Description
Human CFTR/Cystic fibrosis transmembrane conductance regulator ELISA Kit
The Human CFTR (Cystic Fibrosis Transmembrane Conductance Regulator) ELISA Kit is specifically designed for the accurate measurement of CFTR levels in human samples such as serum, plasma, and cell culture supernatants. This kit offers high sensitivity and specificity, ensuring precise and reliable results for various research applications.CFTR is a crucial protein that regulates chloride ion transport across cell membranes, and mutations in the CFTR gene are associated with cystic fibrosis, a life-threatening genetic disease.
The Human CFTR ELISA Kit allows researchers to quantitatively measure CFTR levels, providing valuable information for understanding the pathogenesis of cystic fibrosis and developing potential therapeutic interventions.Overall, the Human CFTR ELISA Kit is a valuable tool for studying cystic fibrosis and related diseases, offering accurate and consistent results that can drive advancements in research and clinical diagnostics.
| Product Name: | Human CFTR/Cystic fibrosis transmembrane conductance regulator ELISA Kit |
| Product Code: | HUFI02312 |
| Size: | 96 Assays |
| Alias: | CFTR, ABC35, ABCC7CF, ATP-binding cassette sub-family C member 7, ATP-binding cassette transporter sub-family C member 7, cAMP-dependent chloride channel, CFTR, MRP, Channel conductance-controlling ATPase, cystic fibrosis transmembrane conductance regulator, cystic fibrosis transmembrane conductance regulator, ATP-binding cassettesub-family C, member 7, cystic fibrosis transmembrane conductance regulator, ATP-binding cassette, sub-family C, member 7, TNR-CFTR |
| Detection method: | Sandwich ELISA, Double Antibody |
| Application: | This immunoassay kit allows for the in vitro quantitative determination of Human CFTR concentrations in serum plasma and other biological fluids. |
| Sensitivity: | 0.094ng/ml |
| Range: | 0.156-10ng/ml |
| Storage: | 4°C for 6 months |
| Note: | For Research Use Only |
| Recovery: | Matrices listed below were spiked with certain level of Human CFTR and the recovery rates were calculated by comparing the measured value to the expected amount of Human CFTR in samples. | ||||||||||||||||
| |||||||||||||||||
| Linearity: | The linearity of the kit was assayed by testing samples spiked with appropriate concentration of Human CFTR and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected. | ||||||||||||||||
| |||||||||||||||||
| CV(%): | Intra-Assay: CV<8% Inter-Assay: CV<10% |
| Component | Quantity | Storage |
| ELISA Microplate (Dismountable) | 8×12 strips | 4°C for 6 months |
| Lyophilized Standard | 2 | 4°C/-20°C |
| Sample/Standard Dilution Buffer | 20ml | 4°C |
| Biotin-labeled Antibody(Concentrated) | 120ul | 4°C (Protect from light) |
| Antibody Dilution Buffer | 10ml | 4°C |
| HRP-Streptavidin Conjugate(SABC) | 120ul | 4°C (Protect from light) |
| SABC Dilution Buffer | 10ml | 4°C |
| TMB Substrate | 10ml | 4°C (Protect from light) |
| Stop Solution | 10ml | 4°C |
| Wash Buffer(25X) | 30ml | 4°C |
| Plate Sealer | 5 | - |
Other materials and equipment required:
- Microplate reader with 450 nm wavelength filter
- Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
- Incubator
- Deionized or distilled water
- Absorbent paper
- Buffer resevoir
| Uniprot | P13569 |
| UniProt Protein Function: | CFTR: a member of the MRP subfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. Functions as a chloride channel and controls the regulation of other transport pathways. Mutations have been observed in patients with the autosomal recessive disorders cystic fibrosis (CF) and congenital bilateral aplasia of the vas deferens (CBAVD). Alternative splice |
| UniProt Protein Details: | Protein type:Membrane protein, multi-pass; Channel, chloride; Transporter, ABC family; Membrane protein, integral; Transporter; Hydrolase; EC 3.6.3.49 Chromosomal Location of Human Ortholog: 7q31.2 Cellular Component: recycling endosome; cell surface; cytoplasmic vesicle membrane; microvillus; protein complex; early endosome membrane; basolateral plasma membrane; apical plasma membrane; early endosome; cytoplasm; plasma membrane Molecular Function:bicarbonate transmembrane transporter activity; protein binding; chloride channel activity; enzyme binding; chloride channel inhibitor activity; chloride transmembrane transporter activity; channel-conductance-controlling ATPase activity; ATP-binding and phosphorylation-dependent chloride channel activity; ATP binding; PDZ domain binding Biological Process: intracellular pH elevation; response to drug; response to peptide hormone stimulus; cholesterol transport; iodide transport; transepithelial chloride transport; water transport; membrane hyperpolarization; respiratory gaseous exchange; positive regulation of vasodilation; cholesterol biosynthetic process; vasodilation; cellular response to hormone stimulus; response to estrogen stimulus; bicarbonate transport; transport; response to cytokine stimulus; transmembrane transport; sperm capacitation; lung development Disease: Vas Deferens, Congenital Bilateral Aplasia Of; Bronchiectasis With Or Without Elevated Sweat Chloride 1; Cystic Fibrosis; Pancreatitis, Hereditary |
| NCBI Summary: | This gene encodes a member of the ATP-binding cassette (ABC) transporter superfamily. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MRP subfamily that is involved in multi-drug resistance. The encoded protein functions as a chloride channel and controls the regulation of other transport pathways. Mutations in this gene are associated with the autosomal recessive disorders cystic fibrosis and congenital bilateral aplasia of the vas deferens. Alternatively spliced transcript variants have been described, many of which result from mutations in this gene. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P13569 |
| NCBI GenInfo Identifier: | 90421313 |
| NCBI Gene ID: | 1080 |
| NCBI Accession: | NP_000483.3 |
| UniProt Secondary Accession: | P13569,Q20BG8, Q20BH2, Q2I0A1, Q2I102, |
| UniProt Related Accession: | P13569 |
| Molecular Weight: | 69,230 Da |
| NCBI Full Name: | cystic fibrosis transmembrane conductance regulator |
| NCBI Synonym Full Names: | cystic fibrosis transmembrane conductance regulator (ATP-binding cassette sub-family C, member 7) |
| NCBI Official Symbol: | CFTR |
| NCBI Official Synonym Symbols: | CF; MRP7; ABC35; ABCC7; CFTR/MRP; TNR-CFTR; dJ760C5.1 |
| NCBI Protein Information: | cystic fibrosis transmembrane conductance regulator |
| UniProt Protein Name: | Cystic fibrosis transmembrane conductance regulator |
| UniProt Synonym Protein Names: | ATP-binding cassette sub-family C member 7; Channel conductance-controlling ATPase (EC:3.6.3.49); cAMP-dependent chloride channel |
| Protein Family: | Cystic fibrosis transmembrane conductance regulator |
| UniProt Gene Name: | CFTR |
| UniProt Entry Name: | CFTR_HUMAN |
*Note: Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Before adding to wells, equilibrate the SABC working solution and TMB substrate for at least 30 min at 37°C. When diluting samples and reagents, they must be mixed completely and evenly. It is recommended to plot a standard curve for each test.
| Step | Protocol |
| 1. | Set standard, test sample and control (zero) wells on the pre-coated plate respectively, and then, record their positions. It is recommended to measure each standard and sample in duplicate. Wash plate 2 times before adding standard, sample and control (zero) wells! |
| 2. | Aliquot 0.1ml standard solutions into the standard wells. |
| 3. | Add 0.1 ml of Sample / Standard dilution buffer into the control (zero) well. |
| 4. | Add 0.1 ml of properly diluted sample ( Human serum, plasma, tissue homogenates and other biological fluids.) into test sample wells. |
| 5. | Seal the plate with a cover and incubate at 37 °C for 90 min. |
| 6. | Remove the cover and discard the plate content, clap the plate on the absorbent filter papers or other absorbent material. Do NOT let the wells completely dry at any time. Wash plate X2. |
| 7. | Add 0.1 ml of Biotin- detection antibody working solution into the above wells (standard, test sample & zero wells). Add the solution at the bottom of each well without touching the side wall. |
| 8. | Seal the plate with a cover and incubate at 37°C for 60 min. |
| 9. | Remove the cover, and wash plate 3 times with Wash buffer. Let wash buffer rest in wells for 1 min between each wash. |
| 10. | Add 0.1 ml of SABC working solution into each well, cover the plate and incubate at 37°C for 30 min. |
| 11. | Remove the cover and wash plate 5 times with Wash buffer, and each time let the wash buffer stay in the wells for 1-2 min. |
| 12. | Add 90 µl of TMB substrate into each well, cover the plate and incubate at 37°C in dark within 10-20 min. (Note: This incubation time is for reference use only, the optimal time should be determined by end user.) And the shades of blue can be seen in the first 3-4 wells (with most concentrated standard solutions), the other wells show no obvious color. |
| 13. | Add 50 µl of Stop solution into each well and mix thoroughly. The color changes into yellow immediately. |
| 14. | Read the O.D. absorbance at 450 nm in a microplate reader immediately after adding the stop solution. |
When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.
| Sample Type | Protocol |
| Serum | If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. |
| Plasma | Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit. |
| Urine & Cerebrospinal Fluid | Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid. |
| Cell culture supernatant | Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately. |
| Cell lysates | Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Tissue homogenates | The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C. |
| Tissue lysates | Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Breast Milk | Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles. |
