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Anti-CNTFR Reference Antibody (Regeneron patent anti-CNTFR)

Anti-CNTFR Reference Antibody (Regeneron patent anti-CNTFR) on SDS-PAGE under reducing (R) condition. The purity of the protein is greater than 95%.
The purity of Anti-CNTFR Reference Antibody (Regeneron patent anti-CNTFR) is 99.27%, determined by SEC-HPLC.
PLVX-puro-CNTFR-FL cell line were stained with Regeneron patent anti-CNTFR and negative control protein respectively, washed and then followed by PE and analyzed with FACS, with the EC50 is 0.365 nM.

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Product Information
Application Applications Legend: E=ELISA WB=Western Blotting IHC=Immunohistochemistry IHC-P=Immunohistochemistry (Paraffin) IP=Immunoprecipitation IF=Immunofluorescence IC=Immunochemistry ICC=Immunocytochemistry FC=Flow Cytometry DB=Dot Blot	Functional assay, Kinetics (SPR), Kinetics (BLI), FACS, E, FTA
Primary Accession	P26992
Reactivity	Human
Clonality	Monoclonal
Isotype	IgG4SP
Calculated MW	40633 Da

Additional Information
Target/Specificity	CNTFR
Expression system	CHO

For Research Use Only. Not For Use In Diagnostic Procedures.

Patent Notice: The variable region sequence of this antibody is derived from a published third-party patent. This product is manufactured independently as a Research Use Only (RUO) reagent and is not licensed, sponsored, or endorsed by the patent holder. It is intended solely for research purposes. Customers considering any commercial, diagnostic, or therapeutic use should independently evaluate freedom-to-operate with respect to relevant third-party patents.

Protein Information
Name	CNTFR {ECO:0000303\|PubMed:7774913, ECO:0000312\|EMBL:AAA35707.1}
Function	Functions either as a membrane-anchored non-signaling receptor via a GPI anchor or, after proteolytic release, as a soluble ligand-binding chaperone, and mediates signaling of CNTF-related cytokines, including ciliary neurotrophic factor (CNTF), cardiotrophin- like cytokine factor 1 (CLCF1), and the heterodimeric cytokine formed by CLCF1 and the cytokine receptor-like factor 1 (CRLF1) (PubMed:10966616, PubMed:11285233, PubMed:11294841, PubMed:26858303, PubMed:31932351, PubMed:36930708, PubMed:7681218). Involved namely in cell survival of motor neurons and regulation of oligodendrocyte progenitor proliferation (PubMed:11285233, PubMed:19386761, PubMed:31932351). Functions within the ciliary neurotrophic factor receptor (CNTFR) complex as a membrane-anchored non-signaling receptor subunit associated with two other signaling receptor subunits IL6ST/gp130 and LIFR (PubMed:10966616, PubMed:11285233, PubMed:11294841, PubMed:26858303, PubMed:31932351, PubMed:36930708, PubMed:7681218). Also, functions within the humanin receptor complex as a membrane-anchored non-signaling receptor subunit associated with IL6ST/GP130 and IL27RA/WSX1 that mediates the MT-RNR2/humanin signaling which induces neuroprotection (PubMed:19386761). Alternatively functions as a soluble ligand-binding chaperone that binds ligand in the extracellular space, forming a cytokine complex which is delivered to the IL6ST/gp130 and LIFR signaling receptor subunits (PubMed:11285233, PubMed:31932351, PubMed:7681218). Mechanistically, ligand binding to the CNTFR induces dimerization of the IL6ST/gp130 and LIFR (or IL27RA/WSX1 in the case of MT-RNR2/humanin), which activate JAK tyrosine kinases (JAK1 or JAK2 and to lesser extent TYK2) bound to their intracellular domains (PubMed:10966616, PubMed:11285233, PubMed:11294841, PubMed:19386761, PubMed:7681218). These kinases subsequently phosphorylate IL6ST/gp130 and LIFR (or IL27RA/WSX1) (PubMed:10966616, PubMed:11285233, PubMed:11294841, PubMed:7681218). The tyrosine phosphorylated signaling receptors serve in turn as docking sites for recruitment and activation of signal transducer and activators of transcription (STAT3 and to lesser extent STAT1) (PubMed:10966616, PubMed:11285233, PubMed:11294841, PubMed:19386761, PubMed:7681218).
Cellular Location	Cell membrane; Lipid-anchor, GPI-anchor. Secreted. Note=Localized at cell membrane when associated with SORL1 (PubMed:26858303). Released from plasma membrane and extracellular vesicles (EV) by GDPD2 (PubMed:31932351)
Tissue Location	Nervous system and skeletal muscle (PubMed:1648265). Soluble form is detected in cerebrospinal fluid (CSF) and is released from skeletal muscle in response to peripheral nerve injury (PubMed:7681218).