CDX-2 is a caudal-related homeobox transcription factor that is expressed by intestinal epithelial cells. CDX-2 is a useful marker for gastrointestinal carcinoma, and for determining the origin of gastrointestinal metastatic adenocarcinoma and carcinoids. Anti-CDX-2 is used for differentiating lung and metastatic colorectal adenocarcinoma, however mucinous ovarian carcinoma also react positively with Anti-CDX-2, thereby limiting the ability to differentiate from metastatic colorectal adenocarcinoma.
This kit provides a fast, reliable and simple procedure for high throughput isolation of DNA from all types of soil samples including common soil samples and difficult soil samples with high humic acid content such as compost and manure. A combination of chemical and physical homogenization effectively lyses all microorganisms in the soil sample, and the kit removes all traces of humic acid using the provided Organic Substance Removal (OSR) Solution and Humic Acid Removal plate (HAR). Total genomic DNA can be isolated and purified from all the various microorganisms found in soil, such as bacteria, fungi and algae. The purified DNA is of the highest quality and is fully compatible with downstream PCR and qPCR applications and more for any metagenomic study, as all humic acid substances and PCR inhibitors are removed during the isolation.
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| Kit Specifications | |
| Binding Capacity Per Well | 50 μg |
| Maximum Loading Volume Per Well | 500 μL |
| Size of DNA Purified | All sizes |
| Maximum Amount of Starting Material | 250 mg |
| Time to Complete 96 Purifications | 50 minutes |
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 1 year after the date of shipment.
| Component | Cat. 26560 (192 preps) |
|---|---|
| Lysis Buffer G | 2 x 100 mL |
| Lysis Additive A | 25 mL |
| Binding Buffer I | 25 mL |
| OSR Solution | 12 mL |
| Wash Solution A | 2 x 38 mL |
| Elution Buffer B | 30 mL |
| Bead Tubes | 200 |
| HAR Plate | 2 |
| 96-Well Filter Plate | 2 |
| Adhesive Tape | 4 |
| 96-Well Collection Plate | 4 |
| 96-Well Elution Plate | 2 |
| Product Insert | 1 |
Sample type purification kit guide
The 16S V2-V3 Library Preparation Kit for Illumina consists of the reagents and components required for library preparation of the 16S V2-V3 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 V2-V3 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 V2-V3 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 V2-V3 Library 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. 70300 (24 preps) | Cat. 70310, 70320, 70330, 70340 (96 preps) |
|---|---|---|---|
| Amplicon PCR (PCR 1) | MGX Master Mix | 330 µL | 1,320 µL |
| 16S V2-V3 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 |
