Detection of Human/Mouse EBF‑1 by Western Blot. Western blot shows lysates of Raji human Burkitt's lymphoma cell line, Daudi human Burkitt's lymphoma cell line, and CH‑1 mouse B cell lymphoma cell line, and L1.2 mouse pro‑B cell line. PVDF membrane was probed with 2 µg/mL of Human/Mouse EBF‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5165) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). A specific band was detected for EBF‑1 at approximately 70 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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.
EBF-1 (Early B cell Factor 1; also OLF1 and COE1) is a 65-70 kDa member of the COE family of transcription factors. Although expressed in adipocytes and neurons, it is best studied in B cells where IL-7 acts to promote EBF-1 in pre-proB cells, leading to proB stage development. Mouse EBF-1 is 591 amino acids (aa) in length. It contains one DNA-binding region with an embedded zinc-finger motif (aa 51‑235), a dimerization segment between aa 370‑430, and a Pro/Ser-rich transactivation domain (aa 462‑550). EBF-1 either homodimerizes, or heterodimerizes with EBF-2 and -3. There is an alternate start site at Met134, and an isoform that shows a one aa substitution for aa 252‑259. Over aa 416‑520, mouse EBF-1 shows absolute aa identity to the equivalent sequence in rat and human EBF-1.
Early B-cell Factor 1
Entrez Gene IDs:
1879 (Human); 13591 (Mouse); 116543 (Rat)
COE1; Collier, Olf and EBF transcription factor 1; early B-cell factor 1; Early B-cell factor; EBF1; EBF-1; EBFFLJ41763; O/E-1; OE-1; OLF1; OLF1FLJ39389; olfactory neuronal transcription factor 1; transcription factor COE1
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