CEBP alpha in Human Liver. CEBP alpha was detected in immersion fixed paraffin-embedded sections of human liver using Sheep Anti-Human CEBP alpha Antigen Affinity-purified Polyclonal Antibody (Catalog # AF7094) at 5 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to nuclei in hepatocytes. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Sterile PBS to a final concentration of 0.2 mg/mL.
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.
Background: CEBP alpha
CEBP alpha (CCAAT/Enhancer-Binding Protein; also C/EBP) is a 42-43 kDa member of the C/EBP subfamily, bZIP family of proteins. It is expressed in multiple cell types, particularly those that are fully differentiated, and includes hepatocytes, skeletal muscle cells, adipocytes, intestinal epithelium and proliferating macrophages. CEBP alpha acts as a transcriptional activator for a large and diverse number of genes, including glycogen synthase, GLUT4, and G-CSFR, and participates in both cell cycle progression and differentiation. Human CEBP alpha is 358 amino acids (aa) in length). It contains one transactivation domain (aa 1-96), poly-Gly segment (aa 99-104), a poly-Pro motif (aa 183-189), a bZIP dimerization region (aa 281-334), and an overlapping DNA-binding Leu-zipper domain (aa 317-345). CEBP alpha forms both homodimers, and heterodimers with other subfamily members. One alternative start site at Met120 generates a low activity 30-32 kDa isoform variant. There is also a utilized phosphorylation site at Ser21 that regulates activity. Over aa 1-124, human CEBP alpha shares 93% aa identity with mouse CEBP alpha.
CCAAT/enhancer-Binding Protein alpha
Entrez Gene IDs:
1050 (Human); 12606 (Mouse); 24252 (Rat)
C/EBP alpha; C/EBP-alpha; CCAAT/enhancer binding protein (C/EBP), alpha; CCAAT/enhancer-binding protein alpha; CEBP alpha; CEBP; CEBPA
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