• Product name
  • Description
    Rabbit polyclonal to Klotho
  • Host species
  • Tested applications
    Suitable for: IHC-P, WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Rabbit, Horse, Guinea pig, Cow, Cat, Dog
  • Immunogen

    Synthetic peptide corresponding to a region within internal sequence amino acids 251-300 (GRLAPGIRGS PRLGYLVAHN LLLAHAKVWH LYNTSFRPTQ GGQVSIALSS) of Human Klotho (BAA24941).

  • Positive control
    • NCI-H226 cell lysate



Our Abpromise guarantee covers the use of ab98111 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use a concentration of 5 µg/ml.
WB Use a concentration of 1 µg/ml. Predicted molecular weight: 62 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • Function
    May have weak glycosidase activity towards glucuronylated steroids. However, it lacks essential active site Glu residues at positions 239 and 872, suggesting it may be inactive as a glycosidase in vivo. May be involved in the regulation of calcium and phosphorus homeostasis by inhibiting the synthesis of active vitamin D (By similarity). Essential factor for the specific interaction between FGF23 and FGFR1.
    The Klotho peptide generated by cleavage of the membrane-bound isoform may be an anti-aging circulating hormone which would extend life span by inhibiting insulin/IGF1 signaling.
  • Tissue specificity
    Present in cortical renal tubules (at protein level). Soluble peptide is present in serum and cerebrospinal fluid. Expressed in kidney, placenta, small intestine and prostate. Down-regulated in renal cell carcinomas, hepatocellular carcinomas, and in chronic renal failure kidney.
  • Involvement in disease
    Defects in KL are a cause of hyperphosphatemic familial tumoral calcinosis (HFTC) [MIM:211900]. A severe metabolic disorder that manifests with hyperphosphatemia and massive calcium deposits in the skin and subcutaneous tissues. Some patients manifest recurrent, transient, painful swellings of the long bones associated with the radiographic findings of periosteal reaction and cortical hyperostosis and absence of skin involvement.
  • Sequence similarities
    Belongs to the glycosyl hydrolase 1 family. Klotho subfamily.
  • Domain
    Contains 2 glycosyl hydrolase 1 regions. However, the first region lacks the essential Glu active site residue at position 239, and the second one lacks the essential Glu active site residue at position 872.
  • Post-translational
  • Cellular localization
    Secreted and Cell membrane. Isoform 1 shedding leads to a soluble peptide.
  • Information by UniProt
  • Database links
  • Alternative names
    • Kl antibody
    • KLOT_HUMAN antibody
    • Klotho peptide antibody


  • Anti-Klotho antibody (ab98111) at 1 µg/ml (in 5% skim milk / PBS buffer) + NCI-H226 cell lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size: 62 kDa

    Gel concentration: 6-18%
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human kidney tissue labelling Klotho with ab98111 at 5µg/ml.


This product has been referenced in:
  • Watanabe R  et al. Enpp1 is an anti-aging factor that regulates Klotho under phosphate overload conditions. Sci Rep 7:7786 (2017). WB ; Mouse . Read more (PubMed: 28798354) »
  • Sneddon WB  et al. Convergent Signaling Pathways Regulate Parathyroid Hormone and Fibroblast Growth Factor-23 Action on NPT2A-mediated Phosphate Transport. J Biol Chem 291:18632-42 (2016). Read more (PubMed: 27432882) »

See all 2 Publications for this product

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