Klotho beta Antibody (1025C) [Unconjugated]

Images

 
Klotho beta was detected in immersion fixed HepG2 human hepatocellular carcinoma cell line using Rabbit Anti-Human Klotho beta Monoclonal Antibody (Catalog # MAB58891) at 3 µg/mL for 3 hours at room ...read more
HepG2 human hepatocellular carcinoma cell line was stained with Rabbit Anti-Human Klotho beta Monoclonal Antibody (Catalog # MAB58891, filled histogram) or isotype control antibody (Catalog # AB-105-C, open ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Flow, ICC/IF
Clone
1025C
Clonality
Monoclonal
Host
Rabbit
Conjugate
Unconjugated

Klotho beta Antibody (1025C) [Unconjugated] Summary

Additional Information
Recombinant Monoclonal Antibody.
Immunogen
Mouse myeloma cell line, NS0-derived recombinant human Klotho beta with a C-terminal 10 His tag.
Phe53-Leu997
Accession # Q86Z14
Specificity
Detects human Klotho beta in direct ELISAs.
Source
N/A
Isotype
IgG
Clonality
Monoclonal
Host
Rabbit
Gene
KLB
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Flow Cytometry 0.25 ug/10^6 cells
  • Immunocytochemistry 3-25 ug/mL

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Preservative
Sodium Azide
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Klotho beta Antibody (1025C) [Unconjugated]

  • betaKlotho
  • beta-klotho
  • BKL
  • KLB
  • klotho beta like
  • Klotho beta
  • klotho beta-like protein
  • MGC142213

Background

Klotho beta, a divergent structural member of the glycosidase I superfamily, is expressed primarily in the liver and pancreas, with lower expression in adipose tissue (1, 2). Like Klotho, Klotho beta facilitates binding between FGF19 subfamily members and their receptors via formation of a ternary complex (3). 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) (2-5). 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 (2-4, 6). The 1043 amino acid (aa) type I transmembrane protein is composed of a 51 aa signal sequence, a 943 aa extracellular domain (ECD) containing two glycosidase-like regions, a 21 aa transmembrane domain, and 28 aa intracellular tail. Since Klotho-related proteins lack critical active site Glu residues present in beta -glycosidases, it was initially unclear whether they were functional enzymes (1, 7). However, glucuronidase activity has since been demonstrated for Klotho, indicating that physiologically relevant enzymatic activity for Klotho beta is also possible (8). The extracellular domain shares 79%, 87%, 87% and 67% identity with mouse, equine, canine and rat Klotho beta, respectively. The low identity with rat reflects aa discordance within rodent ECD.

  1. Mian, I. S. (1998) Blood Cells Mol. Dis. 24:83.
  2. Kurosu, H. and M. Kuro-o (2009) Mol. Cell. Endocrinol. 299:72.
  3. Ito, S. et al. (2005) J. Clin. Invest. 115:2202.
  4. Kurosu, H. et al. (2007) J. Biol. Chem. 282:26687.
  5. Lin, B. C. et al. (2007) J. Biol. Chem. 282:27277.
  6. Ogawa, Y. et al. (2007) Proc. Natl. Acad. Sci USA 104:7432.
  7. Chang, Q. et al. (2005) Science 310:490.
  8. Goetz, R. et al. (2007) Mol. Cell. Biol. 27:3417.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Bioinformatics

Gene Symbol KLB
Entrez
Uniprot