Description
Human Serotonin N-acetyltransferase (AANAT) ELISA Kit
The Human Serotonin N-Acetyltransferase (AANAT) ELISA Kit is a powerful tool for detecting levels of AANAT in human samples. With high sensitivity and specificity, this kit provides accurate and reproducible results for research applications.AANAT is an important enzyme involved in the regulation of serotonin levels in the body, playing a key role in the sleep-wake cycle and mood regulation. Dysregulation of AANAT has been linked to various neurological disorders, making it a valuable biomarker for studying these conditions and developing potential treatments.
By utilizing the Human Serotonin N-Acetyltransferase (AANAT) ELISA Kit, researchers can gain valuable insights into the role of AANAT in various physiological and pathological processes, advancing our understanding of serotonin metabolism and its implications in health and disease.
| Product Name: | Human Serotonin N-acetyltransferase (AANAT) ELISA Kit |
| SKU: | HUEB2049 |
| Size: | 96T |
| Target: | Human Serotonin N-acetyltransferase (AANAT) |
| Synonyms: | Aralkylamine N-acetyltransferase, AA-NAT, Serotonin acetylase, SNAT |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Human |
| Detection Range: | 0.78-50ng/mL |
| Sensitivity: | 0.39ng/ml |
| Intra CV: | 4.7% | ||||||||||||||||||||
| Inter CV: | 8.4% | ||||||||||||||||||||
| Linearity: |
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| Recovery: |
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| Function: | Controls the night/day rhythm of melatonin production in the pineal gland. Catalyzes the N-acetylation of serotonin into N-acetylserotonin, the penultimate step in the synthesis of melatonin. |
| Uniprot: | Q16613 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant human Serotonin N-acetyltransferase |
| Sub Unit: | Monomer (By similarity). Interacts with several 14-3-3 proteins, including YWHAB, YWHAE, YWHAG and YWHAZ, preferentially when phosphorylated at Thr-31. Phosphorylation on Ser-205 also allows binding to YWHAZ, but with lower affinity. The interaction with YWHAZ considerably increases affinity for arylalkylamines and acetyl-CoA and protects the enzyme from dephosphorylation and proteasomal degradation (By similarity). It may also prevent thiol-dependent inactivation. |
| Research Area: | Neurosciences |
| Subcellular Location: | Cytoplasm |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | AA-NAT var1: Catalyzes the N-acetylation of serotonin into N- acetylserotonin. Controls the night/day rhythm of melatonin production in the pineal gland. Has a relative affinity for hydroxylated versus non-hydroxylated arylalkylamines. Belongs to the acetyltransferase family. AANAT subfamily. Monomer. Interacts with YWHAZ; the interaction requires phosphorylation on Thr-31, and modulates the enzymatic activity of AANAT through preventing dephosphorylation and/or proteolysis and stabilizing substrate binding. Subsequently, a second molecule of AANAT can bind, via the phosphorylated Ser-205 site, the other YWHAZ monomer with similar effect. |
| UniProt Protein Details: | Protein type:Acetyltransferase; EC 2.3.1.87; Amino Acid Metabolism - tryptophan Chromosomal Location of Human Ortholog: 17q25.1 Cellular Component: perinuclear region of cytoplasm; cytosol Molecular Function:arylamine N-acetyltransferase activity; aralkylamine N-acetyltransferase activity Biological Process: circadian rhythm; N-terminal protein amino acid acetylation; response to light stimulus; melatonin biosynthetic process; response to copper ion; response to zinc ion; indolalkylamine biosynthetic process; response to cytokine stimulus; response to calcium ion; response to corticosterone stimulus; response to insulin stimulus Disease: Delayed Sleep Phase Syndrome, Susceptibility To |
| NCBI Summary: | The protein encoded by this gene belongs to the acetyltransferase superfamily. It is the penultimate enzyme in melatonin synthesis and controls the night/day rhythm in melatonin production in the vertebrate pineal gland. Melatonin is essential for the function of the circadian clock that influences activity and sleep. This enzyme is regulated by cAMP-dependent phosphorylation that promotes its interaction with 14-3-3 proteins and thus protects the enzyme against proteasomal degradation. This gene may contribute to numerous genetic diseases such as delayed sleep phase syndrome. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009] |
| UniProt Code: | Q16613 |
| NCBI GenInfo Identifier: | 11387096 |
| NCBI Gene ID: | 15 |
| NCBI Accession: | Q16613.1 |
| UniProt Secondary Accession: | Q16613,Q562F4, A0AVF2, J3KMZ5, |
| UniProt Related Accession: | Q16613 |
| Molecular Weight: | 28,432 Da |
| NCBI Full Name: | Serotonin N-acetyltransferase |
| NCBI Synonym Full Names: | aralkylamine N-acetyltransferase |
| NCBI Official Symbol: | AANAT |
| NCBI Official Synonym Symbols: | DSPS; SNAT |
| NCBI Protein Information: | serotonin N-acetyltransferase; serotonin acetylase; arylalkylamine N-acetyltransferase |
| UniProt Protein Name: | Serotonin N-acetyltransferase |
| UniProt Synonym Protein Names: | Aralkylamine N-acetyltransferase; AA-NAT |
| Protein Family: | Serotonin N-acetyltransferase |
| UniProt Gene Name: | AANAT |
| UniProt Entry Name: | SNAT_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. |
