50 bp DNA Ladder

The dsDNA Quantification Broad Range Kit and dsDNA Quantification High Sensitivity Kit are developed for double stranded DNA quantification using microplate readers. The DNA Quantification BR kit includes BR Dye, BR Dilution Buffer, and BR DNA Standards. The DNA Quantification HS kit includes HS Dye, HS Dilution Buffer, and HS DNA Standards. Simply dilute the Dye with the Dilution Buffer, add DNA sample, then read the concentration using microplate reader. The BR assay is accurate in the linear range from 4 to 1000 ng and the HS assay is accurate in the linear range from 0.2 to 100 ng. Both kits are highly selective for double-stranded DNA over RNA.

The Quantification Kits have several advantages over traditional DNA quantitation such as sensitivity, stability, and tolerance of contaminants.

Both kits reduce the cost of DNA quantification by 60% as compared to other brands.

Selectivity and sensitivity of the kits

Save 60% of the costs.

The performance of the kit is nearly identical to that of Thermo Fisher’s kit (figure below).

Comparison of BioDynami dsDNA Quantification Broad Range Kit with Thermo Fisher kit.

Comparison of BioDynami dsDNA Quantification High Sensitivity Kit with Thermo Fisher kit.

Common contaminants such as salts, free nucleotides, solvents, detergents, RNA, single stranded DNA, or protein are well tolerated in the assay (Table 1).

Overview

• Well-accepted microRNA sequence used for normalization in gene expression studies
• Best suited for RNA purification from samples with low RNA abundance including liquid biopsies (plasma/serum/urine etc.) and low cell or tissue inputs
• Compatible to expression analysis using RT-qPCR – both RNA and matching forward PCR primer provided.
• Fully compatible to Norgen’s microScript cDNA Synthesis system
• Fully compatible to Next Generation Sequencing (Small RNA-Seq) library preparation workflow

The amount of RNA that can be extracted from different biological or clinical samples varies greatly. For example, while a few micrograms of RNA could be easily purified from tissues and cells in excess amounts (such as from a few milligrams of tissue), many liquid biopsy samples may yield very low amounts of RNA. In fact, samples such as urine or plasma may yield 1 – 100 ng or less RNA per 100 µL of sample. Such a range of RNA quantity is often below the detection limit of most commonly used techniques for measuring RNA including nano-spectrophotometry and fluorescent nucleic acid stains. As a result, without properly determined RNA concentration, it becomes very difficult to normalize the starting quantity of RNA used in gene expression studies.

Norgen’s microRNA (cel-miR-39) Spike-In Kit offers a quantified synthetic RNA (cel-miR-39) for spike-in during RNA extraction procedures and subsequent normalization in RT-qPCR assays. The amount of cel-miR-39 RNA recovered after RNA extraction is directly correlated with the amount of total RNA recovered. After reverse transcription (such as with Norgen’s microScript Reverse Transcription system) of the sample RNA (with spike-in), the level of cel-miR-39 can be determined by subjecting the cDNA generated to quantitative PCR (qPCR) using fluorescent nucleic acid stains such as SYBR Green.  A cel-miR-39 specific primer is included in the kit. The level of expression of any target transcripts in different RNA samples can now be normalized to the cel-miR-39 transcript level using standard method such as ∆∆Ct relative quantification.

In addition, the cel-miR-39 RNA is compatible to library preparation methods (including ligation-based protocols) in Next Generation Sequencing (Small RNA-Seq) workflows. The cel-miR-39 RNA could be used for normalization as well as for tracking library construction efficiency.

Details

Supporting Data

Figure 1 / 2

Previous

Next

Click for expanded view

Storage Conditions
Upon receipt, store Norgen’s microRNA (cel-miR-39) Spike-In Kit at -20°C or lower. Avoid multiple freeze-thaw cycles. If needed, prepare smaller working aliquots and store at -20°C or lower.

Overview

• Ready-to-use
• Quantitative
• Highly Stable
• Precise
• Fifteen discrete fragments ranging from 300 bp to 24000 bp
• Higher intensity reference bands at 5000 bp and 10000 bp

The Norgen UltraRanger 1 kb DNA Ladder is prepared to ensure quality and batch-to-batch consistency. Our UltraRanger contains fifteen discrete fragments ranging from 300 bp to 24000 bp with higher intensity reference bands at 5000 bp and 10000 bp. This ladder is ideal for sizing digested DNA of high molecular weight.

Contents
1mL of premixed DNA ladder (0.5µg/10µL) in loading buffer (10mM EDTA, 10% glycerol, 0.015% bromophenol blue, and 0.17% SDS).

Details

Supporting Data

Figure 1 / 1

Previous

Next

Click for expanded view

UltraRanger 1kb DNA Ladder (Cat# 12100) – 100 loads

Ladder Properties:
• Fifteen discrete fragments ranging from 300 bp to 24000 bp

• Higher intensity reference bands at 5000 bp and 10000 bp

Recommended Use:
Mix thoroughly. For best results, load 10µL of DNA ladder per well. For precise mass determination with a densitometer, stain gel after electrophoresis using 0.5µg/mL ethidium bromide for 30-40 minutes. The table above shows the size and mass for each band based on 10µL ladder per well.

Storage: 
Stable at room temperature. For longer term storage, -20°C is recommended.

This ladder was standardized using 10µL of DNA per lane on a 0.8 cm thick, 13 x 15 cm, 1.0% agarose gel run in TAE buffer.