Human Klotho  beta Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
MAB58891
MAB58891-SP
Detection  of Klotho  beta  in HepG2 Human Cell Line by Flow Cytometry.
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Human Klotho  beta Antibody Summary

Species Reactivity
Human
Specificity
Detects human Klotho beta in direct ELISAs.
Source
Recombinant Monoclonal Rabbit IgG Clone # 1025C
Purification
Protein A or G purified from cell culture supernatant
Immunogen
Mouse myeloma cell line, NS0-derived recombinant human Klotho beta with a C-terminal 10 His tag.
Phe53-Leu997
Accession # Q86Z14
Formulation
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Flow Cytometry
0.25 µg/106 cells
See below
Immunocytochemistry
3-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Flow Cytometry Detection  of Klotho  beta  in HepG2 Human Cell Line by Flow Cytometry. View Larger

Detection of Klotho  beta in HepG2 Human Cell Line by Flow Cytometry. 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 histogram), followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). View our protocol for Staining Membrane-associated Proteins.

Immunocytochemistry Klotho  beta   in HepG2 Human Cell Line. View Larger

Klotho  beta in HepG2 Human Cell Line. 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 temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; Catalog # NL004) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & 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.

Background: Klotho beta

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.

References
  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.
Entrez Gene IDs
152831 (Human); 83379 (Mouse); 289625 (Rat)
Alternate Names
betaKlotho; beta-klotho; BKL; KLB; klotho beta like; Klotho beta; klotho beta-like protein; MGC142213

Product Datasheets

FAQs

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Cell and Tissue Staining Kits

Isotype Controls

Normal Rabbit IgG Control

Ctrl,CyTOF-ready

Reconstitution Buffers

Secondary Antibodies

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