Tri(propargyl-PEG2-NHCO-ethyloxyethyl)amine

The RNA Seq Library Prep Kit was developed for construction of high quality NGS  libraries for next generation sequencing (illumina and MGI Platforms). RNA Sequencing is a very powerful tool to analyze transcriptome such as gene expression and transcription regulation, splicing characterization, mutation and variation detection etc. The kit needs purified RNA (example: rRNA depleted RNA or polyA mRNA) as input for library construction. Library multiplexing is possible with different types of indexes.

RNA Seq Library Prep Kit Workflow

Three index types are available for the illumina platform kits:

Non-index (illumina Cat.# 30055): Libraries do not have index.

Index (illumina Cat.# 30056): A unique barcode sequence with 6 bases has been included in each of the index primers. RNA Sequencing library multiplexing is possible with up to 48 samples. Index information can be downloaded here.

Unique dual index (illumina Cat.# 30057): RNA Sequencing library multiplexing up to 96 samples is possible with the unique dual indexes. We have developed a 4-Base Difference Index System. The system can generate indexes with at least 4 bases different from others in the 8-base indexing region. the unique dual indexing primers identify sequencing errors such as index hopping, mis-assignment, and de-multiplexing errors. Index information can be downloaded here.

Indexes are available for the MGI platform kits (Cat.# 34112).

Features

• • • Quick protocol
      • Libraries will be ready in 2 hours
      • Hands-on time is only ~10 minutes
    • Guaranteed quality
      • High yield
      • Uniform coverage of transcripts
    • Simple workflow
    • Input purified RNA amount: From 3 ng to 100 ng

Comparison of the protocol time: BioDynami RNA Seq Library Prep Kit vs other vendors’ kits. Hands-on time and walk-away time were indicated.

Library size and distribution of BioDynami kit, 20 ng and 3 ng of polyA mRNA as input.

Comparison of library yield and duplication rate under the same condition: 20 ng and 3 ng of polyA mRNA were used as input. PCR cycle numbers were indicated.

Comparison of coverage of transcripts: 20 ng of polyA mRNA were used as input. BioDynami kit has more uniform coverage

Introduction

Intended Use

For selective enrichment culture of Listeria monocytogenes in food.

Principle and Interpretation

Tryptone, proteose peptone, meat extract, yeast paste powder provide nitrogen sources, vitamins, amino acids, and growth factors; sodium chloride can maintain a balanced osmotic pressure; sodium dihydrogen phosphate and potassium dihydrogen phosphate as buffering agents; esculin are fermentable sugars; lithium chloride and other antibiotics can inhibit Gram negative bacteria and most Gram positive bacteria.

Formulation

Preparation

Suspend 57.4g in 1 L of distilled or deionized water. Heat with frequent agitation and boil to completely dissolve the powder. Distribute into flasks. Autoclave at 121℃ for 15 minutes. Cool to 45-50℃,aseptically add the contents of 1 vial of Fraser Selective Supplement (SR0120) to each 225 mL of base to prepare FB1 solution; Add one reagent (SR0130) to each100 mL of FB2 culture medium to prepare FB2 enrichment solution.

Quality Control

Cultural characteristics observed after incubation at 35-37°C for 46~50 hours

Storage and Shelf Life

2-30℃，Keep container tightly closed, avoid direct sunlight.

Use before expiry date on the label.

 Precautions

1. When weighing the dehydrated medium, please wear masks to avoid causing respiratory system discomfort

2. Keep container tightly closed after using to prevent clumping.

Waste Disposal

Microbiological contamination was disposed by autoclaving at 121°C for 30 minutes.

Revision

On June 14, 2024

References

ISO 11290

Intended Use For selective enrichment culture of Listeria monocytogenes in food. Principle and Interpretation Tryptone, proteose peptone, meat extract, yeast paste powder provide nitrogen ……

Introduction

Usages:
For selective cultivation of bacteria especially Vibrio.

Principle:
Peptone provide carbon and nitrogen sources; sodium chloride to maintain osmotic equilibrium; higher pH can suppress the growth of coliform and other bacteria, it is conducive to the growth of Vibrio cholerae.

Formulation（per liter）:
Peptone 10g
Sodium chloride 10g
Final pH 8.5 ± 0.2

How to use：
1.Suspend 18g in 1L of distilled water, stirring heated to boiling to completely dissolve, autoclave at 121℃ for 15 minutes.
2.Diluted and treated samples.

Quality control：
          　　

Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.

Specifications: 250g/bottle 

250g