Abstract. The coat protein of the RNA bacteriophage MS2 binds a specific stem-loop structure in viral RNA to accomplish encapsidation of the genome and translational repression of replicase synthesis.
What is MS2 detected?
MS2 is a bacteriophage that infects “male” Eschericia coli. Male E. coli are bacterial cells capable of passing a portion of their genetic material (typically in plasmid form) to other bacterial cells through a structure called a pilus.
How does MS2 system work?
The MS2-MCP system allows imaging multiple steps of the mRNA life cycle with high temporal and spatial resolution. However for short-lived mRNAs, the tight binding of the MS2 coat protein (MCP) to the MS2 binding sites (MBS) protects the RNA from being efficiently degraded, confounding the study of mRNA regulation.
What is the MS2 system?
Abstract. The MS2–MCP system enables researchers to image multiple steps of the mRNA life cycle with high temporal and spatial resolution.
What is MS2 phage control?
• MS2 Phage Control – A RNA control to validate the effectiveness of the sample research and the absence of inhibitors in the PCR reaction; to execute the control, adding 10 μL of MS2 Phage Control to the samples before extracting the RNA.
What is rip sequencing?
RIP-Seq maps the sites at which proteins are bound to the RNA within RNA-protein complexes. In this method, RNA-protein complexes are immunoprecipitated with antibodies targeted to the protein of interest. After RNase digestion, RNA protected by protein binding is extracted and reverse-transcribed to cDNA.
What does MS2 do to your body?
MS2 infects enteric bacteria carrying the fertility (F) factor, a plasmid that allows cells to serve as DNA donors in bacterial conjugation. Genes on the F plasmid lead to the production of an F pilus, which serves as the viral receptor.
Is MS2 an antibody?
The bacteriophage MS2 is a small, male-specific RNA bacteriophage that infects E. coli and other members of the Enterobacteriaceae family….Key Specifications Table.
| Biological Information | |
|---|---|
| Antibody Type | Polyclonal Antibody |
| Entrez Gene Number | NP_040648.1 |
| Purification Method | Affinity Purified |
| UniProt Number | P03612 |
What is MS2 used for?
The F+-specific coliphage MS2 has been widely used as a surrogate for human enteric viruses in many studies on virus transport, disinfection, and fate (1, 5, 17, 20, 21). Here we present an MS2 NAT for different real-time RT-PCR approaches, which was used to monitor RT-PCRs for the detection of human RNA viruses.
Is the poly A tail part of the 3 UTR?
The 3′-UTR contains both binding sites for regulatory proteins as well as microRNAs (miRNAs). Furthermore, the 3′-UTR contains the sequence AAUAAA that directs addition of several hundred adenine residues called the poly(A) tail to the end of the mRNA transcript.
What is a rip assay?
Similar to chromatin immunoprecipitation (ChIP), RNA immunoprecipitation (RIP) can be used to detect the association of individual proteins with specific nucleic acids such as mRNAs, noncoding RNAs (e.g. long non-coding RNAs, enhancer RNAs, miRNAs), and viral RNAs. …
How does primer extension work?
Primer extension is a technique whereby the 5′ ends of RNA can be mapped – that is, they can be sequenced and properly identified. The primer is allowed to anneal to the RNA and reverse transcriptase is used to synthesize cDNA from the RNA until it reaches the 5′ end of the RNA.
What is the n55k mutation in ms2 plasmids?
Both MS2 contains a N55K mutation that increases protein affinity to MS2 stem loop MS2 coat protein sequence was amplified from pCT119-N55K (gift from David Peabody, University of New Mexico). These plasmids were created by your colleagues.
How many tyrosine residues are there in ms2 monomers?
In order to modify the capsids, a diazonium salt was used to target tyrosine residues. Although each MS2 monomer possesses four tyrosines overall, only one (at position 85) appeared to be exposed to solvent based on the crystal structure.
What has the Francis lab done for MS2?
In terms of chemical modification, the Francis lab has focused extensively on the development of new bioconjugation strategies for both the interior and the exterior surfaces of the MS2 capsid.
How many pores are in the MS2 capsid?
As a somewhat unusual feature, the assembled MS2 capsid has 32 pores, each of which is about 2 nm in diameter. This allows small molecules to diffuse more readily into and out of the capsid.
