- Catalog number
- PB9171
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- CCAAT/enhancer-binding protein beta, also known as is CEBP-beta, is a protein that in humans is encoded by the CEBPB gene. It mapped to 20q13.13. The protein encoded by this intronless gene is a bZIP transcription factor that can bind as a homodimer to certain DNA regulatory regions. It can also form heterodimers with the related proteins CEBP-alpha, CEBP-delta, and CEBP-gamma. The encoded protein is important in the regulation of genes involved in immune and inflammatory responses and has been shown to bind to the IL-1 response element in the IL-6 gene, as well as to regulatory regions of several acute-phase and cytokine genes. In addition, the encoded protein can bind the promoter and upstream element and stimulate the expression of the collagen type I gene. CEBP-beta is critical for normal macrophage functioning, an important immune cell sub-type. Observational work has shown that expression of CEBP-beta in blood leukocytes is positively associated with muscle strength in humans, emphasizing the importance of the immune system, and particularly macrophages, in the maintenance of muscle function.
- Synonyms
- CCAAT/enhancer-binding protein beta ; C/EBP beta ; Liver activator protein; LAP; Liver-enriched inhibitory protein; LIP; Nuclear factor NF-IL6; Transcription factor 5; TCF-5; CEBPB ; TCF5; PP9092
- Gene Name
- CEBPB
- Gene ID
- 1051
- UniProt
- P17676
- Host
- Rabbit
- Reactivity
- Human
- Cross Reactivity
- No cross-reactivity with other proteins
- Immunogen
- E.coli-derived human CEBP Beta recombinant protein (Position: M1-A200) . Human CEBP Beta shares 61% amino acid (aa) sequence identity with both mouse and rat CEBP Beta.
- Clonality
- Polyclonal
- Tissue Specificity
- Expressed at low levels in the lung, kidney and spleen.
- Applications
- Flow Cytometry, IF, IHC, ICC, WB
- Field of Research
- Atherosclerosis, Cardiovascular, Diabetes-associated, Epigenetics and Nuclear Signaling, Hypertrophy, Transcription, Transcription Factors
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- Important transcription factor regulating the expression of genes involved in immune and inflammatory responses (PubMed:9374525, PubMed:12048245, PubMed:18647749) . Plays also a significant role in adipogenesis, as well as in the gluconeogenic pathway, liver regeneration, and hematopoiesis. The consensus recognition site is 5'-T[TG]NNGNAA[TG]-3'. Its functional capacity is governed by protein interactions and post-translational protein modifications. During early embryogenesis, plays essential and redundant functions with CEBPA. Has a promitotic effect on many cell types such as hepatocytes and adipocytes but has an antiproliferative effect on T-cells by repressing MYC expression, facilitating differentiation along the T-helper 2 lineage. Binds to regulatory regions of several acute-phase and cytokines genes and plays a role in the regulation of acute-phase reaction and inflammation. Plays also a role in intracellular bacteria killing (By similarity) . During adipogenesis, is rapidly expressed and, after activation by phosphorylation, induces CEBPA and PPARG, which turn on the series of adipocyte genes that give rise to the adipocyte phenotype. The delayed transactivation of the CEBPA and PPARG genes by CEBPB appears necessary to allow mitotic clonal expansion and thereby progression of terminal differentiation (PubMed:20829347) . Essential for female reproduction because of a critical role in ovarian follicle development (By similarity) . Restricts osteoclastogenesis (By similarity) . .
- References & Citations
- 1. Szpirer C, Riviere M, Cortese R, Nakamura T, Islam MQ, Levan G, Szpirer J (Jul 1992) . Chromosomal localization in man and rat of the genes encoding the liver-enriched transcription factors C/EBP, DBP, and HNF1/LFB-1 (CEBP, DBP, and transcription factor 1, TCF1, respectively) and of the hepatocyte growth factor/scatter factor gene (HGF) . Genomics 13 (2) : 293–300. 2. Cao Z, Umek RM, McKnight SL (Oct 1991) . Regulated expression of three C/EBP isoforms during adipose conversion of 3T3-L1 cells. Genes Dev 5 (9) : 1538–52. 3. Harries LW, Pilling LC, Hernandez LD, Bradley-Smith R, Henley W, Singleton AB, Guralnik JM, Bandinelli S, Ferrucci L, Melzer D (2012) .
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 36106 MW
- Observed Molecular Weight
- 46 kDa
- Specificity
- No cross reactivity with other proteins.
- Applications Notes
- 6
- Gene Name Synonym
- CCAAT/enhancer-binding protein beta
- Subcellular Location
- Nucleus . Cytoplasm . Translocates to the nucleus when phosphorylated at Ser-288. In T-cells when sumoylated drawn to pericentric heterochromatin thereby allowing proliferation (By similarity) . .
- Sequence Similarities
- Belongs to the bZIP family. C/EBP subfamily.
- Protein Name
- CCAAT/enhancer-binding protein beta
- Isotype
- Rabbit IgG
- Contents
- Each vial contains 4 mg Trehalose, 0.9 mg NaCl and 0.2 mg Na2HPO4.
