|Detection Range:||0.16-10 ng/mL|
|Sample Volume Required Per Well:||100µL|
|Sample Type:||Serum, plasma and other biological fluids|
|Specificity:||This kit recognizes Human SULT1A1 in samples. No significant cross-reactivity or interference between Human SULT1A1 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 SULT1A1. 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 SULT1A1 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 SULT1A1, 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 SULT1A1. The concentration of Human SULT1A1 in samples can be calculated by comparing the OD of the samples to the standard curve.
|UniProt Protein Function:||SULT1A1: Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfate conjugation of catecholamines, phenolic drugs and neurotransmitters. Has also estrogen sulfotransferase activity. responsible for the sulfonation and activation of minoxidil. Is Mediates the metabolic activation of carcinogenic N- hydroxyarylamines to DNA binding products and could so participate as modulating factor of cancer risk. Belongs to the sulfotransferase 1 family. 2 isoforms of the human protein are produced by alternative splicing.|
|UniProt Protein Details:|
Protein type:EC 2. 8. 2. 1; Energy Metabolism - sulfur; Transferase
Chromosomal Location of Human Ortholog: 16p12. 1
Cellular Component: cytosol
Molecular Function:sulfotransferase activity; steroid sulfotransferase activity; flavonol 3-sulfotransferase activity; aryl sulfotransferase activity
Biological Process: estrogen metabolic process; flavonoid metabolic process; xenobiotic metabolic process; sulfation; catecholamine metabolic process; amine metabolic process; 3'-phosphoadenosine 5'-phosphosulfate metabolic process
|NCBI Summary:||Sulfotransferase enzymes catalyze the sulfate conjugation of many hormones, neurotransmitters, drugs, and xenobiotic compounds. These cytosolic enzymes are different in their tissue distributions and substrate specificities. The gene structure (number and length of exons) is similar among family members. This gene encodes one of two phenol sulfotransferases with thermostable enzyme activity. Multiple alternatively spliced variants that encode two isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]|
|NCBI GenInfo Identifier:||313104286|
|NCBI Gene ID:||6817|
|NCBI Accession:||P50225. 3|
|UniProt Secondary Accession:||P50225,Q2NL71, Q86U58, Q92818, Q9BVU6, Q9UGG7,|
|UniProt Related Accession:||P50225|
|Molecular Weight:||Calculated MW: 25kDa/34kDaObserve MW: 33kDa|
|NCBI Full Name:||Sulfotransferase 1A1|
|NCBI Synonym Full Names:||sulfotransferase family, cytosolic, 1A, phenol-preferring, member 1|
|NCBI Official Symbol:||SULT1A1|
|NCBI Official Synonym Symbols:||PST; STP; STP1; P-PST; ST1A1; ST1A3; TSPST1; HAST1/HAST2|
|NCBI Protein Information:||sulfotransferase 1A1; ts-PST; P-PST 1; aryl sulfotransferase 1; thermostable phenol sulfotransferase1; phenol-sulfating phenol sulfotransferase 1|
|UniProt Protein Name:||Sulfotransferase 1A1|
|UniProt Synonym Protein Names:||Aryl sulfotransferase 1; HAST1/HAST2; Phenol sulfotransferase 1; Phenol-sulfating phenol sulfotransferase 1; P-PST 1; ST1A3; Thermostable phenol sulfotransferase; Ts-PST|
|UniProt Gene Name:||SULT1A1|
|UniProt Entry Name:||ST1A1_HUMAN|
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.
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human SULT1A1 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human SULT1A1 were tested on 3 different plates, 20 replicates in each plate.
|Intra-assay Precision||Inter-assay Precision|
|C V (%)||7.41||4.46||3.20||5.88||4.50||3.94|
The recovery of Human SULT1A1 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
|Sample Type||Range (%)||Average Recovery (%)|
|EDTA plasma (n=5)||84-97||90|
|Cell culture media (n=5)||85-97||92|
Samples were spiked with high concentrations of Human SULT1A1 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)|
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.
|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 100µl of standard solutions into the standard wells.
- Add 100µl of Sample / Standard dilution buffer into the control (zero) well.
- Add 100µl 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 100µL 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 350µL 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 100µL 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 90µL 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.