Fibroblast Growth Factor Receptor 4 (FGFR4) Antibody
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Description
FGFR4 is a member of the fibroblast growth factor receptor family, where amino acid sequence is highly conserved between members and throughout evolution. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein would consist of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. The genomic organization of the gene, compared to members 1-3, encompasses 18 exons rather than 19 or 20. Although alternative splicing has been observed, there is no evidence that the C-terminal half of the IgIII domain of this protein varies between three alternate forms, as indicated for members 1-3. This particular family member preferentially binds acidic fibroblast growth factor and, although its specific function is unknown, it is overexpressed in gynecological tumor samples, suggesting a role in breast and ovarian tumorigenesis.
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Product specifications
| Category | Primary Antibodies |
| Immunogen Target | Fibroblast Growth Factor Receptor 4 (FGFR4) |
| Host | Rabbit |
| Reactivity | Human, Mouse |
| Recommended Dilution | WB: 1/1000, IHC-P: 1/50 - 1/100, FCM: 1/10 - 1/50. Not tested in IHC-F. Optimal dilutions/concentrations should be determined by the end user. |
| Clonality | Polyclonal |
| Conjugation | Unconjugated |
| Isotype | IgG |
| Purification | Purified through a protein G column, eluted with high and low pH buffers and neutralized immediately, followed by dialysis against PBS. |
| Size 1 | 50 µl |
| Size 2 | 200 µl |
| Form | Liquid |
| Tested Applications | ELISA, WB, IHC, FCM |
| Buffer | PBS containing 0.09% sodium azide. |
| Availability | Shipped within 5-10 working days. |
| Storage | Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles. |
| Dry Ice | No |
| UniProt ID | P22455 |
| NCBI Accession | NP_002002.3, NP_075252.2, NP_998812.1 |
| Alias | TKF,JTK2,CD334,FGFR-4 |
| Background | Antibody anti-FGFR4 |
| Status | RUO |
Descripción
Fibroblast growth factor receptor 4 (FGFR4) FGFR4 is a member of the fibroblast growth factor receptor (FGFR) family, characterized as a transmembrane tyrosine kinase receptor that binds FGFs to regulate cell proliferation, differentiation, migration, and survival. Structurally, FGFR4 consists of an extracellular ligand-binding domain composed of three immunoglobulin-like loops, a single transmembrane domain, and an intracellular tyrosine kinase domain. FGFR4 plays essential roles in embryonic development, metabolism, and tissue homeostasis, particularly in liver, muscle, and endocrine tissues. Ligand binding activates downstream signaling cascades, including the MAPK, PI3K-AKT, and STAT pathways, which are critical for cell growth and survival. Dysregulation of FGFR4 signaling has been implicated in various cancers, such as hepatocellular carcinoma and rhabdomyosarcoma, where overexpression or mutation drives tumor growth and metastasis. Its selective expression in specific tissues and its involvement in metabolic regulation, including bile acid synthesis, highlight its specialized biological functions and potential as a therapeutic target in oncology and metabolic disorders.
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