Home  >  Products  >  Zinc finger protein 350 (ZBRK1, ZNF350, KRAB zinc finger protein ZFQR, ZFQR, Zinc finger and BRCA1-interacting protein with a KRAB domain 1, Zinc-finger protein ZBRK1)
Zinc finger protein 350 (ZBRK1, ZNF350, KRAB zinc finger protein ZFQR, ZFQR, Zinc finger and BRCA1-interacting protein with a KRAB domain 1, Zinc-finger protein ZBRK1)

Zinc finger protein 350 (ZBRK1, ZNF350, KRAB zinc finger protein ZFQR, ZFQR, Zinc finger and BRCA1-interacting protein with a KRAB domain 1, Zinc-finger protein ZBRK1)

Cat no: Z0744-26A

Supplier: United States Biological
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ZBRK1 is a member of the Kruppel-associated box-zinc finger protein (KRAB-ZFP) protein family of transcriptional repressors. ZBRK1 has been shown to not only be up-regulated in senescent fibroblasts but also interacts with BRCA1, a transcriptional regulator with tumor suppressor activity. ZBRK1 binds to a specific sequence within the GADD45 gene, supporting the assembly of a nuclear complex containing BRCA1 and repressing its transcription. Recent experiments demonstrate that ZBRK1 can homo-oligomerize in vitro and in vivo through a C-terminal transcriptional repression domain (CTRD), and this oligomerization facilitates the ZBRK1-directed transcriptional repression through ZBRK1 response elements. These results suggest that higher order ZBRK1 oligomers may assemble through both protein-DNA and CTRD-dependent protein-protein interactions. Applications: Suitable for use in Western Blot. Other applications not tested. Recommended Dilution: Western Blot: 1-2ug/ml Optimal dilutions to be determined by the researcher. Positive Control: A20 Cell Lysate Storage and Stability: May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Catalogue number: Z0744-26A
Reactivities: Human, Mouse, Rat
Hosts: Rabbit
Applications: Western Blot
Size: 100ug
Form: Supplied as a liquid in PBS, 0.02% sodium azide.
P type: Pab
Purity: Purified by immunoaffinity chromatography.
References: 1. Zheng L, Pan H, Li S, et al. Sequence-specific transcription corepressor function for BRCA1 through a novel Zinc finger protein, ZBRK1. Mol. Cell 2000; 6:757-68. 2. Collins T, Stone JR, and Williams AJ. All in the family: the BTB/POZ, KRAB, and SCAN domains. Mol. Cell. Biol. 2001; 21:3609-15. 3. Tan W, Kim S, and Boyer TG. Tetrameric oligomerization mediates transcriptional repression by the BRCA1-dependent Kruppel-associated Box-Zinc finger protein ZBRK1. J. Biol. Chem. 2004; 279:55153-60.
Additional info: Recognizes human ZBRK1. Species Crossreactivity: Mouse and rat.

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