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Human KL(Klotho) ELISA Kit

  • Cat.No.:E-EL-H5451

  • Reactivity: Human

To Purchase E-EL-H5451

Size:
  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609
Qty:

Product Details

Properties

Assay type Sandwich-ELISA
Format 96T/48T
Assay time 3.5h
Detection range 0.31-20 ng/mL
Sensitivity 0.19 ng/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human KL in samples. No significant cross-reactivity or interference between Human KL and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Human KL concentrations in serum, plasma and other biological fluids.

Test Principle

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human KL. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human KL and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human KL, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of Human KL. You can calculate the concentration of Human KL in the samples by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
ItemSpecificationsStorage
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 6 months
Reference Standard 96T: 2 vials
48T: 1 vial
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL
HRP Conjugate Diluent 1 vial, 14 mL
Concentrated Wash Buffer (25×) 1 vial, 30 mL
Substrate Reagent 1 vial, 10 mL 2-8℃(Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Technical Data

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human KL were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human KL were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (ng/mL) 1.04 2.05 9.74 0.97 2.04 9.08
Standard deviation 0.06 0.11 0.34 0.05 0.10 0.48
CV (%) 5.77 5.37 3.49 5.15 4.90 5.29

Recovery

The recovery of Human KL spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 86-99 91
EDTA plasma (n=8) 89-102 96
Cell culture media (n=8) 85-98 90

Linearity

Samples were spiked with high concentrations of Human KL and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt:   Q9UEF7
Research AreaCancer, Metabolism, Developmental biology, Signal transduction

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results

Citations

  1. ANNALS OF THE RHEUMATIC DISEASES (2022) IF: 19.103
    AB0240 CORRELATION BETWEEN KLOTHO LEVELS AND ANKLE-BRACHIAL INDEX IN FEMALE RHEUMATOID ARTHRITIS PATIENTS

    DOI: 10.1136/annrheumdis-2022-eular.446

    Sample: serum
  2. Frontiers in Psychiatry (2022) IF: 5.435
    Efficacy of a novel proprietary dietary supplement (TRI 360TM) on psychological symptoms and stress-related quality of life in adult subjects: A randomized controlled clinical trial

    DOI: 10.3389/fpsyt.2022.919284

    PMID: 36032243

    Sample: serum
  3. Frontiers in Physiology (2022) IF: 4.566
    CCL5 Suppresses Klotho Expression via p-STAT3/DNA Methyltransferase1-Mediated Promoter Hypermethylation

    DOI: 10.3389/fphys.2022.856088

    PMID: 35299661

    Sample: Serum
  4. Frontiers in Neuroscience (2021) IF: 4.677
    Kernelized k-Local Hyperplane Distance Nearest-Neighbor Model for Predicting Cerebrovascular Disease in Patients With End-Stage Renal Disease

    DOI: 10.3389/fnins.2021.773208

    PMID: 34759797

    Sample: serum
  5. CLINICAL AND EXPERIMENTAL RHEUMATOLOGY (2023) IF: 4.862
    Alpha-Klotho protein in systemic lupus erythematosus

    DOI: 10.55563/clinexprheumatol/salqon

    Sample: Serum
  6. KIDNEY & BLOOD PRESSURE RESEARCH (2018) IF: 3
    The Association of Fibroblast Growth Factor 23 with Arterial Stiffness and Atherosclerosis in Patients with Autosomal Dominant Polycystic Kidney Disease

    DOI: 10.1159/000492244

    Sample: serum
  7. MEDICAL ONCOLOGY (2021) IF: 3.064
    Enhancement of Apo2L/TRAIL signaling pathway receptors by the activation of Klotho gene with CRISPR/Cas9 in Caco-2 colon cancer cells

    DOI: 10.1007/s12032-021-01595-7

    Sample: Caco-2 cell
  8. Journal of Medical Biochemistry (2020) IF: 3.402
    Serum Klotho as a marker for early diagnosis of acute kidney injury after cardiac surgery

    DOI: 10.2478/jomb-2019-0024

    Sample: Serum
  9. ARCHIVUM IMMUNOLOGIAE ET THERAPIAE EXPERIMENTALIS (2023) IF: 3.831
    A Comprehensive Study on the Anti-cancer Effects of Quercetin and Its Epigenetic Modifications in Arresting Progression of Colon Cancer Cell Proliferation

    DOI: 10.1007/s00005-023-00669-w

    Sample: L132 cell,HCT 116 cell,COLO 320 cell,COLO 205 cell
  10. JOURNAL OF NEPHROLOGY (2021) IF: 3.902
    Body composition, adipokines, FGF23-Klotho and bone in kidney transplantation: Is there a link?

    DOI: 10.1007/s40620-021-00972-9

    PMID: 33560479

    Sample: Serum
  11. INTERNATIONAL OPHTHALMOLOGY (2021) IF: 2.031
    Evaluation of serum and aqueous humor klotho levels in pseudoexfoliation syndrome, pseudoexfoliation and primary open-angle glaucoma

    DOI: 10.1007/s10792-021-01790-5

    PMID: 33738657

    Sample: serum
  12. NORDIC JOURNAL OF PSYCHIATRY (2019) IF: 2.061
    Klotho, vitamin D and homocysteine levels during acute episode and remission periods in schizophrenia patients

    DOI: 10.1080/08039488.2019.1582697

    PMID: 30896269

    Sample: Serum
  13. Computational and Mathematical Methods in Medicine (2021) IF: 2.238
    A Self-Representation-Based Fuzzy SVM Model for Predicting Vascular Calcification of Hemodialysis Patients

    DOI: 10.1155/2021/2464821

    PMID: 34367315

    Sample: serum
  14. BMC Nephrology (2022) IF: 2.388
    Association of plasma neutrophil gelatinase-associated lipocalin and thoracic aorta calcification in maintenance hemodialysis patients with and without diabetes

    DOI: 10.1186/s12882-022-02773-z

    PMID: 35459121

    Sample: plasma
  15. JOURNAL OF BONE AND MINERAL METABOLISM (2021) IF: 2.626
    Association of plasma neutrophil gelatinase-associated lipocalin with parameters of CKD–MBD in maintenance hemodialysis patients

    DOI: 10.1007/s00774-021-01248-9

    Sample: plasma
  16. PeerJ (2021) IF: 2.984
    The correlation between fibroblast growth factor-23 and ESRD patients with hearing impairment

    DOI: 10.7717/peerj.12295

    PMID: 34721981

    Sample: serum
  17. SCANDINAVIAN JOURNAL OF CLINICAL & LABORATORY INVESTIGATION (2020) IF: 1.475
    Association of serum FGF-23, klotho, fetuin-A, osteopontin, osteoprotegerin and hs-CRP levels with coronary artery disease

    DOI: 10.1080/00365513.2020.1728786

    Sample: serum
  18. Taiwanese Journal of Obstetrics & Gynecology (2021) IF: 1.705
    Comparison of serum human Klotho levels and thiol/disulfide homeostasis in women with polycystic ovary syndrome and in healthy women

    DOI: 10.1016/j.tjog.2021.03.017

    PMID: 33966733

    Sample: Serum
  19. Journal of General and Family Medicine (2023)
    The role of biofield energy treatment on psychological symptoms, mental health disorders, and stress-related quality of life in adult subjects: A randomized controlled clinical trial

    DOI: 10.1002/jgf2.606

    Sample: serum
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Reviews/Q&A

  • Show all
  • Reviews
  • Q&A
Q

C******************dSubmitted [ Sep 26 2018 ]

Asked: The antibody anti-Klotho is against what nucleotides sequence? I need to check if it could be useful in dogs samples...

Reply

A

adminSubmitted [ Sep 26 2018 ]

Answered: Thanks for your question. The immunogen sequence for the detection antibody is human KL 35~75aa and for the detection antibody is human KL 116~174aa. This kit is specific for human samples, not suitable for dog samples.

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