Description
Human Cholesterol side-chain cleavage enzyme, mitochondrial (CYP11A1) ELISA Kit
The Human Cholesterol Side-Chain Cleavage Enzyme Mitochondrial CYP11A1 ELISA Kit is a specialized assay designed for the accurate quantification of CYP11A1 levels in human samples. This kit offers high sensitivity and specificity, providing reliable and reproducible results for a variety of research applications.CYP11A1, also known as cholesterol side-chain cleavage enzyme, plays a key role in the biosynthesis of steroid hormones, including cortisol, aldosterone, and sex hormones. Dysregulation of CYP11A1 has been linked to various endocrine disorders, making it a valuable biomarker for studying hormone-related diseases and exploring potential therapeutic targets.
With this ELISA kit, researchers can easily measure CYP11A1 levels in serum, plasma, and cell culture supernatants, enabling in-depth analysis of steroid hormone biosynthesis pathways and their implications in health and disease. Whether investigating adrenal disorders, reproductive abnormalities, or metabolic conditions, the Human Cholesterol Side-Chain Cleavage Enzyme Mitochondrial CYP11A1 ELISA Kit is an invaluable tool for advancing scientific understanding and clinical research.
| Product Name: | Human Cholesterol side-chain cleavage enzyme, mitochondrial (CYP11A1) ELISA Kit |
| SKU: | HUEB0926 |
| Size: | 96T |
| Target: | Human Cholesterol side-chain cleavage enzyme, mitochondrial (CYP11A1) |
| Synonyms: | CYPXIA1, Cholesterol desmolase, Cytochrome P450 11A1, Cytochrome P450(scc), CYP11A |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Human |
| Detection Range: | 0.312-20ng/mL |
| Sensitivity: | 0.1ng/mL |
| Intra CV: | 5.3% | ||||||||||||||||||||
| Inter CV: | 9.6% | ||||||||||||||||||||
| Linearity: |
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| Recovery: |
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| Function: | Catalyzes the side-chain cleavage reaction of cholesterol to pregnenolone. |
| Uniprot: | P05108 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant human Cholesterol side-chain cleavage enzyme, mitochondrial |
| Sub Unit: | Interacts with FDX1/adrenodoxin. |
| Research Area: | Cardiovascular |
| Subcellular Location: | Mitochondrion membrane |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | CYP11A1: Catalyzes the side-chain cleavage reaction of cholesterol to pregnenolone. Defects in CYP11A1 are the cause of adrenal insufficiency congenital with 46,XY sex reversal (AICSR). A rare disorder that can present as acute adrenal insufficiency in infancy or childhood. ACTH and plasma renin activity are elevated and adrenal steroids are inappropriately low or absent; the 46,XY patients have female external genitalia, sometimes with clitoromegaly. The phenotypic spectrum ranges from prematurity, complete underandrogenization, and severe early-onset adrenal failure to term birth with clitoromegaly and later-onset adrenal failure. Patients with congenital adrenal insufficiency do not manifest the massive adrenal enlargement typical of congenital lipoid adrenal hyperplasia. Belongs to the cytochrome P450 family. |
| UniProt Protein Details: | Protein type:Mitochondrial; Lipid Metabolism - C21-steroid hormone; Oxidoreductase; EC 1.14.15.6 Chromosomal Location of Human Ortholog: 15q23-q24 Cellular Component: mitochondrial crista; mitochondrion; mitochondrial matrix; perikaryon Molecular Function:cholesterol monooxygenase (side-chain-cleaving) activity; iron ion binding; cholesterol binding; heme binding Biological Process: response to alkaloid; steroid metabolic process; maternal process involved in pregnancy; dibenzo-p-dioxin metabolic process; response to insecticide; estrogen biosynthetic process; response to L-ascorbic acid; response to salt stress; response to vitamin E; Leydig cell differentiation; biphenyl metabolic process; response to gamma radiation; cerebellum development; response to corticosterone stimulus; response to drug; cholesterol metabolic process; progesterone biosynthetic process; fractalkine metabolic process; phthalate metabolic process; hippocampus development; mating behavior; vitamin D metabolic process; Schwann cell differentiation; response to genistein; response to hydrogen peroxide; xenobiotic metabolic process; C21-steroid hormone biosynthetic process; sterol metabolic process; granulosa cell differentiation; phenol metabolic process Disease: Adrenal Insufficiency, Congenital, With 46,xy Sex Reversal, Partial Or Complete |
| NCBI Summary: | This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This protein localizes to the mitochondrial inner membrane and catalyzes the conversion of cholesterol to pregnenolone, the first and rate-limiting step in the synthesis of the steroid hormones. Two transcript variants encoding different isoforms have been found for this gene. The cellular location of the smaller isoform is unclear since it lacks the mitochondrial-targeting transit peptide. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P05108 |
| NCBI GenInfo Identifier: | 143811381 |
| NCBI Gene ID: | 1583 |
| NCBI Accession: | P05108.2 |
| UniProt Secondary Accession: | P05108,Q15081, Q16805, Q8N1A7, A8K8D5, B3KPU8, G3XAD7 |
| UniProt Related Accession: | P05108 |
| Molecular Weight: | 521 |
| NCBI Full Name: | Cholesterol side-chain cleavage enzyme, mitochondrial |
| NCBI Synonym Full Names: | cytochrome P450, family 11, subfamily A, polypeptide 1 |
| NCBI Official Symbol: | CYP11A1 |
| NCBI Official Synonym Symbols: | CYP11A; CYPXIA1; P450SCC |
| NCBI Protein Information: | cholesterol side-chain cleavage enzyme, mitochondrial; steroid 20-22-lyase; cytochrome P450 11A1; cytochrome P450(scc); cytochrome P450C11A1; cholesterol 20-22 desmolase; cholesterol monooxygenase (side-chain cleaving); cytochrome P450, subfamily XIA (cholesterol side chain cleavage) |
| UniProt Protein Name: | Cholesterol side-chain cleavage enzyme, mitochondrial |
| UniProt Synonym Protein Names: | CYPXIA1; Cholesterol desmolase; Cytochrome P450 11A1; Cytochrome P450(scc) |
| Protein Family: | Cholesterol side-chain cleavage enzyme |
| UniProt Gene Name: | CYP11A1 |
| UniProt Entry Name: | CP11A_HUMAN |
| Component | Quantity (96 Assays) | Storage |
| ELISA Microplate (Dismountable) | 8×12 strips | -20°C |
| Lyophilized Standard | 2 | -20°C |
| Sample Diluent | 20ml | -20°C |
| Assay Diluent A | 10mL | -20°C |
| Assay Diluent B | 10mL | -20°C |
| Detection Reagent A | 120µL | -20°C |
| Detection Reagent B | 120µL | -20°C |
| Wash Buffer | 30mL | 4°C |
| Substrate | 10mL | 4°C |
| Stop Solution | 10mL | 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
*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.
| Step | |
| 1. | Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C. |
| 2. | Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform. |
| 3. | Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper. |
| 4. | Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C. |
| 5. | Repeat the wash process for five times as conducted in step 3. |
| 6. | Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction. |
| 7. | Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing. |
| 8. | Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters. |
| 9. | After experiment, store all reagents according to the specified storage temperature respectively until their expiry. |
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. |
