Human FGFR1 alpha (IIIc) APC‑conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # FAB11336A

R&D Systems, part of Bio-Techne
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FAB11336A-100
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Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry

Label

Allophycocyanin (Excitation = 620-650 nm, Emission = 660-670 nm)

Antibody Source

Monoclonal Mouse IgG2B Clone # 1058809

View all FGFR1 alpha Antibodies »

Product Specifications

Immunogen

Human embryonic kidney cell, HEK293-derived human FGFR1 alpha
Arg22-Glu376
Accession # P11362.3

Specificity

Detects human FGFR1 alpha (IIIc) in direct ELISA

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2B

Scientific Data Images for Human FGFR1 alpha (IIIc) APC‑conjugated Antibody

Detection of FGFR1 alpha in HEK293 cells by Flow Cytometry.

HEK293 cells transfected with Human FGFR1 and eGFP (A) vs irrelevant and eGFP (B) were stained with Mouse Anti-Human FGFR1 alpha APC-conjugated Monoclonal Antibody (Catalog # FAB11336A) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B). View our protocol for Staining Membrane-associated Proteins.

Applications for Human FGFR1 alpha (IIIc) APC‑conjugated Antibody

Application
Recommended Usage

Flow Cytometry

10 µL/106 cells
Sample: HEK293 cells transfected with Human FGFR1 and eGFP vs irrelevant
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

Supplied in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: FGFR1 alpha

Fibroblast growth factor receptor 1 (FGFR1) belongs to a family of type I transmembrane tyrosine kinases which mediate the biological functions of FGFs that are involved in a multitude of physiological and pathological cellular processes (1). The FGFR family is comprised of 4 structurally conserved members (FGFR1-4) all possessing an extracellular domain (ECD) with three immunoglobulin (Ig)-like domains, an acid-box region containing a run of acidic residues between the IgI and IgII domains, a transmembrane domain and cytoplasmic split tyrosine-kinase domain (1, 2). The ECD of mature, full-length FGFR1 shares 98% amino acid sequence identity with mouse FGFR1. Alternative splicing generates multiple forms of FGFR1-3, each with unique signaling characteristics (1-3). For FGFR1, alternative splicing of the ECD generates FGFR1A, FGFR1B, and FGFR1G isoforms of the receptor with the A isoform containing three Ig domains, while the B and G isoforms lack the N‑terminal IgI domain (3). Additional splicing of the IgIII domain, results in IIIa, IIIb, or IIIc isoforms (3). Only the alpha isoform has been identified for FGFR3 and FGFR4 and FGFR4 also lacks the IIIb and IIIc splicing events (4). The FGFR splice variants also exhibit distinct and varying binding affinities for different FGF ligands (2). FGFRs mediate the FGF signaling cascade which regulate developmental processes including cellular proliferation, differentiation, and migration, morphogenesis, and patterning (5). FGFRs transduce the signals through three dominant pathways including RAS/MAPK, PI3k/AKT, and PLC gamma (6). FGFR1 the most abundant FGFR and is widely expressed in many adult human tissues, but the splice variants display distinct tissue-specific differences with IIIc splice variants expressed in mesenchymal tissue (4, 7, 8). Mutations in FGFR1 or misregulation of FGFR1 mediated signaling is found in multiple diseases, with FGFR1A(IIIc) specifically upregulated, from breast and pancreatic cancer to Pfeiffer syndrome and osteoarthritis (4, 9-11). A soluble version of the FGFR1A(IIIc) splice variant has shown anti-angiogenic and anti-proliferative properties in multiple cancer cell line models (11).

References

  1. Ornitz, D.M. and Itoh, N. (2015) Wiley Interdiscip. Rev. Dev. Biol. 4:215.
  2. Zhang, X. et al. (2006) J Biol. Chem. 281:15694.
  3. Ferguson, H.R. et al. (2021) Signaling Cells 10:1201.
  4. Holzmann, K. et al. (2012) J Nucleic. Acids 2012:950508.
  5. Xie, Y. et al. (2020) Sig. Transduct. Target Ther. 5:181.
  6. Mossahebi-Mohammadi, M. et al. (2020) Front Cell Dev. Biol. 18:79.
  7. Hughes, S.E. (1997) J. Histochem. Cytochem. 45:1005.
  8. Delezoide, A.L. et al. (1998) Mech. Dev. 77:19.
  9. Yamashita-Sugahara, Y. et al. (2016) Sci. Rep. 6:35908.
  10. Teven, C.M. et al. (2014) Genes Dis. 1:199.
  11. Babina, I. and Turner, N. (2017) Nat. Rev Cancer 17:318.

Long Name

Fibroblast Growth Factor Receptor 1 alpha

Alternate Names

FGF R1a

UniProt

P11362.3

Additional FGFR1 alpha Products

Product Documents for Human FGFR1 alpha (IIIc) APC‑conjugated Antibody

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