N-(Propargyl-PEG2)-DBCO-PEG3-NHS ester is a PEG linker with a terminal NHS ester to perform facile reactions with amine groups of molecules as well as a propargyl to react with azides to form a triazole. The DBCO can participate in copper-free Click Chemistry reactions.
N-(Propargyl-PEG2)-DBCO-PEG3-NHS ester is a PEG linker with a terminal NHS ester to perform facile reactions with amine groups of molecules as well as a propargyl to react with azides to form a triazole. The DBCO can participate in copper-free Click Chemistry reactions.
Propargyl-PEG13-bromide is a heterobifunctional reagent that can participate in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage. The bromide (Br) can be used in nucleophilic substitution reactions. The PEG units increase water-solubility of the molecule in in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG13-bromide is a heterobifunctional reagent that can participate in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage. The bromide (Br) can be used in nucleophilic substitution reactions. The PEG units increase water-solubility of the molecule in in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Sample type purification kit guide
The 16S V3-V5 Library Preparation Kit for Illumina consists of the reagents and components required for library preparation of the 16S V3-V4 amplicon libraries to be used for next-generation sequencing on Illumina platforms. All molecular reagents including primers, enzyme mixes, indexes, and buffers are provided. Instructions for PCR clean up with the AMPure XP Magnetic Beads (supplied by customer) are also included for rapid purification of nucleic acid products generated at two steps of the workflow. The library prep workflow could be used for purified DNA inputs from different sources including stool, soil, water, saliva, plant, urine, skin swab, vaginal swab, cheek swab, nasal swab, plasma/serum, tongue swab, gum swab, and others.
The 16S V3-V5 Library Preparation Kit for Illumina has a streamlined procedure that reduces the handling time such that the library prep procedure can be completed in approximately 4 hours (see diagram below). Input DNA is first subjected to targeted PCR to amplify the V3-V4 region of the DNA encoding 16S rRNA. The post-PCR reaction is then cleaned up using AMPure XP beads. Dual index primers are then added using a limited-cycle PCR. The indexed amplicons flanked by 5′ and 3′ barcoded adaptors are then cleaned using AMPure XP beads. The libraries are then ready for quantification, pooling and sequencing.
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| Minimum amount of starting material: | 2.5 µL of DNA (5 ng/µL) |
| Time to complete library preparation: | 4 hours |
Storage Conditions and Product Stability
Norgen’s 16S V3-V5Library Prep Kit for Illumina is shipped as one kit box (for the 24 prep kit) or two sub-component kits (for the 96 prep kit). All kits should be stored at -20°C upon arrival.
All kit components should remain stable for at least 1 year when stored at the specified storage conditions.
| Step | Component | Cat. 70500 (24 preps) | Cat. 70510, 70520, 70530, 70540 (96 preps) |
|---|---|---|---|
| Amplicon PCR (PCR 1) | MGX Master Mix | 330 µL | 1,320 µL |
| 16S V3-V5 Primer Mix | 70 µL | 280 µL | |
| Index PCR (PCR 2) | Indexing Master Mix | 660 µL | 2 x 1,320 µL |
| N7xx Index Primer | 50 µL | 50 µL | |
| S5xx Index Primer | 70 µL | 70 µL | |
| PCR Clean-Up | Resuspension Buffer | 2 x 1,250 µL | 2 x 5,000 µL |
| Nuclease-free water | 1,250 µL | 1 x 6,000 µL |
Over the past several decades, mitochondrial DNA (mtDNA) has played an increasingly important role in forensic analyses of various criminal cases. A few hairs left at a crime scene contain enough mtDNA for extraction. The hair shaft, which protrudes out of the scalp, does not contain any nuclear DNA. It does, however, contain mtDNA. While nuclear DNA is present in only two copies per cell, the small circular mtDNA molecule is present in hundreds to thousands of copies per cell making it very abundant. Mitochondrial DNA is maternally inherited, and all of a woman’s offspring will have the same mtDNA profile. An advantage of this is that a single maternal relative of that person may provide a reference sample for comparison to a sample found at a crime scene.
Norgen’s Hair Mitochondrial DNA Isolation Kit provides a fast, reliable, and simple procedure for isolating mtDNA from hair shafts. Purification is based on spin column chromatography and the DNA is preferentially purified from other components. Typical yields will vary depending on the sample input volume used. The purified DNA is compatible with all downstream applications including PCR and NGS.
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Storage Conditions and Product Stability
Store DTT at -20°C upon arrival. All other solutions should be kept tightly sealed and stored at room temperature. These reagents should remain stable for at least 1 year in their unopened containers. The kit contains a ready to-use Proteinase K solution, which is dissolved in a specially prepared storage buffer. The Proteinase K is stable for up to 2 years after delivery when stored at room temperature. To prolong the lifetime of Proteinase K, storage at 2–8°C is recommended.
| Component | Cat. 69400 (50 preps) |
|---|---|
| DTT | 6 mL |
| Proteinase K | 4 mL |
| Lysis Additive A | 6 mL |
| Lysis Buffer B | 20 mL |
| Wash Solution A | 38 mL |
| Elution Buffer B | 8 mL |
| Micro Spin Columns | 50 |
| Elution Tubes | 50 |
| Collection Tubes | 50 |
| Product Insert | 1 |
