DBCO-PEG4-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
DBCO-PEG4-acid is an analog of DBCO-Acid with PEG linker and a DBCO group. The DBCO groups is commonly used for copper-free Click Chemistry reactions due to its strain promoted high energy. The hydrophilic PEG chain allows for increased water solubility. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Mastitis is the single most costly disease of dairy cattle resulting in the reduction of milk yield and quality. The inflammation of the utter is mainly caused by bacteria, and Staphylococcus aureus (S. aureus) is often considered the most common cause of contagious mastitis in dairy herds. S. aureus infection is estimated to be present in up to 90% of dairy farms and is responsible for 35% of the economic loss in the dairy industry. S. aureus is a facultatively anaerobic, Gram positive bacterium. The majority of S. aureus strains are catalase-positive and coagulase-positive, which forms the basis of traditional identification methodology.
Staphylococcus aureus Quantified Bacterial DNA Standard is prepared from cultured bacteria using Norgen’s sample preparation technology. The purified DNA is quantified vigorously using multiple methods including spectrophotometry, gel densitometry and real-time PCR. It is intended to be used as a positive control or PCR quantification standard for Staphylococcus aureus.
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| Volume Provided | 250 µL |
| DNA Quantity | 2 x 104 copies per µL |
Storage Conditions
Upon receipt, store Norgen’s Staphylococcus aureus Quantified Bacterial DNA Standard at -20oC or lower. Avoid multiple freeze-thaw cycles. If needed, prepare smaller working aliquots and store at -20oC or lower.
The NGS Low Input DNA Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality NGS libraries with low input DNA amount from 1 ng to 400 ng. The kit allows scientist to study samples with limited DNA such as tumor samples, patient samples, and other specially collected samples (FACS sorting etc.). The kit has high library conversion efficiency with as little as 1 ng DNA input. The fast and simple 1.5-hour protocol makes libraries with even coverage and low GC-bias based our unique chemistry for DNA end-polishing and ligation.
The kit needs double strand DNA fragments (blunt and/or sticky) as input DNA for NGS library preparation, and is compatible with DNA fragments generated from both enzymatic approach (for example, BioDynami DNA fragmentation enzymes, Cat.# 40061 and Cat.# 40062) and mechanical approaches such as sonication and nebulization etc.
NGS Low Input DNA Library Prep Kit Workflow
Three index types are available for the NGS Low Input DNA Library Prep Kit of illumina platform:
Non-index (Cat.# 30022): Libraries do not have index.
Index (Cat.# 30024): Each of our index primers contains a unique barcode sequence with 6 bases that can be used to identify the low input DNA libraries. Library multiplexing up to 48 samples is possible. Index information can be downloaded here.
Unique dual index (Cat.# 30025): Library multiplexing up to 96 low input DNA libraries is possible with unique dual indexes with our Four-Base Difference Index System. The system allows us to make indexes for the libraries that have at least 4 bases different from each other in the 8-base barcode length. Our unique dual index primers can reduce sequencing errors such as de-multiplexing errors, amplification errors, mis-assignment of reads, index cross-contamination, and also index hopping. The kit includes 96 pre-mixed unique pairs of index primers. Index information can be downloaded here.
Indexes are available for the MGI platform kits (Cat.# 34024).
Kit advantages:
Comparison of library conversion efficiency under the same NGS library preparation condition. Input DNA amounts are 1 ng and 10 ng, respectively. DNA was mechanical sheared with Covaris before library prep. BioDynami kit: NGS Low Input DNA Library Prep Kit (Cat. #30022).
Comparison of library yield under the same NGS library prep condition. Input DNA amounts are 1 ng, 10 ng, and 100 ng. DNA was mechanical sheared with Covaris before library prep. BioDynami kit (Cat. #30022). PCR cycle numbers were indicated.
The NGS Low Input DNA Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality NGS libraries with low input DNA amount from 1 ng to 400 ng. The kit allows scientist to study samples with limited DNA such as tumor samples, patient samples, and other specially collected samples (FACS sorting etc.). The kit has high library conversion efficiency with as little as 1 ng DNA input. The fast and simple 1.5-hour protocol makes libraries with even coverage and low GC-bias based our unique chemistry for DNA end-polishing and ligation.
These kits provide fast and reliable procedures for the purification of genomic DNA from viable yeast cells, fungal spores or mycelium, and bacteria including Gram-positive. Genomic DNA is efficiently extracted from the cells by a combination of heat treatment, detergents and Bead Tubes (provided). An optional lyticase treatment allows for improved DNA yields with certain fungal and yeast species. Recovered genomic DNA is of excellent yield and purity for any downstream application including PCR, qPCR, Restriction Fragment Length Polymorphism (RFLP), Amplified Fragment Length Polymorphism (AFLP), sequencing, SNP analysis and more.
Fungi/Yeast Genomic DNA Isolation Kit (Spin Column)
This kit provides rapid spin column purification of genomic DNA from viable yeast cells, fungal spores or mycelium, and bacteria including Gram-positive. Preparation time for a single sample is less then 30 minutes, and each kit contains sufficient materials for 50 preparations.
Fungi/Yeast Genomic DNA Isolation 96-Well Kit (HT)
Norgen’s Fungi/Yeast Genomic DNA Isolation 96-Well Kit provides a fast, reliable and simple procedure for high throughput isolation of DNA from viable yeast cells, fungal spores or mycelium and Gram-positive bacteria. The purification could be performed on either a vacuum manifold or using centrifugation. Complete 96 purifications in 40 minutes.
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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: Fungi (Wet weight) Yeast or Gram-positive bacterial culture | 50 mg 0.5 mL – 1 mL |
| Time to Complete 96 Purifications | 40 minutes |
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. These reagents should remain stable for at least 2 years in their unopened containers.
| Component | Cat. 27300 (50 preps) | Cat. 27350 (192 preps) |
|---|---|---|
| Lysis Buffer L | 30 mL | 2 x 60 mL |
| Resuspension Solution A | 20 mL | 60 mL |
| Solution BX | 28 mL | 2 x 28 mL |
| Wash Solution A | 18 mL | 2 x 38 mL |
| Elution Buffer B | 15 mL | 30 mL |
| Bead Tubes | 50 | 200 |
| Spin Columns | 50 | – |
| Collection Tubes | 50 | – |
| 96-Well Plate | – | 2 |
| 96-Well Collection Plate | – | 2 |
| Adhesive Tape | – | 4 |
| Elution Tubes (1.7 mL) | 50 | – |
| 96-Well Elution Plate | – | 2 |
| Product Insert | 1 | 1 |
