Resources

Product Usage

Does the genomic DNA extraction kit require the addition of RNase when used?

It is usually not necessary to add it. If you need to prepare highly pure total DNA without RNA, you can also bring your own RNase A.

Will the products extracted by the DNA/RNA combined extraction kit be contaminated with proteins?

After adding chloroform and homogenizing, the mixture was centrifuged and divided into three layers, including the upper colorless aqueous phase, the middle phase, and the lower red organic phase. The RNA was dissolved in the aqueous phase, and after removing the aqueous phase, the protein could be precipitated with isopropanol to obtain purified RNA; the soluble substances in the middle phase and the lower red organic phase could be precipitated with anhydrous ethanol to obtain purified DNA. There should be no protein contamination in theory.

There is a white flocculent substance in Buffer II of the plasmid extraction kit. Will this affect its usage? Does the component contain an endotoxin remover?

The white flocculent substance in Buffer II is the SDS precipitated at low temperature. Before use, please place it in a water bath at 37℃ and shake well until the flocculent substance is completely dissolved.


This kit does not contain an endotoxin removal agent. The plasmids obtained through extraction can be directly used for cell transfection.

Is DNase I a recombinant protein and does it contain a tag?

The recombinant protein of this product is tag-free.

Can the plant tissue direct amplification PCR premix be used for amplification of frozen-stored leaves?

Sure, both frozen (at -20℃ or -80℃), dried and fresh plant leaves can be used. However, when using fresh samples, the amplification yield is the highest.

Under what conditions is PCR Enhancer typically used? Will adding PCR Enhancer to a PCR system with normal amplification effects have any impact on the amplification process?

PCR Enhancer can effectively enhance the amplification efficiency of fragments with a length of ≥ 4 kbp and high GC content (GC content > 70%). It can also effectively reduce the background of amplification products and inhibit the generation of non-specific bands. It is not necessary to add it in non-essential situations, as it may affect the stability of primer-template pairing.

Compared to traditional RT-qPCR, what are the advantages and disadvantages of the one-step reverse transcription real-time fluorescent quantitative PCR premix (one-tube premix)?

A one-tube continuous closed-loop operation involves fewer pipetting steps, has an extremely low risk of cross-contamination, and is time-saving and labor-saving. It is highly suitable for clinical diagnosis and high-throughput large-scale sample screening. However, due to the shared buffer system for reverse transcription and qPCR, the reaction conditions often compromise between the two, thus making it impossible to separate the two-step reactions.

Can the DNA Loading Buffer series be used for non-nucleic acid samples in agarose gel electrophoresis?

At present, this series of products have undergone agarose gel electrophoresis using semiconductor metal quantum dots. This can help the quantum dot samples settle in the sample wells, and has no significant effect on the fluorescence intensity. However, it should be noted that EDTA should not be included in the electrophoresis system at this time, as it will form chelation with the metal ligands of the semiconductor metal quantum dots, resulting in fluorescence quenching.

How to choose the seamless cloning kit and the enhanced seamless cloning kit?

The seamless cloning kit can meet the seamless cloning needs in most scenarios. It can achieve seamless cloning for up to 4 fragments with a total length of 4000bp when dealing with multiple fragments.


If the number of used fragments is greater than 4, or the length of a single fragment is greater than 4000bp, it is recommended to use the enhanced seamless cloning kit.

When using the enhanced seamless cloning kit, are there any restrictions on the number and size of the inserted fragments?

The total number of fragments should be no more than 8 and the total length should be no more than 10,000 base pairs. There is no size limit for individual fragments.