Thermo Fisher Scientific KAP-1 Polyclonal Antibody

Applications

Western Blot (WB)

• Tested Dilution: 1:2,000–1:10,000

Immunoprecipitation (IP)

• Tested Dilution: 2–10 µg/mg lysate

Product Specifications

Product Specific Information

• Recommended shelf life: 1 year from date of receipt
• Based on 100% sequence identity, this antibody is predicted to react with Rat

Target Information

The KRAB (Kruppel-associated box) domain, approximately 45 amino acids in length, is a transcriptional repression domain found in numerous transcription factors. Over 220 KRAB-zinc finger protein (KRAB-ZFP) genes have been identified in the human genome. These proteins repress transcription via specific interactions with KAP-1 (KRAB-associated protein 1).

KAP-1 is an 835 amino acid polypeptide containing a RING finger, B boxes, and a PHD finger. It forms complexes with KRAB-domain transcription factors to enhance repression efficiency. KAP-1 also interacts directly with HP1 (heterochromatin protein 1) and KRAZ1 (Kruppel-associated box-containing zinc finger protein 1), targeting KRAZ1 to centromeric heterochromatin foci containing HP1α, thus regulating transcriptional repression. Mutant KAP-1 unable to bind HP1 causes random KRAZ1 distribution and strong transcriptional activation.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

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