OneStep RT-PCR Kit From Qiagen
The QIAGEN OneStep RT-PCR Kit allows reverse transcription and PCR amplification to be performed sequentially in a single tube, referred to as a “one-step” reaction. The QIAGEN OneStep RT-PCR Enzyme Mix contains Omniscript and Sensiscript Reverse Transcriptases, designed to perform reverse transcriptions of RNA amounts from 1 pg to 2 ìg; the mix also contains HotStarTaq DNA Polymerase for performing PCR. To ensure the temporal separation of both processes, the reaction is incubated for 15 min at 95°C after the reverse transcription reaction; incubation at this temperature inactivates Omniscript and Sensiscript Reverse Transcriptases while it activates HotStarTaq DNA Polymerase. read more...
GoTaq® Green Master Mix From Promega
Amplification of a target sequence by PCR is a routine procedure in many biological labs now. While some intend to have a precise sequence without errors, some use error prone PCR, and many just want to know whether their sequence is there or not – that is when I used Promega’s GoTaq® Green Master Mix. read more...
MinElute PCR Purification Kit From Qiagen
For some downstream assays, such as ligation and transformation, restriction enzyme digestion, in vitro transcription, hybridization and radioactive and fluorescent sequencing, a researcher has to clean up PCR products from the amplification mixture. During this process, all enzymes should be removed, independent of size and secondary structure. There are several suitable kits for this purpose. We use Qiagen’s MinElute PCR purification kit to obtain pure PCR product, generally for sequencing. The kit is suitable for direct purification of double-stranded PCR products that are between 70 bp and 4 kb. read more...
DNA Ligation Kit, Version 1 From Takara
How did I get to know the DNA Ligation Kit from Takara? Around 2 years ago, I was trying to do a cloning and I was stuck at the ligation step. At first, I was using the regular T4 DNA ligase and attempted to perform ligation several times with this enzyme, but couldn’t get any clones after transformation. I discussed this with the post-doc in the lab. He then suggested that I try the Takara kit. Amazingly, I got positive colonies with the first reaction. I have used this kit for all my cloning since then. read more...
pYES2.1 TOPO TA Expression Kit From Invitrogen
The pYES2.1 TOPO TA Expression Kit allows you to clone a gene via PCR without using the often frustrating ligase enzyme. You can produce a PCR product, ligate into the pYES2.1 /V5-His-TOPO vector and transform the new recombinant vector into E. coli in the same day. The kit takes advantage of the fact that all PCR products amplified with Taq polymerase leave a single deoxyadenosine (A) to the 3’ end of the PCR product. The TOPO cloning vector, which is supplied in the kit, has a single complimentary overhang, a 3’ deoxythymidine (T) residue, allowing a ligation between the two products. read more...
QuickClean 5M PCR Purification Kit From GenScript Corporation
The QuickClean 5M PCR Purification Kit from GenScript Corporation (Piscataway, NJ) is designed to remove primers, salts, nucleotides, enzymes, and dyes from reactions to allow the DNA of interest to be used in a variety of downstream applications. Although procedures such as PCR and restriction digests are frequently used simply as analytical tools, they also have wide applicability as preparative procedures.In these cases the success of downstream applications, such as cloning, sequencing, or in vitro transcription, can be critically compromised by the presence of unwanted reaction components from preceding procedures. read more...