Propargyl-PEG7-t-butyl ester comprises a propargyl group and a t-butyl protected carboxyl group. The propargyl group reacts with azide compounds via copper catalyzed Click Chemistry to form a stable triazole linkage. Under acidic conditions, the carboxyl group can be deprotected. The hydrophilic PEG units enhance solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG7-t-butyl ester comprises a propargyl group and a t-butyl protected carboxyl group. The propargyl group reacts with azide compounds via copper catalyzed Click Chemistry to form a stable triazole linkage. Under acidic conditions, the carboxyl group can be deprotected. The hydrophilic PEG units enhance solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
These kits concentrate urine proteins while simultaneously removing salts, urea, and other urine contaminants. There is no molecular weight cut-off and therefore the columns capture total urinary proteins and peptides of all sizes making them ideal for biomarker discovery work, differential expression of proteins in various diseases, or other diagnostic research. The columns are convenient, rapid and easy to use and thus offer significant time savings over classic dialysis protocols. The resulting high-quality protein sample is concentrated and free from the original sample salts, thus preparing the sample conveniently for downstream proteomic applications including SDS-PAGE, 2D Gels, MALDI-TOF, LC/MS, LC/MS/MS, whole protein mass spectrometry, western blotting, protein microarrays, and more.
ProteoSpin™ Urine Protein Concentration Micro Kit
Each spin column is able to concentrate and desalt up to 200 μg of urine proteins. Twelve samples can be processed in 20 minutes.
ProteoSpin™ Urine Protein Concentration Midi Kit
The ProteoSpin™ Urine Protein Concentration Midi Kit provides a fast and simple procedure for concentrating dilute solutions of urine proteins from 1 to 5 mL inputs of urine. Each mini spin column is able to concentrate and desalt up to 3 mg of urine proteins in 30 minutes.
ProteoSpin™ Urine Protein Concentration Maxi Kit
The ProteoSpin™ Urine Protein Concentration Maxi Kit provides a fast and simple procedure for concentrating dilute solutions of urine proteins from 2 to 20 mL inputs of urine. Each maxi spin column is able to concentrate and desalt up to 4 mg of urine proteins in 45 minutes.
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| Kit Specifications | |
| Maximum Urine Input Volume | 20 mL |
| Maximum Recovered Protein | 4 mg |
| Minimum Elution Volume | 2 mL |
| Time to Process 4 Samples | 45 minutes |
Storage Conditions
All solutions should be kept tightly sealed and stored at room temperature. Once opened, the solution should be stored at 4°C. This kit is stable for 2 years after the date of shipment.
| Component | Cat. 17400 (25 preps) | Cat. 52300 (10 preps) | Cat. 21600 (4 preps) |
|---|---|---|---|
| Wash Solution C | 60 mL | 60 mL | 130 mL |
| Binding Buffer A | 4 mL | 4 mL | 8 mL |
| Elution Buffer C | 8 mL | 30 mL | 30 mL |
| Protein Neutralizer | 4 mL | 4 mL | 4 mL |
| Micro Spin Columns | 25 | – | – |
| Midi Spin Columns (assembled with collection tubes) | – | 10 | – |
| Maxi Spin Columns (assembled with collection tubes) | – | – | 4 |
| Collection Tubes | 25 | – | – |
| Elution Tubes (1.7 mL) | 25 | – | – |
| Midi Elution Tubes | – | 10 | – |
| Elution Tubes (50 mL) | – | – | 4 |
| Product Insert | 1 | 1 |
Norgen’s RNA purification kits isolate total RNA with minimal amounts of genomic DNA contamination. However, for some sensitive downstream applications, it may be desirable to remove all traces of residual DNA. Norgen’s RNase-free DNAse I Kit, with Enzyme Incubation Buffer, can be used for optional on-column DNase digestion with any of Norgen’s RNA purification kits. Alternatively, after isolating total RNA using one of Norgen’s RNA purification kits, the RNA elution can be treated with this DNase I. The RNA can then be purified from the DNase using Norgen’s RNA Clean-Up and Concentration Kit (Cat# 23600), and the RNA can then be used in downstream applications.
Each RNase-Free DNase I Kit is supplied complete with sufficient enzyme and enzyme incubation buffer for 50 or 200 reactions.
Storage Conditions
The DNase I provided is in lyophilized form. It is stable for at least 3 months if stored at room temperature. However, it is recommended to store the DNase I vial at 2 – 8ºC (or below) upon receipt to maintain stability beyond 3 months. Buffer DR and Enzyme Incubation Buffer can be stored at room temperature. After reconstitution with Buffer DR (see product manual), the DNase I should be stored at -20ºC. All reagents should remain stable for at least 1 year in their unopened containers at the appropriate storage temperature.
| Component | Cat. 25710 (50 rxns) | Cat. 25720 (200 rxns) |
|---|---|---|
| DNase I | 1 vial / 1,600 units | 4 vials (1,600 units/vial) |
| Buffer DR | 1 mL | 4 x 1 mL |
| Enzyme Incubation Buffer | 6 mL | 4 x 6 mL |
| Product Insert | 1 | 1 |
Propargyl-PEG4-amine has a propargyl group and an amine group. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The propargyl group can form triazole linkage with azide-bearing biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG4-amine has a propargyl group and an amine group. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls, etc. The propargyl group can form triazole linkage with azide-bearing biomolecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
