The DM1100 ExcelBand™ 50 bp DNA Ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading. The DNA ladder DM1100 is composed of 17 individual DNA fragments: 1.5k, 1.2k, 1k, 900, 800, 700, 600, 500, 450, 400, 350, 300, 250, 200, 150, 100, and 50 bp derived from a mixture of PCR products and specifically digested plasmid DNA. This product contains two enhanced bands (500 bp and 200 bp) for easier reference. In addition, the low range Orange G tracking dye mimics the migration of a 50 bp dsDNA during electrophoresis is also added for real time monitoring.
Detail
Description
The DM1100 ExcelBand™ 50 bp DNA Ladder is a ready-to-use DNA ladder, which is pre-mixed with loading dye for direct gel loading. The DNA ladder DM1100 is composed of 17 individual DNA fragments: 1.5k, 1.2k, 1k, 900, 800, 700, 600, 500, 450, 400, 350, 300, 250, 200, 150, 100, and 50 bp derived from a mixture of PCR products and specifically digested plasmid DNA. This product contains two enhanced bands (500 bp and 200 bp) for easier reference. In addition, the low range Orange G tracking dye mimics the migration of a 50 bp dsDNA during electrophoresis is also added for real time monitoring.
Features
Sharp bands
Quick reference— enhanced bands
Ready-to-use— premixed with loading dye for direct loading
Stable— room temperature storage over 6 months
Source
Phenol extracted PCR products and dsDNA digested with specific restriction enzymes, equilibrated in 10 mM Tris-HCl (pH 8.0) and 10 mM EDTA.
Range
50 ~ 1,500 bp
Concentration
54 µg/ 500 µl
Recommended loading volume
5 µl/ well
Storage
Room temperature for 6 months 4°C for 12 months -20°C for 36 months
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029999P1 Xylose Lysine Desoxycholate Agar
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Product Info
Introduction
Usages: For selective isolation of Gram-negative bacteria, especially for Shigella and Salmonella.
Principle: Yeast extract powder provide nitrogen, vitamins, growth factors; sodium chloride to maintain osmotic equilibrium ferric ammonium citrate of iron salts to produce a black iron sulfide; agar as medium coagulant; phenol red as pH indicator.
Formulation（per liter）: Xylose 3.50g L-Lysine 5.00g Lactose 7.50g Sucrose 7.50 g Sodium Chloride 5.00 g Yeast Extract 3.00g Sodium Desoxycholate 2.50g Sodium Thiosulphate 6.80g Fe-Ammonium Citrate 0.80g Phenol Red 0.08g Agar 13.50 Final PH 7.4±0.2
How to use: 1.Suspend 55.2g in 1Lof distilled or deionized water. Heat with frequent agitation and boil to completely dissolve the powder. Do not autoclave ,cool to 50℃ and pour into sterile petri dishes. 2.Dilluted and treated samples.
Quality control: Quality control strains were inoculated ,and cultured at 36 ± 1 ℃ for 24h ,results show as follows: strain name strain code growth feature Arizona bacteria CMCC (B) 47001 good black colonies Salmonella typhimurium CMCC (B) 50115 good black colonies Streptococcus faecalis CMCC32223 prohibited —
Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.
Attogene has developed the first of its kind and patent pending technology that uses a novel RNA substrate tagged on the 5′ and 3′ end with a Biotin that is attached to our streptavidin colloidal gold reporter molecules and a test line tag. In the absence of RNases, the gold tagged RNA molecule will flow up the lateral flow strip and bind to the test line using an anti tag antibody (INDICATING that NO RNase is detected). When RNases are present, however, the RNA substrate is cleaved, and the 5′ and 3′ tags are spatially separated in solution cauing the test line to disapear.
This test can be used to rapidly and efficiently detect ribonucleases in both liquid and on solid surfaces and a perfect tool for monitoring mRNA vaccine manufacturing.
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RNase activity in a convenient and sensitive colormetric assay that delivers results in real time. Great for Quality Testing for RNase contamination of materials and supplies.
NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms)
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Product Info
The NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality libraries for next generation sequencing. The kit uses intact genomic DNA (EDTA-free DNA or DNA resuspended in TE buffer) as input DNA without an additional DNA fragmentation step. Our technology provides a fast and simple workflow. DNA libraries can be generated around 2 hours with only 10 min hands-on time. Library multiplexing is possible.
NGS DNA Fragmentation & Library Prep Kit Workflow
The incorporation of DNA fragmentation in the kit makes it possible to directly use intact genomic DNA as input DNA without the need of mechanical DNA shearing or enzymatic DNA fragmentation. The NGS DNA Fragmentation & Library Prep Kit does not generate sequencing bias as compared to library using mechanical sheared DNA as input. Sequence coverage is also consistent between enzymatic shearing and mechanical shearing. The library size is inversely correlated with the incubation time of step 1 at 20°C.
Three index types are available for the kit of the illumina platform:
Non-index (Cat.# 30026): Libraries do not have index.
Index (Cat.# 30028): Each of the index primers contains a unique index sequence of 6 bases. Library multiplexing for 48 samples is possible. Index information can be downloaded here.
Unique dual index (Cat.# 30030): Library multiplexing for 96 samples is possible. With the unique features of our 4-Base Difference Index System, the index sequence is 8-base long and each index has 4 bases different from others. Our unique dual index primers effectively identify sequencing errors such as index hopping, mis-assignment of reads, and de-multiplexing errors etc. The unique dual index primers set consists of 96 pre-mixed unique pairs of index primers. Index information can be downloaded here.
Indexes are available for the MGI platform kits (Cat.# 34028).
Kit features:
1.5-hour protocol from intact genomic DNA to NGS library
Intact genomic DNA as input, DNA fragmentation is not needed.
Works with both EDTA-free DNA and DNA resuspended in TE buffer
Library conversion efficiency: 100 ng, 300 ng and 500 ng of intact genomic DNA were used as input.
The library size is inversely correlated with the incubation time of step 1 at 20°C.
NGS data comparison: enzymatic shearing versus mechanical shearing
Enzymatic shearing • DNA shearing and library prep: BioDynami NGS DNA Fragmentation & Library Prep Kit Mechanical shearing • DNA shearing: Covaris sonication • Library prep: BioDynami NGS DNA Library Prep Kit.
Document
The NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality libraries for next generation sequencing. The kit uses intact genomic DNA (EDTA-free DNA or DNA resuspended in TE buffer) as input DNA without an additional DNA fragmentation step. Our technology provides a fast and simple workflow. DNA libraries can be generated around 2 hours with only 10 min hands-on time. Library multiplexing is possible.
