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Anti-LIF Reference Antibody (Falbikitug）

Anti-LIF Reference Antibody (Falbikitug) on SDS-PAGE under reducing (R) condition. The purity of the protein is greater than 95%.
The purity of Anti-LIF Reference Antibody (Falbikitug） is 97.6%, determined by SEC-HPLC.
Immobilized human-LIF-his at 2 µg/mL can bind Falbikitug, EC50= 0.0788 µg/mL.

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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	P15018
Reactivity	Human
Clonality	Monoclonal
Isotype	IgG1
Calculated MW	22008 Da

Additional Information
Target/Specificity	LIF
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	LIF (HGNC:6596)
Synonyms	HILDA
Function	Functions as a cytokine that binds to the LIF receptor complex (PubMed:11294841, PubMed:14527405, PubMed:36930708). The LIF receptor complex indeed consists of two signaling receptor subunits IL6ST/gp130 and LIFR that transduce the signal into the cell (PubMed:14527405, PubMed:36930708). Functionally, regulates cell self- renewal, differentiation and survival of embryonic stem cells (ESCs) and is crucial for embryonic implantation (By similarity). Mechanistically, ligand binding to LIFR, induces heterodimerization with IL6ST/gp130 activating JAK tyrosine kinases (JAK1 or JAK2 and to a lesser extent TYK2) bound to their intracellular domains (PubMed:11294841). These kinases subsequently phosphorylate IL6ST/gp130 and LIFR (PubMed:11294841). The tyrosine phosphorylated signaling receptors serve in turn as docking sites for recruitment and activation of signal transducers and activators of transcription (STAT3 and to lesser extent STAT1) (PubMed:11294841). In parallel to the activation of the STAT3-pathway, the binding of LIF to the LIF receptor complex leads to the activation of the mitogen-activated protein kinase (MAPK) and the phosphatidylinositol 3-kinase (PI(3)K) pathways (PubMed:11294841). Tyrosine phosphorylation of the p85 subunit of PI(3)K by JAK1 leads to activation of the serine/ threonine kinase AKT (protein kinase B) (PubMed:11294841). PI(3)K-dependent signaling is required for efficient self-renewal of murine ES cells, and regulation of ERK activity is functionally important in this response (By similarity). Moreover, induces tyrosine phosphorylation of PTPN11, that associates with IL6ST/gp130-LIFR, which in turn recruits the p85 regulatory subunit of PI(3)K protein kinase, promoting PI3K-AKT activation, and GRB2-RAS-MAPK signaling (PubMed:11294841).
Cellular Location	Secreted.