Recombinant Human Fibroblast Growth Factor Receptor 1 (FGFR1) Protein (His)

Name: Recombinant Human Fibroblast Growth Factor Receptor 1 (FGFR1) Protein (His)
Brand: Beta LifeScience
SKU: BLC-01164P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

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Product Overview

Description	Recombinant Human Fibroblast Growth Factor Receptor 1 (FGFR1) Protein (His) is produced by our Yeast expression system. This is a protein fragment.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	P11362
Target Symbol	FGFR1
Synonyms	(FGFR-1)(Basic fibroblast growth factor receptor 1)(BFGFR)(bFGF-R-1)(Fms-like tyrosine kinase 2)(FLT-2)(N-sam)(Proto-oncogene c-Fgr)(CD antigen CD331)
Species	Homo sapiens (Human)
Expression System	Yeast
Tag	N-6His
Target Protein Sequence	RPSPTLPEQAQPWGAPVEVESFLVHPGDLLQLRCRLRDDVQSINWLRDGVQLAESNRTRITGEEVEVQDSVPADSGLYACVTSSPSGSDTTYFSVNVSDALPSSEDDDDDDDSSSEEKETDNTKPNRMPVAPYWTSPEKMEKKLHAVPAAKTVKFKCPSSGTPNPTLRWLKNGKEFKPDHRIGGYKVRYATWSIIMDSVVPSDKGNYTCIVENEYGSINHTYQLDVVERSPHRPILQAGLPANKTVALGSNVEFMCKVYSDPQPHIQWLKHIEVNGSKIGPDNLPYVQILKTAGVNTTDKEMEVLHLRNVSFEDAGEYTCLAGNSIGLSHHSAWLTVLEALEERPAVMTSPLYLE
Expression Range	22-376aa
Protein Length	Partial
Mol. Weight	41.4 kDa
Research Area	Cancer
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target 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.
Subcellular Location	Cell membrane; Single-pass type I membrane protein. Nucleus. Cytoplasm, cytosol. Cytoplasmic vesicle. Note=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.
Protein Families	Protein kinase superfamily, Tyr protein kinase family, Fibroblast growth factor receptor subfamily
Database References	HGNC: 3688 OMIM: 101600 KEGG: hsa:2260 STRING: 9606.ENSP00000393312 UniGene: PMID: 29119847 CCND1 , C-MYC , and FGFR1 amplifications were observed in 34.28%, 28.57%, and 17.14% of the 35 samples (invasive ductal breast carcinoma). PMID: 30119151 High FGFR1 expression is associated with Peritoneal Dissemination Via Epithelial-to-Mesenchymal Transition in Gastric Cancer. PMID: 29976636 The present study aimed to evaluate the relationship between a common FGFR1 single nucleotide polymorphism (rs13317) with craniofacial morphology. PMID: 29872111 Clinical outcomes of myeloid/lymphoid neoplasms with fibroblast growth factor receptor-1 (FGFR1) rearrangement PMID: 29486661 Suggest that genomic alterations involving the cell cycle (TP53, CCND1, CDKN2A), as well as FGFR1 amplifications and tumour genomic alterations burden are prognostic biomarkers of survival in head and neck squamous cell carcinoma. PMID: 29331751 novel heterozygous frameshift mutation c.299_300insCCGCAGACTCCGGCCTCTATGC (p.C101Rfs*17) associated with Kallmann syndrome PMID: 29658329 FGFR3, as well as its downstream regulatory PI3K/AKT kinases, may serve as potential biomarkers for the invasiveness and prognosis of laryngeal cancer. PMID: 29299828 Our experiments presented a new mechanism adopted by GDNF supporting glioma development and indicated a possible therapeutic potential via the inhibition of proN-cadherin/FGFR1 interaction. PMID: 29750313 There was no significant difference in the expression of FGFR1 between different types of circulating tumor cells. PMID: 29764586 Our data may facilitate design of therapeutically relevant targeting molecules for selective treatment of FGFR1 overproducing cancers PMID: 29748524 Study finds infrequent BRAF alterations but enriched FGFR alterations in adults as compared with that reported in pediatric pilocytic astrocytomas. In addition, coexistent BRAF and FGFR alterations and a significant association of FGFR alterations with age and tumor location were noted. PMID: 27608415 SNP rs17182023 was correlated to reduced breast cancer risk, and was associated with FGFR1 protein expression. High FGFR1 protein expression was an independent risk factor of breast cancer, and resulted in poor prognosis. PMID: 29996114 Besides RET and HRAS, FGFR1 is only the third protooncogene found to be recurrently mutated in pheochromocytomas. PMID: 29159601 For the treatment of patients with breast cancer and FGFR1 amplifications. PMID: 29223982 presentation of the atomic structure of a 1:1:1 ternary complex that consists of the shed extracellular domain of alpha-klotho, the FGFR1c ligand-binding domain, and FGF23; in this complex, alpha-klotho simultaneously tethers FGFR1c by its D3 domain and FGF23 by its C-terminal tail, thus implementing FGF23-FGFR1c proximity and conferring stability PMID: 29342138 Study identified FGFR1, a promoter of glycolysis-related enzyme, as the target of miR-361 that promoted glycolysis and repressed oxidative phosphorylation in breast cancer cells. FGFR1 mediated the anti-glycolytic function of miR-361 by regulating the activity of PDHK1 and LDHA. PMID: 29132384 FGFR1 and/or FGF3 gene amplification correlated with a lower pathologic complete response in patients with HER2(+) early breast cancer treated with neoadjuvant anti-HER2 therapy. PMID: 28381415 Data demonstrated that FOXC1 binds to an Fgfr1 upstream regulatory region and that FOXC1 activates an Fgfr1 promoter element. Furthermore, elevated expression of Foxc1 led to increased Fgfr1-IIIc transcript promoting invasion after TGFbeta1-induced EMT. PMID: 28684636 These results suggest that FGFR1 gene amplification is a frequent alteration in squamous cell carcinoma of the lung and appears not to be a negative but rather a favorable prognostic marker for women and particularly for patients with advanced disease PMID: 29270870 These data suggest the ERalpha pathway remains active in estrogen-deprived ER(+)/FGFR1-amplified breast cancers. Therefore, these tumors are endocrine resistant and should be candidates for treatment with combinations of ER and FGFR antagonists. PMID: 28751448 Amplification of gene FGFR1 is associated with lung adenocarcinoma. PMID: 28381877 Lysosomal sequestration - resulting in an organelle-specific and pH-dependent nintedanib fluorescence - was identified as an intrinsic resistance mechanism in FGFR-driven lung cancer cells. Accordingly, combination of nintedanib with agents compromising lysosomal acidification (bafilomycin A1, chloroquine) exerted distinctly synergistic growth inhibitory effects PMID: 28882160 the close proximity between AcSDKP and FGFR1 was essential for the suppression of TGFbeta/smad signaling and EndMT associated with MAP4K4 phosphorylation (P-MAP4K4) in endothelial cells. PMID: 28771231 This study reports a highly specific internalizing antibody fragment that can serve as a therapeutic targeting agent for efficient delivery of cytotoxic drugs into FGFR1-positive lung cancer cells. PMID: 28483948 anlotinib inhibits the activation of VEGFR2, PDGFRbeta and FGFR1 as well their common downstream ERK signaling PMID: 29454091 Missense mutations in COL6A1, COL11A2, FGFR1, and BMP2 genetically predispose patients to ossification of posterior longitudinal ligaments. PMID: 27246988 High levels of FGFR1 is associated with non-small cell lung cancer. PMID: 28558758 The results of this study designate nFGFR1 signaling as a potential common dysregulated mechanism in investigated patients and potential therapeutic target in schizophrenia. PMID: 28094170 Findings indicate the great variability of fibroblast growth factor receptor 1 (FGFR1) mutation phenotypes in idiopathic hypogonadotropic hypogonadism (IHH) or Kallmann syndrome (KS). PMID: 28008864 these results show that FGFR1 polymorphism influences lower anterior face height, the distance from the upper lip to the nasal floor, and lip shape PMID: 28415752 Fibrolamellar carcinomas show polysomy of chromosome 8 and the FGFR1 locus, and only modest mRNA expression and weak or absent expression at the protein level. FGFR2 rearrangement was not detected. PMID: 26259677 endothelin-A receptor-activated ABCB1 expression has a role in nintedanib resistance in FGFR1-driven small cell lung cancer PMID: 27367030 Loss of FGFR1 does generate a gene signature that is reverse correlated with FGFR1 gene amplification and/or upregulation in human breast cancer. Our results suggest that FGFR1 signaling is a key pathway driving breast cancer lung metastasis and that targeting FGFR1 in breast cancer is an exciting approach to inhibit metastasis. PMID: 28433771 Combination treatment with AKT and FGFR kinase inhibitors have additive effects on malignant phenotypes in vitro and in vivo by inhibiting multiple signaling pathways and mitigating the compensatory upregulation of FGFR signaling induced by AKT kinase inhibition. PMID: 28008155 FGFR1/MAPK may be important for brachyury activation in lung cancer, and this pathway may be an appealing therapeutic target for a subset of brachyury-driven lung cancer. PMID: 27893433 FGFR1 alteration mainly represented by FGFR1-ITD is a frequent event in dysembryoplastic neuroepithelial tumors. Digital droplet PCRtrade mark is an easy and alternative method than whole-genome sequencing to detect FGFR1-ITD in Formalin-fixed paraffin-embedded brain tumors, in routine practice. PMID: 27791984 Report dramatic upregulation of fibroblast growth factor receptor 1 (FGFR1) and its cognate ligand FGF2 in both acquired and inherently resistant breast cancer cells. PMID: 27825137 This study reveals a stringent association between FGFR and the downstream effector c-Myc in FGFR-dependent cancers, and suggests the potential therapeutic value of c-Myc in FGFR-targeted cancer therapy. PMID: 27401245 Elevated FGFR3 and FGFR1 protein expression is common in aggressive ependymomas but likely not driven by genetic alterations. Further studies are warranted to evaluate whether ependymoma patients with high FGFR3 and/or FGFR1 expression could benefit from treatment with FGFR inhibitor based therapeutic approaches currently under evaluation in clinical trials PMID: 28468611 These data identify FGFR1 as a driver gene in multiple soft-tissue sarcoma subtypes and support FGFR1 inhibition, guided by patient selection according to the FGFR1 expression and monitoring of MAPK-ERK1/2 signaling, as a therapeutic option in this challenging group of diseases PMID: 27535980 Our results demonstrated that the AcSDKP-FGFR1 signaling pathway is critical for maintaining mitochondrial dynamics by control of miR let-7b-5p in endothelial cells. PMID: 29269295 increased FGFR1 CN was observed in two racial groups not previously reported: African Americans and Native Americans. However, FGFR1 amplification is not prognostic in laryngeal squamous cell carcinomas PMID: 29351293 This brief communication reports on a patient with an exceedingly rare "8p11 (eight-p-eleven) myeloproliferative syndrome" (EMS) with CEP110-FGFR1 rearrangement who responded to treatment with the multi-tyrosine kinase inhibitor (TKI) dasatinib PMID: 28242791 Identify mutually exclusive activating hotspot mutations in FGFR1 and related PI-3K/RAS signaling genes in malignant phyllodes tumors which are implicated in tumor pathogenesis and/or progression. PMID: 27255162 we report FGFR1 as being frequently overexpressed in HNSCC and as a candidate prognostic biomarker in HPV-negative HNSCC. PMID: 26936917 Head and neck cancers are recurrently affected by FGFR1 amplification, with a predominance in cancers of the oral cavity. PMID: 29022097 High FGFR1 expression is associated with non-small cell lung cancer. PMID: 26936993 Study present a rare case of a 46,XY patient with CHD associated with ambiguous genitalia consisting of a clitoris-like phallus and a bifid scrotum. Exome sequencing revealed novel homozygous mutations in the FGFR1 and STARD3 genes that may be associated with the phenotype. PMID: 27055092 PDGFRalpha levels are regulated by SMARCB1 expression, and assessment of clinical specimens documents the expression of both PDGFRalpha and FGFR1 in rhabdoid tumor patients. PMID: 27783942

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

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