAG complex, a multiprotein complex that mediates the DNA cleavage phase during V(D)J recombination. V(D)J recombination assembles a diverse repertoire of immunoglobulin and T-cell receptor genes in developing B and T-lymphocytes through rearrangement of different V (variable), in some cases D (diversity), and J (joining) gene segments. DNA cleavage by the RAG complex occurs in 2 steps: a first nick is introduced in the top strand immediately upstream of the heptamer, generating a 3'-hydroxyl group that can attack the phosphodiester bond on the opposite strand in a direct transesterification reaction, thereby creating 4 DNA ends: 2 hairpin coding ends and 2 blunt, 5'-phosphorylated ends. The chromatin structure plays an essential role in the V(D)J recombination reactions and the presence of histone H3 trimethylated at 'Lys-4' (H3K4me3) stimulates both the nicking and haipinning steps. The RAG complex also plays a role in pre-B cell allelic exclusion, a process leading to expression of a single immunoglobulin heavy chain allele to enforce clonality and monospecific recognition by the B-cell antigen receptor (BCR) expressed on individual B-lymphocytes. The introduction of DNA breaks by the RAG complex on one immunoglobulin allele induces ATM-dependent repositioning of the other allele to pericentromeric heterochromatin, preventing accessibility to the RAG complex and recombination of the second allele. In the RAG complex, RAG2 is not the catalytic component but is required for all known catalytic activities mediated by RAG1. It probably acts as a sensor of chromatin state that recruits the RAG complex to H3K4me3.
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文献和实验D 型氨基酸的能力进行了评估，在菌种和菌株水平观察到显著差异，为研究这类神经活性物质对宿主生理功能的调控提供了方法和基础。 Jonathan V. Sweedler 教授和司同研究员为本文共同通讯作者，Cindy J. Lee，Tian A. Qiu 和洪志来为共同第一作者，Huimin Zhao 教授和戴磊研究员作为共同作者对本文亦做出重要贡献。 我们的左右手互为镜像，彼此不能重合。自然界中，与其镜像具有不能互相重合构型或构象的分子被称为手性分子，这一组分子被称为对映异构体。有意
that occur at the DNA level during the IG and TR molecular synthesis. These mechanisms include the combinatorial rearrangements of the variable (V), diversity (D) and joining (J) genes, the N-diversity (deletion and addition at random of nucleotides
., Satomi, Y., Kurata, T., Ueno, N.,Norioka, S., Kondoh, H., et al. (2006)Monounsaturated fatty acid modificationof Wnt protein: its role in Wnt secretion. Dev Cell , 11 , 791-801. 3. Willert, K., Brown, J. D., Danenberg, E., Duncan, A. W., Weissman, I. L
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