Human FGFR1 ELISA Kit (HUEB0421)- High Sensitivity

Product Name:	Human Fibroblast growth factor receptor 1 (FGFR1) ELISA Kit
SKU:	HUEB0421
Size:	96T
Target:	Human Fibroblast growth factor receptor 1 (FGFR1)
Synonyms:	Basic fibroblast growth factor receptor 1, Fms-like tyrosine kinase 2, N-sam, Proto-oncogene c-Fgr, BFGFR, FLT-2, CD331, FGFR-1, BFGFR, CEK, FGFBR, FLG, FLT2, HBGFR
Assay Type:	Sandwich
Detection Method:	ELISA
Reactivity:	Human
Detection Range:	31.2-2000pg/mL
Sensitivity:	12pg/mL

Intra CV:

4.3%

Inter CV:

6.9%

Linearity:

Sample	1:2	1:4	1:8	1:16
Serum(N=5)	95-105%	99-107%	95-105%	97-106%
EDTA Plasma(N=5)	100-110%	110-122%	92-101%	93-104%
Heparin Plasma(N=5)	101-111%	85-96%	98-107%	102-112%

Recovery:

Sample Type	Average(%)	Recovery Range(%)
Serum	86	80-92
Plasma	88	82-94

Function:

Tyrosine-protein kinase that acts as cell-surface receptor for fibroblast growth factors and plays an essential role in the regulation of embryonic development, cell proliferation, differentiation and migration. Required for normal mesoderm patterning and correct axial organization during embryonic development, normal skeletogenesis and normal development of the gonadotropin-releasing hormone (GnRH) neuronal system. Phosphorylates PLCG1, FRS2, GAB1 and SHB. Ligand binding leads to the activation of several signaling cascades. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate. Phosphorylation of FRS2 triggers recruitment of GRB2, GAB1, PIK3R1 and SOS1, and mediates activation of RAS, MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling pathway, as well as of the AKT1 signaling pathway. Promotes phosphorylation of SHC1, STAT1 and PTPN11/SHP2. In the nucleus, enhances RPS6KA1 and CREB1 activity and contributes to the regulation of transcription. FGFR1 signaling is down-regulated by IL17RD/SEF, and by FGFR1 ubiquitination, internalization and degradation.

Uniprot:	P11362
Sample Type:	Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids
Specificity:	Natural and recombinant human Fibroblast growth factor receptor 1
Sub Unit:	Monomer. Homodimer after ligand binding. Interacts predominantly with FGF1 and FGF2, but can also interact with FGF3, FGF4, FGF5, FGF6, FGF8, FGF10, FGF19, FGF21, FGF22 and FGF23 (in vitro) (PubMed:1697263, PubMed:1722683, PubMed:8663044, PubMed:9655399, PubMed:12181353, PubMed:16597617, PubMed:17623664). Ligand specificity is determined by tissue-specific expression of isoforms, and differences in the third Ig-like domain are crucial for ligand specificity. Affinity for fibroblast growth factors (FGFs) is increased by heparan sulfate glycosaminoglycans that function as coreceptors. Likewise, KLB increases the affinity for FGF19, FGF21 and FGF23 (PubMed:19966287). Interacts (phosphorylated on Tyr-766) with PLCG1 (via SH2 domains) (PubMed:1656221, PubMed:1379697, PubMed:21765395). Interacts with FRS2 (PubMed:21765395). Interacts with RPS6KA1 (PubMed:15117958). Interacts (via C-terminus) with NEDD4 (via WW3 domain) (PubMed:21765395). Interacts with KL (By similarity). Interacts with SHB (via SH2 domain) (PubMed:12181353). Interacts with GRB10 (PubMed:10454568). Interacts with ANOS1; this interaction does not interfere with FGF2-binding to FGFR1, but prevents binding of heparin-bound FGF2 (PubMed:19696444). Interacts with SOX2 and SOX3. Interacts with FLRT1, FLRT2 and FLRT3 (By similarity). Found in a ternary complex with FGF1 and ITGAV:ITGB3 (PubMed:20422052, PubMed:18441324).
Subcellular Location:	Cell membrane Single-pass type I membrane protein Nucleus Cytoplasm Cytosol Cytoplasmic vesicle After ligand binding, both receptor and ligand are rapidly internalized. Can translocate to the nucleus after internalization, or by translocation from the endoplasmic reticulum or Golgi apparatus to the cytosol, and from there to the nucleus.
Storage:	Please see kit components below for exact storage details
Note:	For research use only

UniProt Protein Function:	FGFR1: a receptor tyrosine kinase of the highly-conserved fibroblast growth factor receptor (FGFR). Binds both acidic and basic fibroblast growth factors and is involved in limb induction. Point mutations cause Pfeffer syndrome (finger and toe malformations and other skeletal errors) and dominant Kallmann syndrome 2. Stem cell leukemia lymphoma syndrome (SCLL) may be caused by a t(8;13)(p12;q12) translocation that fuses a zinc finger gene, ZNF198, to FGFR1. Various myeloproliferative disorders have been linked to translocations that fuse FGFR1 to FOP, FIM, CEP1 or the atypical kinase, Bcr. Inhibitor: SU5402. 20 isoforms of the human protein produced by alternative splicing have been described.
UniProt Protein Details:	Protein type:Protein kinase, TK; Protein kinase, tyrosine (receptor); Oncoprotein; EC 2.7.10.1; Membrane protein, integral; Kinase, protein; TK group; FGFR family Chromosomal Location of Human Ortholog: 8p11.23-p11.22 Cellular Component: integral to plasma membrane; cytoplasmic membrane-bound vesicle; extracellular region; plasma membrane; integral to membrane; nucleus; cytosol; receptor complex Molecular Function:heparin binding; identical protein binding; protein binding; fibroblast growth factor binding; protein homodimerization activity; fibroblast growth factor receptor activity; protein-tyrosine kinase activity; ATP binding Biological Process: paraxial mesoderm development; axon guidance; peptidyl-tyrosine phosphorylation; nerve growth factor receptor signaling pathway; protein amino acid autophosphorylation; cell maturation; neuron migration; negative regulation of transcription from RNA polymerase II promoter; middle ear morphogenesis; protein amino acid phosphorylation; positive regulation of MAP kinase activity; sensory perception of sound; positive regulation of MAPKKK cascade; ureteric bud development; regulation of cell differentiation; induction of an organ; midbrain development; positive regulation of mesenchymal cell proliferation; positive regulation of cell proliferation; chondrocyte differentiation; angiogenesis; skeletal development; embryonic limb morphogenesis; positive regulation of cardiac muscle cell proliferation; epidermal growth factor receptor signaling pathway; inner ear morphogenesis; cell migration; fibroblast growth factor receptor signaling pathway; phosphoinositide-mediated signaling; chordate embryonic development; transcription, DNA-dependent; in utero embryonic development; outer ear morphogenesis; MAPKKK cascade; positive regulation of cell cycle; neuroblast division in the ventricular zone; positive regulation of phosphoinositide 3-kinase cascade; mesenchymal cell differentiation; skeletal morphogenesis; insulin receptor signaling pathway; auditory receptor cell development; innate immune response; positive regulation of neuron differentiation; regulation of lateral mesodermal cell fate specification Disease: Pfeiffer Syndrome; Hypogonadotropic Hypogonadism 2 With Or Without Anosmia; Jackson-weiss Syndrome; Trigonocephaly 1; Osteoglophonic Dysplasia
NCBI Summary:	The protein encoded by this gene is a member of the fibroblast growth factor receptor (FGFR) 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 consists 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. This particular family member binds both acidic and basic fibroblast growth factors and is involved in limb induction. Mutations in this gene have been associated with Pfeiffer syndrome, Jackson-Weiss syndrome, Antley-Bixler syndrome, osteoglophonic dysplasia, and autosomal dominant Kallmann syndrome 2. Chromosomal aberrations involving this gene are associated with stem cell myeloproliferative disorder and stem cell leukemia lymphoma syndrome. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]
UniProt Code:	P11362
NCBI GenInfo Identifier:	120046
NCBI Gene ID:	2260
NCBI Accession:	P11362.3
UniProt Secondary Accession:	P11362,P17049, Q02063, Q02065, Q14306, Q14307, Q53H63 Q59H40, Q5BJG2, A8K6T9, A8K8V5, C1KBH8,
UniProt Related Accession:	P11362
Molecular Weight:	91,868 Da
NCBI Full Name:	Fibroblast growth factor receptor 1
NCBI Synonym Full Names:	fibroblast growth factor receptor 1
NCBI Official Symbol:	FGFR1
NCBI Official Synonym Symbols:	CEK; FLG; HH2; OGD; FLT2; KAL2; BFGFR; CD331; FGFBR; FLT-2; HBGFR; N-SAM; FGFR-1; HRTFDS; bFGF-R-1
NCBI Protein Information:	fibroblast growth factor receptor 1; FGFR1/PLAG1 fusion; proto-oncogene c-Fgr; FMS-like tyrosine kinase 2; hydroxyaryl-protein kinase; fms-related tyrosine kinase 2; heparin-binding growth factor receptor; basic fibroblast growth factor receptor 1
UniProt Protein Name:	Fibroblast growth factor receptor 1
UniProt Synonym Protein Names:	Basic fibroblast growth factor receptor 1; BFGFR; bFGF-R-1; Fms-like tyrosine kinase 2; FLT-2; N-sam; Proto-oncogene c-Fgr
UniProt Gene Name:	FGFR1
UniProt Entry Name:	FGFR1_HUMAN

Component	Quantity (96 Assays)	Storage
ELISA Microplate (Dismountable)	8×12 strips	-20°C
Lyophilized Standard	2	-20°C
Sample Diluent	20ml	-20°C
Assay Diluent A	10mL	-20°C
Assay Diluent B	10mL	-20°C
Detection Reagent A	120µL	-20°C
Detection Reagent B	120µL	-20°C
Wash Buffer	30mL	4°C
Substrate	10mL	4°C
Stop Solution	10mL	4°C
Plate Sealer	5	-

Other materials and equipment required:

Microplate reader with 450 nm wavelength filter
Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
Incubator
Deionized or distilled water
Absorbent paper
Buffer resevoir

*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.

Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.

Step
1.	Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C.
2.	Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform.
3.	Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper.
4.	Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C.
5.	Repeat the wash process for five times as conducted in step 3.
6.	Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction.
7.	Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing.
8.	Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters.
9.	After experiment, store all reagents according to the specified storage temperature respectively until their expiry.

When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.

Sample Type	Protocol
Serum	If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles.
Plasma	Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit.
Urine & Cerebrospinal Fluid	Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid.
Cell culture supernatant	Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately.
Cell lysates	Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Tissue homogenates	The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C.
Tissue lysates	Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C.
Breast Milk	Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles.

ELISA	Antibodies
Human FGFR1 ELISA Kit	Anti-FGFR1 Antibody (CAB0082)
Human FGFR1 (Fibroblast Growth Factor Receptor 1) CLIA Kit (HUES00245)	Anti-FGFR1 Antibody (CAB13493)
Human FGFR1 (Fibroblast Growth Factor Receptor 1) ELISA Kit (HUES01564)	Anti-FGFR1 Antibody (CAB2073)
FGFR1 (Phospho-Tyr654) Colorimetric Cell-Based ELISA Kit	Anti-Phospho-FGFR1-Y766 Antibody (CABP0035)
	Anti-Phospho-FGFR1-Y653 Antibody (CABP0036)