Biotin-PEG4-alkyne is a PEG linker containing a biotin group and a terminal alkyne. Biotin is useful for affinity-based applications such as pull-down assays or for ligating with streptavidin proteins while terminal alkynes are used in copper (I) click chemistry with azides to form stable triazoles with a target molecule. The inclusion of a PEG linker in this molecule improves its aqueous solubility.
Detail
Biotin-PEG4-alkyne is a PEG linker containing a biotin group and a terminal alkyne. Biotin is useful for affinity-based applications such as pull-down assays or for ligating with streptavidin proteins while terminal alkynes are used in copper (I) click chemistry with azides to form stable triazoles with a target molecule. The inclusion of a PEG linker in this molecule improves its aqueous solubility.
Other Products
48 Tests / Box Isothermal DNA Amplification Kit With Reagents Buffers Enzymes
Storage term: stored at ≤-20℃,keep away from light, avoid heavy weight and repeated freezing and thawing.
Term of Validity: 14 months
Isothermal nucleic acid Principle Summary
The kit is based on room and constant temperature nucleic acid rapid amplification technology, its principle is that at room and constant temperature, the recombinase and primer form a protein/single-stranded nucleotide complex Rec/ssDNA, and invade the double-stranded DNA template with the help of auxiliary proteins and single-stranded binding protein SSB; then form a D-loop region at the invasion point and start to scan the DNA duplex, after finding the target region complementary to the primer and disintegration of the complex Rec/ssDNA, the polymerase also binds to the 3′ end of the primer to start the chain extension. The kit relies on the role of NFO enzyme and adds the designed specific molecular probes according to the template, and get the result by colloidal gold technology (sandwich method).
Technical Parameters:
Parameters
Details
Product Name
DNA Isothermal Amplification Kit NFO
Manufacturer
Amp-future
Storage Temperature
-20°C
Kit Components
Enzymes, Buffers ,Reagents
Packaging
48 Tests/box
Detection Limit
500-1000copies/µL
Shipping
ICE
Test Time
5-20mins
Isothermal nucleic acid Product Features
1/ High sensitivity and specificity, short reaction time.
2/ The reagent form is freeze-dried, stable and easy to operate.
3/ The reaction can be operated by metal bath and water bath pot without purchasing expensive PCR apparatus.
Isothermal nucleic acid Applications
Suitable for DNA isothermal rapid amplification kit(NFO type)
Primer: Require pair of nucleotide primers with the length of 25-35 bp.
DNA basic kit reaction temperature is 39 to 42℃ and time is 5-20 minutes.
Notes
1/ Please avoid nucleic acid contamination and set blank control during reaction due to the high sensitivity of the kit.
2/ Please take out the required quantity of MIRA reaction units for the experiment, and put the rest under storage conditions when performing the experiment.
Isolate all sizes of circulating and exosomal RNA, including microRNA
Versatile urine input ranges
No phenol extractions
No carrier RNA
Bind and elute all RNA irrespective of size or GC content, without bias
Concentrate circulating RNA and exosomal RNA into flexible elution volumes
Purified RNA is suitable for a variety of downstream applications, including Small RNA Sequencing. Find out more information on Norgen’s NGS services
Purification is based on spin column chromatography that uses Norgen’s proprietary resin separation matrix
These kits provide a fast, reliable and convenient method to purify and concentrate high quality, high purity and inhibitor-free cell-free circulating RNA, including exosomal RNA as well as viral RNA from fresh, preserved or frozen urine samples. All components for the purification are provided in one convenient and fast kit for the easy processing of small input volumes of bodily fluids. The purified urine RNA is fully compatible with all downstream applications including PCR, qPCR, methylation-sensitive reverse transcription qPCR, reverse transcription PCR, Northern blotting, RNase protection and primer extension, expression array assays, and NGS.
Background
Recent evidence indicates that cell-free circulating RNA (cf-RNA) including exosomal RNA in urine contains valuable information for the discovery of biomarkers that can help for the early detection of certain cancer types and for monitoring the disease status as well as for the detection of any infectious pathogens. Exosomes can be found in saliva, blood, urine, amniotic fluid and malignant ascitic fluids, among other biological fluids. Evidence has been accumulating recently that these vesicles act as cellular messengers, conveying information to distant cells and tissues within the body. These exosomes may play a functional role in mediating adaptive immune responses to infectious agents and tumours, tissue repair, neural communication and transfer of pathogenic proteins. For this reason exosomal RNAs may serve as biomarkers for various diseases including cancer. The advantage for using urine as a source for cancer biomarkers is that it can be acquired in large quantities without using invasive procedures. In addition, repeated sampling from the same individual is applicable, which facilitates longitudinal studies. There are many advantages favouring the use of urinary nucleic acid for cancer biomarker discovery over blood, tissue samples or other bodily fluids, including: (1) urine is non-infectious for HIV and less infectious for many other pathogens; (2) the profile of urinary nucleic acid is similar to that in plasma or serum but with a lower concentration; (3) Nucleic acid purification from urine is technically much easier because of its low protein concentration (1000-fold lower than blood).
Urine Cell-Free Circulating RNA Purification Mini Kit
For sample volumes ranging from 2 mL to 10 mL. The first column will handle the large volume input of urine that is followed by a concentration on a mini column for a final elution of 50 µL to 100 µL.
For sample volumes ranging from 10 mL to 30 mL. The first column will handle the large volume input of urine that is followed by a concentration on a mini column for a final elution of 50 µL to 100 µL
All sizes including miRNA and small RNA (< 200 nt)
Elution Volume
50-100 μL
Time to Complete 10 Purifications
40-45 minutes
Average Yields
Variable depending on specimen
*Please check page 6 of the product insert for average yields and common RNA quantification methods.
Storage Conditions and Product Stability All buffers should be kept tightly sealed and stored at room temperature. These kits are stable for 2 years after the date of shipment. It is recommended to warm Lysis Buffer A for 20 minutes at 60°C if any salt precipitation is observed.