Human CSL Antibody Summary
Accession # Q06330
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
CSL in U937 Human Cell Line. CSL was detected in immersion fixed U937 human histiocytic lymphoma cell line using Goat Anti-Human CSL Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4079) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. Staining was performed using our protocol for Fluorescent ICC Staining of Non-adherent Cells.
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
CSL (CBF1/RBP-Jk; Su(H)/Suppressor of Hairless; Lag-1) is a 56 kDa member of the Su(H) family of transcription factors. It is constitutively bound to DNA where it participates in gene repression. Upon ligand binding, the intracellular domain of Notch translocates to the nucleus and interacts with CSL, allowing transcription of Notch target genes. Human CSL is 500 amino acids (aa) in length. It contains three DNA binding sites (aa 58‑65; 192‑201; and 265‑297) and one IPT domain (aa 355‑445). Multiple splice variants exist that involve the first 89 N-terminal amino acids. One variant (isoform 2) is 487 aa in length and shows a 6 aa substitution for amino acids 1‑19. Over amino acids 195‑487, human CSL isoform 2 shares more than 98% aa sequence identity with mouse, rat, and canine CSL.
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