Description
Human CLDN11 (Claudin 11) ELISA Kit
The Human CLDN11 (Claudin-11) ELISA Kit is specifically designed for the accurate quantification of CLDN11 levels in human serum, plasma, and cell culture supernatants. This kit provides a high level of sensitivity and specificity, ensuring precise and reliable results for a variety of research applications.Claudin-11 is a key protein in the formation of tight junctions in the central nervous system and other tissues. Dysregulation of CLDN11 has been linked to various neurological disorders, including multiple sclerosis and schizophrenia, making it an important biomarker for studying these conditions and developing potential therapies.
Overall, the Human CLDN11 ELISA Kit is a valuable tool for researchers looking to explore the role of Claudin-11 in health and disease, providing a robust platform for accurate and reproducible measurements of CLDN11 levels in biological samples.
| Assay type: | Sandwich |
| Format: | 96T |
| Assay time: | 4.5h |
| Reactivity: | Human |
| Detection Method: | Colormetric |
| Detection Range: | 0.16-10 ng/mL |
| Sensitivity: | 0.10 ng/mL |
| Sample Volume Required Per Well: | 100µL |
| Sample Type: | Serum, plasma and other biological fluids |
| Specificity: | This kit recognizes Human CLDN11 in samples. No significant cross-reactivity or interference between Human CLDN11 and analogues was observed. |
This ELISA kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human CLDN11. Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human CLDN11 and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human CLDN11, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by adding 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 CLDN11. The concentration of Human CLDN11 in samples can be calculated by comparing the OD of the samples to the standard curve.
| UniProt Protein Function: | Claudin-11: Plays a major role in tight junction-specific obliteration of the intercellular space, through calcium- independent cell-adhesion activity. Belongs to the claudin family. |
| UniProt Protein Details: | Protein type:Cell adhesion; Membrane protein, integral; Membrane protein, multi-pass Chromosomal Location of Human Ortholog: 3q26. 2 Cellular Component: plasma membrane; tight junction Molecular Function:identical protein binding; protein binding Biological Process: calcium-independent cell-cell adhesion |
| NCBI Summary: | This gene encodes a member of the claudin family. Claudins are integral membrane proteins and components of tight junction strands. Tight junction strands serve as a physical barrier to prevent solutes and water from passing freely through the paracellular space between epithelial or endothelial cell sheets, and also play critical roles in maintaining cell polarity and signal transductions. The protein encoded by this gene is a major component of central nervous system (CNS) myelin and plays an important role in regulating proliferation and migration of oligodendrocytes. Mouse studies showed that the gene deficiency results in deafness and loss of the Sertoli cell epithelial phenotype in the testis. This protein is a tight junction protein at the human blood-testis barrier (BTB), and the BTB disruption is related to a dysfunction of this gene. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2010] |
| UniProt Code: | O75508 |
| NCBI GenInfo Identifier: | 6685300 |
| NCBI Gene ID: | 5010 |
| NCBI Accession: | O75508. 2 |
| UniProt Secondary Accession: | O75508,Q5U0P3, B2R7C1, D3DNQ5, |
| UniProt Related Accession: | O75508 |
| Molecular Weight: | 22kDa |
| NCBI Full Name: | Claudin-11 |
| NCBI Synonym Full Names: | claudin 11 |
| NCBI Official Symbol: | CLDN11 |
| NCBI Official Synonym Symbols: | OSP; OTM |
| NCBI Protein Information: | claudin-11 |
| UniProt Protein Name: | Claudin-11 |
| UniProt Synonym Protein Names: | Oligodendrocyte-specific protein |
| Protein Family: | Claudin |
| UniProt Gene Name: | CLDN11 |
As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e. g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.
| Concentration (ng/mL) | O.D | Average | Corrected |
| 10 | 2.474 2.49 | 2.482 | 2.412 |
| 5 | 1.577 1.631 | 1.604 | 1.534 |
| 2.5 | 1.003 0.971 | 0.987 | 0.917 |
| 1.25 | 0.432 0.454 | 0.443 | 0.373 |
| 0.63 | 0.26 0.238 | 0.249 | 0.179 |
| 0.32 | 0.178 0.172 | 0.175 | 0.105 |
| 0.16 | 0.122 0.126 | 0.124 | 0.054 |
| 0 | 0.067 0.073 | 0.07 | -- |
Precision
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human CLDN11 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human CLDN11 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) | 0.46 | 1.31 | 3.75 | 0.49 | 1.38 | 3.48 |
| Standard deviation | 0.03 | 0.07 | 0.15 | 0.03 | 0.08 | 0.11 |
| C V (%) | 6.52 | 5.34 | 4.00 | 6.12 | 5.80 | 3.16 |
Recovery
The recovery of Human CLDN11 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=5) | 93-111 | 101 |
| EDTA plasma (n=5) | 89-99 | 94 |
| Cell culture media (n=5) | 93-107 | 99 |
Linearity
Samples were spiked with high concentrations of Human CLDN11 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
| 1:2 | Range (%) | 95-110 | 95-108 | 90-103 |
| Average (%) | 102 | 101 | 97 | |
| 1:4 | Range (%) | 87-98 | 85-100 | 80-94 |
| Average (%) | 93 | 92 | 87 | |
| 1:8 | Range (%) | 90-106 | 83-97 | 88-102 |
| Average (%) | 97 | 90 | 94 | |
| 1:16 | Range (%) | 87-101 | 80-96 | 83-95 |
| Average (%) | 94 | 87 | 90 |
An unopened kit can be stored at 4°C for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.
| Item | Specifications | Storage |
| Micro ELISA Plate(Dismountable) | 8 wells ×12 strips | -20°C, 6 months |
| Reference Standard | 2 vials | |
| Concentrated Biotinylated Detection Ab (100×) | 1 vial, 120 µL | |
| Concentrated HRP Conjugate (100×) | 1 vial, 120 µL | -20°C(shading light), 6 months |
| Reference Standard & Sample Diluent | 1 vial, 20 mL | 4°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 | 4°C(shading light) |
| Stop Solution | 1 vial, 10 mL | 4°C |
| Plate Sealer | 5 pieces | |
| Product Description | 1 copy | |
| Certificate of Analysis | 1 copy |
- Set standard, test sample and control (zero) wells on the pre-coated plate and record theirpositions. It is recommended to measure each standard and sample in duplicate. Note: addall solutions to the bottom of the plate wells while avoiding contact with the well walls. Ensuresolutions do not foam when adding to the wells.
- Aliquot 100 µL of standard solutions into the standard wells.
- Add 100 µL of Sample / Standard dilution buffer into the control (zero) well.
- Add 100 µL of properly diluted sample (serum, plasma, tissue homogenates and otherbiological fluids) into test sample wells.
- Cover the plate with the sealer provided in the kit and incubate for 90 min at 37 °C.
- Aspirate the liquid from each well, do not wash. Immediately add 100 µL of BiotinylatedDetection Ab working solution to each well. Cover the plate with a plate seal and gently mix. Incubate for 1 hour at 37 °C.
- Aspirate or decant the solution from the plate and add 350 µL of wash buffer to each welland incubate for 1-2 minutes at room temperature. Aspirate the solution from each well andclap the plate on absorbent filter paper to dry. Repeat this process 3 times. Note: a microplatewasher can be used in this step and other wash steps.
- Add 100 µL of HRP Conjugate working solution to each well. Cover with a plate seal andincubate for 30 min at 37 °C.
- Aspirate or decant the solution from each well. Repeat the wash process for five times asconducted in step 7.
- Add 90 µL of Substrate Reagent to each well. Cover with a new plate seal and incubate forapproximately 15 min at 37 °C. Protect the plate from light. Note: the reaction time can beshortened or extended according to the actual color change, but not by more than 30min.
- Add 50 µL of Stop Solution to each well. Note: Adding the stop solution should be done inthe same order as the substrate solution.
- Determine the optical density (OD value) of each well immediately with a microplate readerset at 450 nm.
