ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
种属
Homo sapiens (Human), Mus musculus (Mouse), Rattus norvegicus (Rat)
性质
Recombinant
内毒素水平
Please contact with the lab for this information.
纯度
>90% as determined by SDS-PAGE.
预测分子量
38.93 kDa
状态
Lyophilized
保存溶液
Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.
Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
重悬
Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details.
运输
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
稳定性和存储
Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Transcriptional repressor CTCF is a ~82 kDa protein. Chromatin binding factor that binds to DNA sequence specific sites and regulates the 3D structure of chromatin. Binds together strands of DNA, thus forming chromatin loops, and anchors DNA to cellular structures, such as the nuclear lamina. Defines the boundaries between active and heterochromatic DNA via binding to chromatin insulators, thereby preventing interaction between promoter and nearby enhancers and silencers. Participates in the allele-specific gene expression at the imprinted IGF2/H19 gene locus. On the maternal allele, binding within the H19 imprinting control region (ICR) mediates maternally inherited higher-order chromatin conformation to restrict enhancer access to IGF2.
1. Ishihara, K. et al. (2006) Molecular cell 23, 733-42. PMID: 16949368
2. Majumder, P. et al. (2008) The Journal of experimental medicine 205, 785-98. PMID: 18347100
3. Fu, Y. et al. (2008) PLoS genetics 4, e1000138. PMID: 18654629
4. Mishiro, T. et al. (2009) The EMBO journal 28, 1234-45. PMID: 19322193
