Human FGF-19 Antibody
R&D Systems, part of Bio-Techne | Catalog # MAB969
Scientific images may be resized, cropped, or adjusted for brightness or contrast for presentation purposes. These updates are limited to presentation and do not affect the underlying scientific interpretation of the data. Where available, additional source data may be provided upon request.
Key Product Details
Species Reactivity
Validated:
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Applications
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Label
Antibody Source
Product Specifications
Immunogen
Phe27-Lys216
Accession # O95750
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human FGF-19 Antibody
FGF‑19 in Human Prostate Cancer Tissue.
FGF-19 was detected in immersion fixed paraffin-embedded sections of human prostate cancer tissue using Mouse Anti-Human FGF-19 Monoclonal Antibody (Catalog # MAB969) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in cancer cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.Detection of d2uktu72gwvnainbyzhf.jpg by Immunohistochemistry
FGF19 is expressed focally within proliferative areas of embryonal hepatoblastoma.a Normalized counts of FGF19 detected by Smart-3SEQ. b Spatial expression of FGF19 in HB4 by 10x Visium. Adjusted p-values determined in CellRanger by negative binomial test with Benjamini-Hochberg adjustment for multiple hypothesis testing. c Quantification of FGF19+ spots/total spots in each cluster. d RNA in situ hybridization in primary hepatoblastoma HB15 detecting FGF19 (red) at low and high magnification. White dashed lines outline cells expressing FGF19. e Representative RNA in situ hybridization in serial sections of primary hepatoblastoma HB4 detecting FGF19, AXIN2, and SOX4 in red. White dashed lines outline cells expressing FGF19. Similar results obtained for n = 4 different patient specimens. f Double RNA in situ hybridization of AXIN2 (blue) / FGF19 (red), SOX4 (blue) / FGF19 (red) and FGF19 (blue) / KLB (red) in HB15 at low and high magnification. Similar results obtained for n = 4 different patient specimens. g Quantification of cells expressing AXIN2 (n = 5 images, 3074 cells), SOX4 (n = 6 images, 1441 cells), or KLB (n = 3 images, 1935 cells) that also co-express FGF19 as detected in f. Mean and s.d, ordinary one-way ANOVA with Tukey’s correction for multiple comparisons. h Quantification of cells expressing FGF19 that also co-express AXIN2 (n = 5 images, 84 cells), SOX4 (n = 6 images, 161 cells), or KLB (n = 3 images, 101 cells) as detected in f. Mean and s.d., ordinary one-way ANOVA with Tukey’s correction for multiple comparisons. For all panels – scale bar: 50 μm unless otherwise indicated, *: p < 0.05, **: p < 0.01, ***: p < 0.001, ns: not significant. Source data are provided as a Source Data file. See also Supplementary Fig. S2, S3, S4. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/39567523), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of FGF-19 by Immunohistochemistry
FGF19 is expressed focally within proliferative areas of embryonal hepatoblastoma.a Normalized counts of FGF19 detected by Smart-3SEQ. b Spatial expression of FGF19 in HB4 by 10x Visium. Adjusted p-values determined in CellRanger by negative binomial test with Benjamini-Hochberg adjustment for multiple hypothesis testing. c Quantification of FGF19+ spots/total spots in each cluster. d RNA in situ hybridization in primary hepatoblastoma HB15 detecting FGF19 (red) at low and high magnification. White dashed lines outline cells expressing FGF19. e Representative RNA in situ hybridization in serial sections of primary hepatoblastoma HB4 detecting FGF19, AXIN2, and SOX4 in red. White dashed lines outline cells expressing FGF19. Similar results obtained for n = 4 different patient specimens. f Double RNA in situ hybridization of AXIN2 (blue) / FGF19 (red), SOX4 (blue) / FGF19 (red) and FGF19 (blue) / KLB (red) in HB15 at low and high magnification. Similar results obtained for n = 4 different patient specimens. g Quantification of cells expressing AXIN2 (n = 5 images, 3074 cells), SOX4 (n = 6 images, 1441 cells), or KLB (n = 3 images, 1935 cells) that also co-express FGF19 as detected in f. Mean and s.d, ordinary one-way ANOVA with Tukey’s correction for multiple comparisons. h Quantification of cells expressing FGF19 that also co-express AXIN2 (n = 5 images, 84 cells), SOX4 (n = 6 images, 161 cells), or KLB (n = 3 images, 101 cells) as detected in f. Mean and s.d., ordinary one-way ANOVA with Tukey’s correction for multiple comparisons. For all panels – scale bar: 50 μm unless otherwise indicated, *: p < 0.05, **: p < 0.01, ***: p < 0.001, ns: not significant. Source data are provided as a Source Data file. See also Supplementary Fig. S2, S3, S4. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/39567523), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human FGF-19 Antibody
Immunohistochemistry
Sample: Immersion fixed paraffin-embedded sections of human prostate cancer tissue
Western Blot
Sample: Recombinant Human FGF-19 (Catalog # 969-FG)
Reviewed Applications
Read 1 review rated 5 using MAB969 in the following applications:
Formulation, Preparation, and Storage
Purification
Reconstitution
Formulation
Shipping
Stability & Storage
- 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: FGF-19
Fibroblast growth factor 19 (FGF-19) belongs to the large FGF family which has at least 23 members (1, 2). All FGF family members are heparin-binding growth factors with a core 120 amino acid (aa) FGF domain that allows for a common tertiary structure. FGFs are expressed during embryonic development and in restricted adult tissues. They act on cells of mesodermal and neuroectodermal origin to regulate diverse physiologic functions including angiogenesis, cell growth, pattern formation, embryonic development, metabolic regulation, cell migration, neurotrophic effects and tissue repair (3, 4). Signaling receptors for FGFs are type I transmembrane receptor tyrosine kinases belonging to the Ig superfamily. Four distinct but related classes of FGF receptors, FGF R1, 2, 3, and 4, exist. Through alternative splicing, multiple isoforms for FGF R1, 2 and 3, with distinct ligand recognition profiles, are also generated (4).
Human FGF-19 cDNA predicts a 251 aa precursor protein with a 22 aa signal peptide and a 229 aa secreted mature protein with no potential N-linked glycosylation sites (1, 2). Among FGF family members, human FGF-19 is most closely related to chicken FGF-19 and murine FGF-15, sharing approximately 61% and 51% aa sequence identity, respectively (1, 2, 5). Neither the human orthologue of mouse FGF-15, nor the mouse counterpart of human FGF-19 has been identified. With the exception of adult gall bladder epithelium, FGF-19 expression is restricted to fetal tissues (1, 2). Unlike most FGFs which bind to and activate more than one FGF receptor, FGF-19 is a specific ligand for FGF R4 (2). Similarly, another FGF family member, FGF-7 (KGF), only activates KGF R, the IIIb isoform of FGF R2 (4). During chick embryogenesis, FGF-19 has been shown to act synergistically with Wnt-8c to initiate inner ear development (5).
References
- Nishimura, T. et al. (1999) Biocheim. Biophys. Acta 1444:148.
- Xie, M. et al. (1999) Cytokine 11:729.
- Goldfarb, M. (1996) Cytokine & Growth Factor Reviews 7:311.
- Green, P. et al. (1996) BioEssays 18:639.
- Ladher, R.K. et al. (2000) Science 290:1965.
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Additional FGF-19 Products
Product Documents for Human FGF-19 Antibody
Product Specific Notices for Human FGF-19 Antibody
For research use only