Name : Human Beta Klotho Protein
Product Source :
Recombinant Human Beta Klotho Protein is expressed from HEK293 with His tag at the C-Terminus. It contains Met30-Thr983.[Accession | Q86Z14]
Molecular Weight :
The protein has a predicted MW of 111.6 kDa. Due to glycosylation, the protein migrates to 115-130 kDa based on Tris-Bis PAGE result.
Endotoxin Level :
Less than 1EU per μg by the LAL method.
Purity :
> 95% as determined by Tris-Bis PAGE> 95% as determined by HPLC
Formulation :
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Storage and Stability :
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Product Concentration :
Tris-Bis PAGE Human Beta Klotho on Tris-Bis PAGE under reduced conditions. The purity is greater than 95%. SEC-HPLC The purity of Human Beta Klotho is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Human Beta Klotho at 2μg/ml (100μl/Well). Dose response curve for Anti-Beta Klotho Antibody1, hFc Tag with the EC50 of 24.1ng/ml determined by ELISA (QC Test). Immobilized Human Beta Klotho at 2μg/ml (100μl/Well). Dose response curve for Anti-Beta Klotho Antibody2, hFc Tag with the EC50 of 34.6ng/ml determined by ELISA (QC Test). ELISA Data Immobilized Human FGF21, mFc Tag at 2μg/ml (100μl/Well) on the plate. Dose response curve for Human Beta Klotho, His Tag with the EC50 of 1.48μg/ml determined by ELISA. SPR Data Human Beta Klotho, His Tag captured on CM5 Chip via anti-His antibody can bind Human FGF21, mFc Tag with an affinity constant of 0.54nM as determined in SPR assay (Biacore T200).
Background :
Beta-klotho (KLB) is a coreceptor required for endocrine fibroblast growth factor (FGF) 15/19 and FGF21 signaling in the brain. Klb is prominent within the hypothalamus, which is consistent with its metabolic functions, but diverse roles for Klb are now emerging. Central Klb expression is low but discrete and may govern FGF-targeted sites.
Synonyms :
betaKlotho; beta-klotho; BKL; KLB; klotho beta like; Klotho beta; MGC142213;βKlotho; β-klotho; klotho β like; Klotho β
References & Citations :
(1)Bono BS, Koziel Ly NK, Miller PA, Williams-Ikhenoba J, Dumiaty Y, Chee MJ. Spatial distribution of beta-klotho mRNA in the mouse hypothalamus, hippocampal region, subiculum, and amygdala. J Comp Neurol. 2022 Feb 10. doi: 10.1002/cne.25306. Epub ahead of print. PMID: 35143049.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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