| Description | This kit innovatively adopts a column-based purification method to rapidly, gently, and efficiently lyse animal tissues or cells for total protein extraction. It provides both denaturing and native lysis buffers, allowing users to select the appropriate option based on downstream application This kit innovatively adopts a column-based purification method to rapidly, gently, and efficiently lyse animal tissues or cells for total protein extraction. It provides both denaturing and native lysis buffers, allowing users to select the appropriate option based on downstream application requirements. The entire extraction process takes only 1–8 minutes. Thanks to the column purification technology, it can process sample-lysis buffer mixtures as small as 20 µL and up to 500 µL, yielding protein solutions with concentrations of 2–8 mg/mL while effectively preventing protein loss. The extracted proteins can be quantified using the BCA method (Cat. No.: R1491648/B665595).C1491674Component50TStorageC1491674ADenaturing Lysis Buffer25 mL2-8℃C1491674BNative Lysis Buffer25 mL2-8℃C1491674CPurification Columns50 unitsRT.C1491674DCollection Tubes50 unitsRT.C1491674EPlastic Grinding Pestles4 unitsRT.Key Features1.Simple and rapid operation: Denatured total proteins can be obtained in as little as 1 minute.2.No protein loss: Efficiently extracts DNA-binding proteins by disrupting DNA duplexes.3.Small sample volume, high yield: Processes mixtures as small as 20 µL, yielding protein concentrations of 2–8 mg/mL.4.Versatile applications: Includes two lysis buffers for extracting both denatured and native proteins.ProtocolI. Extraction of Denatured Total Protein1.Pre-chill the purification column and collection tube on ice.2.Sample processing: Add protease inhibitor cocktail to the denaturing lysis buffer at a 1:100 ratio shortly before use.2.1 Adherent cells:Wash cells with pre-chilled 1× PBS and aspirate the supernatant.Add the volume of denaturing lysis buffer specified in the appendix table to cover the culture surface, and pipette to mix.2.2 Suspension cells:Collect cells by low-speed centrifugation.Wash with pre-chilled 1× PBS, vortex, and centrifuge at 3,000 rpm for 2–3 minutes.Resuspend the cell pellet in PBS equal to the pellet volume.Add the specified volume of denaturing lysis buffer and vortex to lyse.Note: Partial incomplete lysis does not affect protein extraction. If the lysate is too viscous, directly transfer it to the purification column.2.3 Tissue samples:Place 15–20 mg of tissue on the purification column.Grind 50–60 times with a plastic pestle.Add 200 µL denaturing lysis buffer and grind another 30–60 times.Adjust lysis buffer volume proportionally for larger or smaller samples.Note: Reusable plastic pestles should be thoroughly rinsed with distilled water and dried.3.Centrifugation:3.1 Adherent or suspension cells: Transfer the lysate to the pre-chilled purification column and centrifuge at 14,000–16,000 rpm for 30 seconds.3.2 Tissue samples: Incubate the column at room temperature for 1–2 minutes, then centrifuge at 14,000–16,000 rpm for 1–2 minutes.4.Immediately place the collection tube on ice and discard the purification column. Denatured total protein extraction is complete.II. Extraction of Native Total Protein1.Pre-chill the native lysis buffer, purification column, and collection tube on ice.2.Sample processing: Add protease inhibitor cocktail to the native lysis buffer at a 1:100 ratio shortly before use.2.1 Adherent cells:Wash cells with pre-chilled 1× PBS and aspirate the supernatant.Add the specified volume of native lysis buffer and incubate on ice for 3–5 minutes. Pipette to mix.2.2 Suspension cells:Collect, wash, and resuspend cells as described in section I.Add native lysis buffer, vortex for 15 seconds, incubate on ice for 3–5 minutes, and vortex again for 10 seconds.2.3 Tissue samples:Grind tissue as described in section I, using native lysis buffer.3.Centrifugation:3.1 Adherent or suspension cells: Centrifuge at 14,000–16,000 rpm for 30 seconds.3.2 Tissue samples: Incubate on ice for 5 minutes (open lid), then close the lid and centrifuge at 4°C and 14,000–16,000 rpm for 1–2 minutes.4.Immediately place the collection tube on ice and discard the purification column. Native total protein extraction is complete.Cell Count (×10⁶)Lysis Buffer Volume (µL)0.3200.550110022003500 Appendix: Cell Number vs. Lysis Buffer VolumePrecautions1.High viscosity of the lysate is normal when using this kit.2.For safety, wear a lab coat and disposable gloves during operation.3.For research use only... Read More | Description：Acetylcholinesterases (AChEs) are enzymes that hydrolyze the neurotransmitter acetylcholine (ACh) to acetate and choline. AChE is located at the synaptic cleft and functions to terminate synaptic transmission by catalyzing the breakdown of ACh allowing cholinergic neurons to Description：Acetylcholinesterases (AChEs) are enzymes that hydrolyze the neurotransmitter acetylcholine (ACh) to acetate and choline. AChE is located at the synaptic cleft and functions to terminate synaptic transmission by catalyzing the breakdown of ACh allowing cholinergic neurons to return to a resting state after activation. It is also found in membranes of red blood cells, motor and sensory fibers, muscles, nerves and central and peripheral tissues. Changes in AChE activity may result from exposure to certain insecticides, which act as cholinesterase inhibitors. Inhibitors of AChE are also used to treat certain conditions such as dementia.Acetylcholinesterase activity assay kit has been used to determine the activity of acetylcholinesterase in a rat organophosphate model and in brain tissue homogenates.Principle：Acetylcholinesterase can catalyze the hydrolysis of acetylcholine to choline, and the reaction of choline with disulfide p-nitrobenzoic acid to produce 5-merhydryl-nitrobenzoic acid (TNB). The product has a characteristic absorption peak at 412 nm, and the activity of acetylcholinesterase can be characterized by the change of light absorption valueThe Dilution Calculator EquationConcentration (start)xVolume (start)= Concentration (final)× Volume (final)This equation is commonly abbreviated as: C1V1 = C2V2... Read More | The content of this cell is too long for an XLSX file (more than 32767 characters). Please use the CSV format for this export | O665690 Component 50T Storage O665690A DNase I 1000 U -20℃.Avoid freeze/thaw cycle. O665690B 10×Reaction Buffer 1000 µL -20℃.Avoid freeze/thaw cycle. O665690C Buffer RLS 40 mL RT O665690D Buffer RW1 40 mL RT O665690E Buffer RW2 (concentrate) 11 mL RT O665690F RNase-Free Water O665690 Component 50T Storage O665690A DNase I 1000 U -20℃.Avoid freeze/thaw cycle. O665690B 10×Reaction Buffer 1000 µL -20℃.Avoid freeze/thaw cycle. O665690C Buffer RLS 40 mL RT O665690D Buffer RW1 40 mL RT O665690E Buffer RW2 (concentrate) 11 mL RT O665690F RNase-Free Water 10 mL RT O665690G Spin Columns FS with Collection Tubes 50 EA RT O665690H Spin Columns RM with Collection Tubes 50 EA RT O665690I RNase-Free Centrifuge Tubes (1.5 mL) 50 EA RTProduct IntroductionThis kit is suitable for extracting RNA from a wide range of plants, even from plants rich in polysaccharides and polyphenols, high quality RNA can be successfully extracted, such as rice leaves, wheat leaves, corn leaves, tobacco leaves, pine needles, ginkgo leaves, poplar leaves, pomegranate leaves, holly leaves, apples, peaches, pears, tomatoes, cherries, apricots, bananas, grapes, loquats, cinnamon rinds, cinnamon pulp, lychee fruit rinds, lychee pulp, soybean, peanut, corn, potato tuber, moonflower petal, pomegranate petal, shiitake mushroom, flat mushroom and other samples. The unique lysate formula can rapidly inactivate the RNA enzyme in the cell, effectively remove the effect of polysaccharide and polyphenol on RNA extraction, without the need for phenol, chloroform and other reagents, while using silicon matrix membrane adsorption of RNA for purification, the total RNA extracted is highly pure, without the contamination of genomes, proteins and other impurities, and can be used for Real Time RT-PCR, RT-PCR, It can be used for Real Time RT-PCR, RT-PCR, Northern Blot, Dot Blot, in vitro translation and other downstream experiments.RNA yieldSelf-contained reagents: β-mercaptoethanol, anhydrous ethanol (freshly opened or for RNA extraction)Pre-experiment Preparation and Important Notes1. To prevent RNase contamination, attention should be paid to the following aspects:1) Use RNase-free plastics and tips.(2) Operators wear disposable masks and gloves, and change gloves diligently during the experiment.2. Avoid repeated freezing and thawing of the extracted samples, otherwise it will affect the rate and quality of RNA extraction.3. If Buffer RLS produces a precipitate, heat to dissolve it and leave at room temperature.4. Please add β-mercaptoethanol to Buffer RLS before use, add 20µl β-mercaptoethanol to 1ml Buffer RLS. Buffer RLS with β-mercaptoethanol can be stored for 1 month at room temperature.5. Anhydrous ethanol should be added according to the instructions on the reagent bottle label before using Buffer RW2 for the first time. Operation steps1. Homogenization: Take 50-100mg of plant tissue and quickly grind it into powder in liquid nitrogen, add 500µl of Buffer RLS (please check whether β-mercaptoethanol is added before use), and immediately mix it by vortexing with vigorous shaking.Note: For materials that are extremely rich in water content, such as watermelon pulp, tomato, pear pulp, etc., more material can be added appropriately, up to 200 mg; for starch-rich samples or mature leaves, the amount of Buffer RLS can be increased appropriately, up to 700 µl.2. Centrifuge at 12,000 rpm (~13,400 x g) for 2 min at 4°C.3. Transfer the supernatant into the filter columns (Spin Columns FS) that have been loaded into the collection tubes, centrifuge at 12,000 rpm at 4°C for 1 minute, carefully aspirate the supernatant in the collection tubes and transfer it to new RNase-Free centrifugation tubes (self-provided), avoiding the tip of the gun from touching the cell debris precipitation in the collection tubes as much as possible.4. Slowly add 0.5 times the volume of the supernatant in anhydrous ethanol, mix well (a precipitate may appear), and transfer the resulting solution together with the precipitate to a Spin Columns RM in a collection tube, or in two batches if you cannot add all of the solution at once. centrifuge the column for 1 minute at 12,000 rpm at 4°C. Dispose of the spent solution and place the column back into the collection tube. Centrifuge at 12,000 rpm for 1 minute at 4°C, discard the spent solution and return the column to the collection tube.5. Add 350 µl of Buffer RW1 to the adsorbent column RM, centrifuge at 12,000 rpm at 4°C for 1 min, discard the waste solution and put the adsorbent column back into the collection tube.6. Preparation of DNase I mixture: Take 52µl of RNase-Free Water, add 8µl of 10×Reaction Buffer and 20µl of DNase I (1U/µl) to it, mix well, and prepare a final volume of 80µl of reaction solution.7. Add 80µl of DNase I mixture directly to the adsorption column and incubate at 20-30°C for 15 minutes.8. Add 350 µl of Buffer RW1 to the adsorbent column RM, centrifuge at 12,000 rpm at 4°C for 1 min, discard the waste solution and put the adsorbent column back into the collection tube.9. Add 500 µl of Buffer RW2 to the adsorbent column RM (check that anhydrous ethanol is added before use), centrifuge at 12,000 rpm for 1 minute at 4°C, discard the waste solution and put the adsorbent column back into the collection tube.10. Repeat step 9.11. Centrifuge at 12,000 rpm for 2 minutes at 4°C.Note: The purpose of this step is to remove residual ethanol from the adsorption column; ethanol residue can interfere with subsequent enzymatic reactions (zymography, PCR, etc.).12. Load the adsorption column RM into new RNase-Free Centrifuge Tubes (1.5 ml), add 30-50 µl of RNase-Free Water dropwise to the middle part of the adsorption membrane overhang, leave it at room temperature for 2 min, and centrifuge at 12,000 rpm at 4°C for 1 min, and store the resulting RNA solution at -70°C to prevent degradation.Note: 1) The volume of RNase-Free Water should not be less than 30 µl, too small volume affects the recovery rate.2) If you want to increase the RNA yield, repeat step 12 with 30-50 µl of fresh RNase-Free Water.3) If the RNA concentration is to be increased, the resulting solution can be reintroduced into the adsorption column and step 12 repeated... Read More | RAFT Agent Kit for controlling polymerizations at the molecular level detailed list of products: Catalog Number Product Name Component Catalog Number Component Name Component CAS Specification&Purity R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C139356-500mg 4-RAFT Agent Kit for controlling polymerizations at the molecular level detailed list of products: Catalog Number Product Name Component Catalog Number Component Name Component CAS Specification&Purity R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C139356-500mg 4-Cyano-4-(dodecylsulfanylthiocarbonyl)sulfanylpentanoic acid 870196-80-8 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C396701-500mg Cyanomethyl dodecyl trithiocarbonate 796045-97-1 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C396703-500mg Cyanomethyl methyl(phenyl)carbamodithioate 76926-16-4 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C168358-500mg 2-Cyano-2-propyl benzodithioate 201611-85-0 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C396706-500mg 2-(2-Cyanoprop-2-yl)-S-dodecyltrithiocarbonate 870196-83-1 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level C132316-500mg 4-Cyano-4-(phenylcarbonothioylthio)pentanoic Acid 201611-92-9 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level S396708-500mg S,S-Dibenzyl trithiocarbonate 26504-29-0 See Component Catalog Number R396714 RAFT Agent Kit for controlling polymerizations at the molecular level D396711-500mg 2-(Dodecylthiocarbonothioylthio)-2-methylpropionic acid 461642-78-4 See Component Catalog Number... 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