Mouse Klotho Antibody Summary
Applications
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.
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.
Scientific Data
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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).
Preparation and Storage
- 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
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).
- Nabeshima, Y. (2006) Sci. Aging Knowl. Environ. 8:pe11.
- Kuro-o, M. et al. (1997) Nature 390:45.
- Shiraki-Iida, T. et al. (1998) FEBS Lett. 424:6.
- Imura, A. et al. (2004) FEBS Lett. 565:143.
- Kurosu, H. et al. (2005) Science 309:1829.
- Kurosu, H. et al. (2006) J. Biol. Chem. 281:6120.
- Tsujikawa, H. et al. (2003) Mol. Endocrinol. 17:2393.
- Wu, X. et al. (2007) J. Biol. Chem. 282:29069.
- Chang, Q. et al. (2005) Science 310:490.
- Yamamoto, M. et al. (2005) J. Biol. Chem. 280:38029.
- Liu, H. et al. (2007) Science 317:803.
- Imura, A. et al. (2007) Science 316:1615.
Product Datasheets
Citations for Mouse Klotho Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Citations: Showing 1 - 6
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Regulation of aged skeletal muscle regeneration by circulating extracellular vesicles
Authors: Amrita Sahu, Zachary J. Clemens, Sunita N. Shinde, Sruthi Sivakumar, Abish Pius, Ankit Bhatia et al.
Nature Aging
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Age-related matrix stiffening epigenetically regulates alpha-Klotho expression and compromises chondrocyte integrity
Authors: H Iijima, G Gilmer, K Wang, AC Bean, Y He, H Lin, WY Tang, D Lamont, C Tai, A Ito, JJ Jones, C Evans, F Ambrosio
Nature Communications, 2023-01-10;14(1):18.
Species: Mouse
Sample Types: Whole Tissue
Applications: IHC -
The cooperation of FGF receptor and Klotho is involved in excretory canal development and regulation of metabolic homeostasis in Caenorhabditis elegans.
Authors: Polanska UM, Edwards E, Fernig DG
J. Biol. Chem., 2010-12-21;286(7):5657-66.
Species: C. elegans
Sample Types: Tissue Homogenates
Applications: Immunoprecipitation, Western Blot -
LncRNA PVT1 regulates atrial fibrosis via miR-128-3p-SP1-TGF-beta 1-Smad axis in atrial fibrillation
Authors: Feng Cao, Zhe Li, Wen-mao Ding, Ling Yan, Qing-yan Zhao
Molecular Medicine
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Alpha‐Klotho, a critical protein for lung health, is not expressed in normal lung
Authors: Jianning Zhang, Khoa Cao, Johanne V. Pastor, Liping Li, Orson W. Moe, Connie C. W. Hsia
FASEB BioAdvances
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Modulation of Klotho expression in injured muscle perturbs Wnt signalling and influences the rate of muscle growth
Authors: Steven S. Welc, Michelle Wehling‐Henricks, Makoto Kuro‐o, Kyle A. Thomas, James G. Tidball
Experimental Physiology
FAQs
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Does Mouse Klotho antibody, Catalog # MAB1819, cross react with Rat?
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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