Rabbit C/EBP alpha Polyclonal Antibody | anti-C/EBP alpha antibody

Phospho-C/EBP alpha (Thr222) Antibody

Cat. Num. AAA9610673

• Gene Names: CEBPA; CEBP; C/EBP-alpha
• Reactivity: Human, Mouse, Rat; Predicted: Pig, Zebrafish, Bovine, Xenopus
• Applications: Western Blot, Immunohistochemistry, ELISA
• Purity: Purified rabbit serum by affinity purification via sequential chromatography on phospho- and non-phospho-peptide affinity columns.
• Synonyms: C/EBP alpha; Polyclonal Antibody; Phospho-C/EBP alpha (Thr222) Antibody; Apoptotic cysteine protease; Apoptotic protease Mch 5; C/ebpalpha; CAP4; Caspase 8 precursor; CBF-A; CCAAT Enhancer Binding Protein alpha; CCAAT/enhancer binding protein (C/EBP); alpha; CCAAT/enhancer-binding protein alpha; CEBP; CEBP A; CEBP alpha; Cebpa; CEBPA_HUMAN; FADD homologous ICE/CED 3 like protease; FADD like ICE; FLICE; ICE like apoptotic protease 5; ICE8; MACH; MCH5; MORT1 associated CED 3 homolog; anti-C/EBP alpha antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat; Predicted: Pig, Zebrafish, Bovine, Xenopus
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: Phospho-C/EBP (Thr222) Antibody detects endogenous levels of C/EBP only when phosphorylated at Thr222.
• Purity/Purification: Purified rabbit serum by affinity purification via sequential chromatography on phospho- and non-phospho-peptide affinity columns.
• Form/Format: Liquid; Phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1mg/ml (varies by lot)
• Sequence Length: 358

• Applicable Applications for anti-C/EBP alpha antibody: Western Blot (WB), Immunohistochemistry (IHC), Peptide ELISA (EIA)
• Application Notes: WB: 1:500-1:2000; IHC: 1:50-1:200; ELISA (Peptide): 1:20000-1:40000
• Immunogen: A synthesized peptide derived from human C/EBP around the phosphorylation site of Thr222.
• Subcellular Location: Nucleus; Nucleus
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Immunohistochemistry (IHC)

(At 1/100 staining mouse liver tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary)

Immunohistochemmistry (IHC)

(At 1/100 staining rat kidney tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary)

Immunohistochemistry (IHC)

(At 1/100 staining human lung cancer tissue sections by IHC-P. The tissue was formaldehyde fixed and a heat mediated antigen retrieval step in citrate buffer was performed. The tissue was then blocked and incubated with the antibody for 1.5 hours at 22 degree C. An HRP conjugated goat anti-rabbit antibody was used as the secondary)

Western Blot (WB)

(Western blot analysis of Phospho-C/EBP (Thr222) in lysates of HepG2 , using Phospho-C/EBP (Thr222) Antibody.)

Related Product Information for anti-C/EBP alpha antibody

Description: Transcription factor that coordinates proliferation arrest and the differentiation of myeloid progenitors, adipocytes, hepatocytes, and cells of the lung and the placenta. Binds directly to the consensus DNA sequence 5'-T[TG]NNGNAA[TG]-3' acting as an activator on distinct target genes (PubMed:11242107). During early embryogenesis, plays essential and redundant functions with CEBPB. Essential for the transition from common myeloid progenitors (CMP) to granulocyte/monocyte progenitors (GMP). Critical for the proper development of the liver and the lung (By similarity). Necessary for terminal adipocyte differentiation, is required for postnatal maintenance of systemic energy homeostasis and lipid storage (By similarity). To regulate these different processes at the proper moment and tissue, interplays with other transcription factors and modulators. Downregulates the expression of genes that maintain cells in an undifferentiated and proliferative state through E2F1 repression, which is critical for its ability to induce adipocyte and granulocyte terminal differentiation. Reciprocally E2F1 blocks adipocyte differentiation by binding to specific promoters and repressing CEBPA binding to its target gene promoters. Proliferation arrest also depends on a functional binding to SWI/SNF complex (PubMed:14660596). In liver, regulates gluconeogenesis and lipogenesis through different mechanisms. To regulate gluconeogenesis, functionally cooperates with FOXO1 binding to IRE-controlled promoters and regulating the expression of target genes such as PCK1 or G6PC. To modulate lipogenesis, interacts and transcriptionally synergizes with SREBF1 in promoter activation of specific lipogenic target genes such as ACAS2. In adipose tissue, seems to act as FOXO1 coactivator accessing to ADIPOQ promoter through FOXO1 binding sites (By similarity).

Post Translational Modifications: Phosphorylation at Ser-190 is required for interaction with CDK2, CDK4 and SWI/SNF complex leading to cell cycle inhibition. Dephosphorylated at Ser-190 by protein phosphatase 2A (PP2A) through PI3K/AKT signaling pathway regulation (PubMed:15107404). Phosphorylation at Thr-226 and Thr-230 by GSK3 is constitutive in adipose tissue and lung. In liver, both Thr-226 and Thr-230 are phosphorylated only during feeding but not during fasting. Phosphorylation of the GSK3 consensus sites selectively decreases transactivation activity on IRE-controlled promoters. Sumoylated, sumoylation blocks the inhibitory effect on cell proliferation by disrupting the interaction with SMARCA2. Ubiquitinated by COP1 upon interaction with TRIB1.

Subunit Structure: Binds DNA as a homodimer and as a heterodimer. Can form stable heterodimers with CEBPB, CEBPD, CEBPE and CEBPG (By similarity). Interacts with PRDM16 (By similarity). Interacts with UBN1 (PubMed:10725330). Interacts with ZNF638; this interaction increases transcriptional activation (By similarity). Interacts with the complex TFDP2:E2F1; the interaction prevents CEBPA binding to target gene promoters and represses its transcriptional activity (PubMed:20176812). Interacts with RB1 (PubMed:15107404). Interacts (when phosphorylated at SER-190) with CDK2, CDK4, E2F4 and SMARCA2 (PubMed:15107404). Interacts with SREBPF1 (By similarity). Interacts with FOXO1 (via the Fork-head domain); the interaction increases when FOXO1 is deacetylated (By similarity). Isoform 1 and isoform 4 interacts with TAF1A and UBTF (PubMed:20075868). Isoform 4 interacts with NPM1 (PubMed:20075868). Interacts with HBV protein X (PubMed:9915821). Interacts (via recognition sequence) with TRIB1 (PubMed:20410507, PubMed:26455797).

Similarity: The recognition sequence (54-72) is required for interaction with TRIB1. Belongs to the bZIP family. C/EBP subfamily.

NCBI and Uniprot Product Information

• NCBI GI #: 28872794
• NCBI GeneID: 1050
• NCBI Accession #: NP_004355.2
• NCBI GenBank Nucleotide #: NP_004355.2
• UniProt Accession #: P49715
• Molecular Weight: Observed: 42 kDa; Predicted: 38 kDa
• NCBI Official Full Name: CCAAT/enhancer-binding protein alpha isoform a
• NCBI Official Synonym Full Names: CCAAT enhancer binding protein alpha
• NCBI Official Symbol: CEBPA
• NCBI Official Synonym Symbols: CEBP; C/EBP-alpha
• NCBI Protein Information: CCAAT/enhancer-binding protein alpha
• UniProt Protein Name: CCAAT/enhancer-binding protein alpha
• UniProt Gene Name: CEBPA
• UniProt Synonym Gene Names: C/EBP alpha
• UniProt Entry Name: CEBPA_HUMAN

NCBI Description

This intronless gene encodes a transcription factor that contains a basic leucine zipper (bZIP) domain and recognizes the CCAAT motif in the promoters of target genes. The encoded protein functions in homodimers and also heterodimers with CCAAT/enhancer-binding proteins beta and gamma. Activity of this protein can modulate the expression of genes involved in cell cycle regulation as well as in body weight homeostasis. Mutation of this gene is associated with acute myeloid leukemia. The use of alternative in-frame non-AUG (GUG) and AUG start codons results in protein isoforms with different lengths. Differential translation initiation is mediated by an out-of-frame, upstream open reading frame which is located between the GUG and the first AUG start codons. [provided by RefSeq, Dec 2013]

Uniprot Description

C/EBP-alpha: a bZIP transcription factor which can form homodimers or heterodimers with the related proteins CEBP-beta and CEBP-gamma. Binds to the promoter and modulate the expression of the gene encoding leptin, a protein that plays an important role in body weight homeostasis. Can interact with CDK2 and CDK4, thereby inhibiting these kinases and causing growth arrest in cultured cells.

Protein type: Transcription factor; DNA-binding

Chromosomal Location of Human Ortholog: 19q13.1

Cellular Component: Rb-E2F complex; nuclear matrix; nucleus

Molecular Function: RNA polymerase II transcription factor activity, enhancer binding; protein binding; protein homodimerization activity; DNA binding; protein heterodimerization activity; protein complex binding; transcription factor activity; transcription factor binding

Biological Process: transcription from RNA polymerase II promoter; fat cell differentiation; embryonic placenta development; macrophage differentiation; viral reproduction; cell maturation; response to glucocorticoid stimulus; negative regulation of transcription from RNA polymerase II promoter; glucose homeostasis; negative regulation of cell proliferation; response to vitamin B2; acute-phase response; inner ear development; cholesterol metabolic process; mitochondrion organization and biogenesis; generation of precursor metabolites and energy; organ regeneration; granulocyte differentiation; transcription, DNA-dependent; cytokine and chemokine mediated signaling pathway; negative regulation of cyclin-dependent protein kinase activity; liver development; positive regulation of osteoblast differentiation; positive regulation of proteasomal ubiquitin-dependent protein catabolic process; white fat cell differentiation; brown fat cell differentiation; positive regulation of fat cell differentiation; positive regulation of transcription from RNA polymerase III promoter; positive regulation of transcription from RNA polymerase II promoter; myeloid cell differentiation; lung development; urea cycle

Disease: Leukemia, Acute Myeloid