Discover the world with our lifehacks

What is MNase used for?

What is MNase used for?

Abstract. Micrococcal nuclease (MNase) is widely used to map nucleosomes. However, its aggressive endo-/exo-nuclease activities make MNase-seq unreliable for determining nucleosome occupancies, because cleavages within linker regions produce oligo- and mono-nucleosomes, whereas cleavages within nucleosomes destroy them …

What is MNase assay?

Micrococcal nuclease (MNase) assays are useful for defining nucleosome position and chromatin architecture (Rivera and Ren, 2013; Tsompana and Buck, 2014). This enzyme preferentially cleaves the linker region between nucleosomes and then digests the free DNA ends toward the core nucleosome.

What is Pag MNase?

(Plasmid #123461) Print. Expresses Protein A and Protein G IgG binding domains fused to micrococcal nuclease for purposes of CUT&RUN. Includes (his)6 tag for purification and HA-tag for secondary immunoprecipitation.

What is the purpose of Micrococcal nuclease?

Micrococcal Nuclease is an endonuclease that preferentially digests single-stranded DNA or RNA, especially at AT- or AU-rich regions. The enzyme will also digest double-stranded DNA or RNA, making it an essential component of chromatin immunoprecipitation (ChIP) assays.

What is ChIP seq data?

ChIP-sequencing, also known as ChIP-seq, is a method used to analyze protein interactions with DNA. ChIP-seq combines chromatin immunoprecipitation (ChIP) with massively parallel DNA sequencing to identify the binding sites of DNA-associated proteins.

What is DNA spike?

A spike-in is designed to bind to a DNA molecule with a matching sequence, known as a control probe. This process of specific binding is called hybridization. A known quantity of RNA spike-in is mixed with the experiment sample during preparation.

How many types of nucleases are there?

There are two major types of nucleases: (1) exonucleases and (2) endonucleases. Exonucleases are capable of removing nucleotides one at a time from a DNA molecule whereas endonucleases work by cleaving the phosphodiester bonds within DNA molecule.

What is the pH of nuclease?

The optimal pH for nuclease activity was found to be between pH 8.0 and 9.0 (Fig. 5b) suggesting that hPLSCR1 probably acts as an alkaline nuclease.

What is the difference between ChIP-seq and RNA-seq?

ChIP-seq is run to map the global binding sites of the studied transcription factor, and RNA-seq is measured from the wild type and knockout model to identify genes regulated by the TF.