ProSci

Human Klotho beta/KLB Recombinant Protein (85-980)

Product Code:
PSI-85-980
Product Group:
Recombinant Proteins
Supplier:
ProSci
Regulatory Status:
RUO
Target Species:
Human
Applications:
  • Enzyme-Linked Immunosorbent Assay (ELISA)
  • Immunogen
  • SDS-PAGE
  • Western Blot (WB)
Shipping:
RT
Storage:
Store at -20°C. Store the lyophilized protein at -20°C to -80 °C up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20°C for 3 months, at 2-8°C for up to 1 week.
 

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This product comes from: United States.
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Further Information

Application Note:
ELISA, Immunogen, SDS-PAGE, WB, Bioactivity Test
Background:
Klotho beta/KLB iis a divergent structural member of the glycosidase I superfamily, is expressed primarily in the liver and pancreas, with lower expression in adipose tissue . Like Klotho, Klotho beta facilitates binding between FGF19 subfamily members and their receptors via formation of a ternary complex . The Klotho beta mediated interaction of human FGF19 (mouse FGF15) with FGF Receptor 4 in the liver negatively regulates bile acid synthesis by controlling the secretion of two key bile acid synthase genes, cholesterol 7-alpha hydroxylase (Cyp7a1) and sterol 12-alpha hydroxylase (Cyp8b1) . Klotho beta is also a cofactor for the interaction of FGF21 with FGF Receptor 1c in adipocytes, which allows FGF21 to stimulate GLUT1 expression, upregulating adipocyte insulin-dependent glucose uptake . Since Klotho-related proteins lack critical active site Glu residues present in beta -glycosidases, it was initially unclear whether they were functional enzymes . However, glucuronidase activity has since been demonstrated for Klotho, indicating that physiologically relevant enzymatic activity for Klotho beta is also possible .
Buffer:
Lyophilized from a 0.22 um filtered solution of PBS, pH 7.4.
NCBI Gene ID:
152831
Physical State:
Lyophilized
Predicted MW:
110.25 kDa
Protein Accession:
NP_783864.1
Source Species:
HEK293 cells
SwissProt:
Q86Z14

Documents