Key Product Details

Species Reactivity

Validated:

Mouse

Cited:

Human, Mouse, Nematode - Caenorhabditis elegans

Applications

Validated:

Immunohistochemistry, ELISA

Cited:

Immunohistochemistry, Western Blot, Immunoprecipitation

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2A Clone # 236214
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Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant mouse Klotho

Specificity

Detects mouse Klotho (aa 23-550 and aa 35-982) in direct ELISAs and Western blots. Does not cross-react with recombinant human Klotho or recombinant mouse Klotho B.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2A

Scientific Data Images for Mouse Klotho Antibody

Mouse Klotho Antibody in ELISA Standard Curve.

Mouse Klotho ELISA Standard Curve.

Recombinant Mouse Klotho protein was serially diluted 2-fold and captured by Rat Anti-Mouse Klotho Monoclonal Antibody (Catalog # MAB1819) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse Klotho Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1819) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998) followed by Substrate Solution (Catalog # DY999) and stopping the enzymatic reaction with Stop Solution (Catalog # DY994).
Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Epigenetic regulation of alpha -Klotho by stiff matrix disrupts chondrocytes health. A Stiff substrates downregulated Klotho expression and increased Klotho promoter methylation as well as global DNA methylation in young chondrocytes (n = 3/group). B Stiff substrates increased DNMT1 expression in young chondrocytes as quantified by immunofluorescence (n = 5/group; 30–50 cells per individual sample). Scale bar: 20 μm. C Stiff substrates increased binding of DNMT1 at Klotho promoter in young chondrocytes quantified by chromatin immunoprecipitation (ChIP) analyses (n = 4/group). D Stiff substrates increased binding of RNA Polymerase II (Pol II), active chromatin mark H3K4M2, and c-MYC, but not the repressive chromatin mark, H3K9M2, at the Dnmt1 promoter in young chondrocytes, as quantified by ChIP analyses (n = 4/group). E, F siRNA Dnmt1 treatment inhibited the deleterious effect of a stiff microenvironment on alpha -Klotho, type II collagen (Col2), and aggrecan (Acan) expression, as quantified by immunofluorescence (n = 4/group; 40–50 cells per individual sample). Scale bar: 50 μm. G, H 5-Aza-2’-deoxycytidine (5 Aza) treatment inhibits the deleterious effect of a stiff microenvironment on alpha -Klotho, Col2, and Acan expression. The effects of 5 Aza treatment were blocked when combined with siRNA Klotho (siRNA KL) treatment. Data were quantified by immunofluorescence (n = 4/group; 30–45 cells per individual sample). Scale bar: 50 μm. Statistical analyses were performed using a linear mixed effect model (A–D), two-tailed paired t test (E–G) or analysis of variance with post-hoc Tukey–Kramer test (H). **p < 0.01, ***p < 0.001. Data are presented as means ±95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Epigenetic regulation of alpha -Klotho by stiff matrix disrupts chondrocytes health. A Stiff substrates downregulated Klotho expression and increased Klotho promoter methylation as well as global DNA methylation in young chondrocytes (n = 3/group). B Stiff substrates increased DNMT1 expression in young chondrocytes as quantified by immunofluorescence (n = 5/group; 30–50 cells per individual sample). Scale bar: 20 μm. C Stiff substrates increased binding of DNMT1 at Klotho promoter in young chondrocytes quantified by chromatin immunoprecipitation (ChIP) analyses (n = 4/group). D Stiff substrates increased binding of RNA Polymerase II (Pol II), active chromatin mark H3K4M2, and c-MYC, but not the repressive chromatin mark, H3K9M2, at the Dnmt1 promoter in young chondrocytes, as quantified by ChIP analyses (n = 4/group). E, F siRNA Dnmt1 treatment inhibited the deleterious effect of a stiff microenvironment on alpha -Klotho, type II collagen (Col2), and aggrecan (Acan) expression, as quantified by immunofluorescence (n = 4/group; 40–50 cells per individual sample). Scale bar: 50 μm. G, H 5-Aza-2’-deoxycytidine (5 Aza) treatment inhibits the deleterious effect of a stiff microenvironment on alpha -Klotho, Col2, and Acan expression. The effects of 5 Aza treatment were blocked when combined with siRNA Klotho (siRNA KL) treatment. Data were quantified by immunofluorescence (n = 4/group; 30–45 cells per individual sample). Scale bar: 50 μm. Statistical analyses were performed using a linear mixed effect model (A–D), two-tailed paired t test (E–G) or analysis of variance with post-hoc Tukey–Kramer test (H). **p < 0.01, ***p < 0.001. Data are presented as means ±95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Epigenetic regulation of alpha -Klotho by stiff matrix disrupts chondrocytes health. A Stiff substrates downregulated Klotho expression and increased Klotho promoter methylation as well as global DNA methylation in young chondrocytes (n = 3/group). B Stiff substrates increased DNMT1 expression in young chondrocytes as quantified by immunofluorescence (n = 5/group; 30–50 cells per individual sample). Scale bar: 20 μm. C Stiff substrates increased binding of DNMT1 at Klotho promoter in young chondrocytes quantified by chromatin immunoprecipitation (ChIP) analyses (n = 4/group). D Stiff substrates increased binding of RNA Polymerase II (Pol II), active chromatin mark H3K4M2, and c-MYC, but not the repressive chromatin mark, H3K9M2, at the Dnmt1 promoter in young chondrocytes, as quantified by ChIP analyses (n = 4/group). E, F siRNA Dnmt1 treatment inhibited the deleterious effect of a stiff microenvironment on alpha -Klotho, type II collagen (Col2), and aggrecan (Acan) expression, as quantified by immunofluorescence (n = 4/group; 40–50 cells per individual sample). Scale bar: 50 μm. G, H 5-Aza-2’-deoxycytidine (5 Aza) treatment inhibits the deleterious effect of a stiff microenvironment on alpha -Klotho, Col2, and Acan expression. The effects of 5 Aza treatment were blocked when combined with siRNA Klotho (siRNA KL) treatment. Data were quantified by immunofluorescence (n = 4/group; 30–45 cells per individual sample). Scale bar: 50 μm. Statistical analyses were performed using a linear mixed effect model (A–D), two-tailed paired t test (E–G) or analysis of variance with post-hoc Tukey–Kramer test (H). **p < 0.01, ***p < 0.001. Data are presented as means ±95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Age-related declines in alpha -Klotho are associated with cartilage degeneration in male mice. A Aging induced a progressive decline of alpha -Klotho in the murine medial tibia (n = 5/sex/age). White arrows indicate alpha -Klotho-positive chondrocytes. White dashed lines indicate cartilage surface. AC articular cartilage. Scale bar: 10 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (50–100 cells per mouse). B Cartilage in older adults (≥65 years old; 71.9 ± 2.91 years; n = 7 [1 female]) displayed reduced alpha -Klotho expression compared to young adults (<40 years old; 27.6 ± 6.85 years; n = 7 [2 females]). Scale bar: 20 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (30–70 cells per cartilage sample). C Loss-of function in Klotho (Klotho+/−) triggered murine cartilage degeneration in a sex-dependent manner (young, n = 7 for wild-type [3 females], n = 10 for Klotho+/− [5 females]; middle-aged, n = 10 for wild-type [5 females], n = 8 for Klotho+/− [5 females]). Black arrows indicate cartilage surface disruption. AC articular cartilage. Scale bar: 50 μm. Statistical analyses were performed using linear regression (A), two-way ANOVA (C), and a two-tailed Student t test (B). Age-sex interaction was not significant for  alpha -Klotho expression in mice (A, p = 0.468). Data are presented as means ± 95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Age-related declines in alpha -Klotho are associated with cartilage degeneration in male mice. A Aging induced a progressive decline of alpha -Klotho in the murine medial tibia (n = 5/sex/age). White arrows indicate alpha -Klotho-positive chondrocytes. White dashed lines indicate cartilage surface. AC articular cartilage. Scale bar: 10 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (50–100 cells per mouse). B Cartilage in older adults (≥65 years old; 71.9 ± 2.91 years; n = 7 [1 female]) displayed reduced alpha -Klotho expression compared to young adults (<40 years old; 27.6 ± 6.85 years; n = 7 [2 females]). Scale bar: 20 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (30–70 cells per cartilage sample). C Loss-of function in Klotho (Klotho+/−) triggered murine cartilage degeneration in a sex-dependent manner (young, n = 7 for wild-type [3 females], n = 10 for Klotho+/− [5 females]; middle-aged, n = 10 for wild-type [5 females], n = 8 for Klotho+/− [5 females]). Black arrows indicate cartilage surface disruption. AC articular cartilage. Scale bar: 50 μm. Statistical analyses were performed using linear regression (A), two-way ANOVA (C), and a two-tailed Student t test (B). Age-sex interaction was not significant for  alpha -Klotho expression in mice (A, p = 0.468). Data are presented as means ± 95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Klotho by Immunocytochemistry/ Immunofluorescence

Age-related declines in alpha -Klotho are associated with cartilage degeneration in male mice. A Aging induced a progressive decline of alpha -Klotho in the murine medial tibia (n = 5/sex/age). White arrows indicate alpha -Klotho-positive chondrocytes. White dashed lines indicate cartilage surface. AC articular cartilage. Scale bar: 10 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (50–100 cells per mouse). B Cartilage in older adults (≥65 years old; 71.9 ± 2.91 years; n = 7 [1 female]) displayed reduced alpha -Klotho expression compared to young adults (<40 years old; 27.6 ± 6.85 years; n = 7 [2 females]). Scale bar: 20 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (30–70 cells per cartilage sample). C Loss-of function in Klotho (Klotho+/−) triggered murine cartilage degeneration in a sex-dependent manner (young, n = 7 for wild-type [3 females], n = 10 for Klotho+/− [5 females]; middle-aged, n = 10 for wild-type [5 females], n = 8 for Klotho+/− [5 females]). Black arrows indicate cartilage surface disruption. AC articular cartilage. Scale bar: 50 μm. Statistical analyses were performed using linear regression (A), two-way ANOVA (C), and a two-tailed Student t test (B). Age-sex interaction was not significant for  alpha -Klotho expression in mice (A, p = 0.468). Data are presented as means ± 95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Mouse Klotho by Immunocytochemistry/ Immunofluorescence

Epigenetic regulation of alpha -Klotho by stiff matrix disrupts chondrocytes health. A Stiff substrates downregulated Klotho expression and increased Klotho promoter methylation as well as global DNA methylation in young chondrocytes (n = 3/group). B Stiff substrates increased DNMT1 expression in young chondrocytes as quantified by immunofluorescence (n = 5/group; 30–50 cells per individual sample). Scale bar: 20 μm. C Stiff substrates increased binding of DNMT1 at Klotho promoter in young chondrocytes quantified by chromatin immunoprecipitation (ChIP) analyses (n = 4/group). D Stiff substrates increased binding of RNA Polymerase II (Pol II), active chromatin mark H3K4M2, and c-MYC, but not the repressive chromatin mark, H3K9M2, at the Dnmt1 promoter in young chondrocytes, as quantified by ChIP analyses (n = 4/group). E, F siRNA Dnmt1 treatment inhibited the deleterious effect of a stiff microenvironment on alpha -Klotho, type II collagen (Col2), and aggrecan (Acan) expression, as quantified by immunofluorescence (n = 4/group; 40–50 cells per individual sample). Scale bar: 50 μm. G, H 5-Aza-2’-deoxycytidine (5 Aza) treatment inhibits the deleterious effect of a stiff microenvironment on alpha -Klotho, Col2, and Acan expression. The effects of 5 Aza treatment were blocked when combined with siRNA Klotho (siRNA KL) treatment. Data were quantified by immunofluorescence (n = 4/group; 30–45 cells per individual sample). Scale bar: 50 μm. Statistical analyses were performed using a linear mixed effect model (A–D), two-tailed paired t test (E–G) or analysis of variance with post-hoc Tukey–Kramer test (H). **p < 0.01, ***p < 0.001. Data are presented as means ±95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of Klotho by Immunocytochemistry/ Immunofluorescence

Detection of Klotho by Immunocytochemistry/ Immunofluorescence

Age-related declines in alpha -Klotho are associated with cartilage degeneration in male mice. A Aging induced a progressive decline of alpha -Klotho in the murine medial tibia (n = 5/sex/age). White arrows indicate alpha -Klotho-positive chondrocytes. White dashed lines indicate cartilage surface. AC articular cartilage. Scale bar: 10 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (50–100 cells per mouse). B Cartilage in older adults (≥65 years old; 71.9 ± 2.91 years; n = 7 [1 female]) displayed reduced alpha -Klotho expression compared to young adults (<40 years old; 27.6 ± 6.85 years; n = 7 [2 females]). Scale bar: 20 μm. alpha -Klotho expression per cell was quantified by immunofluorescence (30–70 cells per cartilage sample). C Loss-of function in Klotho (Klotho+/−) triggered murine cartilage degeneration in a sex-dependent manner (young, n = 7 for wild-type [3 females], n = 10 for Klotho+/− [5 females]; middle-aged, n = 10 for wild-type [5 females], n = 8 for Klotho+/− [5 females]). Black arrows indicate cartilage surface disruption. AC articular cartilage. Scale bar: 50 μm. Statistical analyses were performed using linear regression (A), two-way ANOVA (C), and a two-tailed Student t test (B). Age-sex interaction was not significant for  alpha -Klotho expression in mice (A, p = 0.468). Data are presented as means ± 95% confidence intervals. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36627269), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Mouse Klotho Antibody

Application
Recommended Usage

ELISA

This antibody functions as an ELISA capture antibody when paired with Goat Anti-Mouse Klotho Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1819).

This product is intended for assay development on various assay platforms requiring antibody pairs.

Immunohistochemistry

8-25 µg/mL
Sample: Perfusion fixed frozen sections of mouse kindney and intestine.

Reviewed Applications

Read 1 review rated 5 using MAB1819 in the following applications:

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.


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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

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.

Calculators

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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Background: Klotho

Klotho, also called Klotho-alpha, is the founding member of the Klotho family within the glycosidase-1 superfamily (1, 2). Klotho is expressed in areas concerned with calcium regulation, predominantly in the kidney distal convoluted tubules, but also in the brain choroid plexus (which produces cerebrospinal fluid) and the parathyroid (1). The 1014 amino acid (aa) type I transmembrane protein contains a 34 aa signal sequence, a 948 aa extracellular domain (ECD) containing two extracellular glycosidase-like domains, a 21 aa transmembrane domain and an 11 aa intracellular domain. Within the ECD, mouse Klotho shares 95%, 87%, and 87% aa identity with rat, human, and equine Klotho, respectively. Although a truncated 554 aa isoform predicts a soluble 70 kDa form, the soluble form found in plasma and cerebrospinal fluid is a 130 kDa form produced by proteolytic cleavage of the glycosylated 135 kDa full-length Klotho (3, 4). A prominent intracellular 120 kDa form of Klotho is localized to endoplasmic reticulum and Golgi membranes (4). Klotho is named for the Greek goddess who spins the thread of life. The phenotype of Klotho-deficient mice resembles premature aging, including arteriosclerosis, osteoporosis, skin atrophy, infertility, emphysema, and premature death (2). Conversely, excess Klotho extends lifespan (5). Klotho acts as a cofactor for interaction of FGF-23 with FGF R1 (6). This interaction negatively regulates 1 alpha -hydroxylase, the rate-limiting enzyme in the synthesis of 1,25(OH)2D3 (vitamin D) (7). Klotho-deficient mice show severe hyperphosphatemia and ectopic calcification of soft tissues due to excess vitamin D (2, 7). Both Klotho and Klotho-beta are co-factors for FGF-19 binding (8). Klotho also shows glucuronidase activity which activates the renal ion channel TRPV5 to reabsorb urinary calcium (9). Klotho has been reported to downregulate insulin or IGF-I signaling in adipocytes, to bind and antagonize Wnt molecules, and to facilitate release of parathyroid hormone (10-12).

References

  1. Nabeshima, Y. (2006) Sci. Aging Knowl. Environ. 8:pe11. 
  2. Kuro-o, M. et al. (1997) Nature 390:45. 
  3. Shiraki-Iida, T. et al. (1998) FEBS Lett. 424:6. 
  4. Imura, A. et al. (2004) FEBS Lett. 565:143. 
  5. Kurosu, H. et al. (2005) Science 309:1829. 
  6. Kurosu, H. et al. (2006) J. Biol. Chem. 281:6120. 
  7. Tsujikawa, H. et al. (2003) Mol. Endocrinol. 17:2393.
  8. Wu, X. et al. (2007) J. Biol. Chem. 282:29069.
  9. Chang, Q. et al. (2005) Science 310:490.
  10. Yamamoto, M. et al. (2005) J. Biol. Chem. 280:38029.
  11. Liu, H. et al. (2007) Science 317:803.
  12. Imura, A. et al. (2007) Science 316:1615.

Alternate Names

KL

Entrez Gene IDs

9365 (Human); 16591 (Mouse)

Gene Symbol

KL

Additional Klotho Products

Product Documents for Mouse Klotho Antibody

Certificate of Analysis

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Product Specific Notices for Mouse Klotho Antibody

For research use only

Citations for Mouse Klotho Antibody

Customer Reviews for Mouse Klotho Antibody (1)

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  • Mouse Klotho Antibody
    Name: Anonymous
    Application: Immunoprecipitation
    Sample Tested: C. elegans proteins
    Species: elegans
    Verified Customer | Posted 03/18/2022
    Mouse Klotho Antibody MAB1819

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Protocols

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FAQs for Mouse Klotho Antibody

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  • Q: Does Mouse Klotho antibody, Catalog # MAB1819, cross react with Rat?

    A: When Rat Samples were tested with this antibody, we did observe a positive result in Western Blot. We would expect this antibody to recognize Rat samples, but have not done extensive validation testing for samples from this species. 

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