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We narrowed to 353 results for: SAM activators

Showing: 181 - 200 of 353 results

  2. CRISPR 101: Any Base Transversion Editors

    Type
    Blog Post
    ...considerable A → G editing activity at most sites, in addition to A → C and A → T activity. To drive selective...instead of human AAG (remember, MPG and AAG are the same protein!) (Chen et al., 2024). They called their...different teams succeeded with this approach around the same time (He et al., 2024; Tong et al., 2024; Ye et ...hypoxanthine from DNA, creating an abasic site. The same protein (or its homologs) has more than one name...

  3. Recombinase-based State Machines Enable Order-dependent Logic in vivo

    Type
    Blog Post
    ...control recombinase activity. For example, post-transcriptional recombinase activation via RNA toehold riboregulation...states in a sample; instead, it will suggest the predominant state of registers in a sample based on a ... use the same recognition site array on the register, and all three-input GRSMs use the same recognition...implement the same gene regulation program. We recommend testing multiple register designs for the same gene regulation...If an attB-attP pair is aligned (sites facing the same direction) on a register, then the result of their...amplify in some states but not others. Because samples of many registers will likely not be homogenous...infer the predominant state of registers within a sample using a metric that we describe in the Materials...

  4. Hassle-free 96-well Format Epitope Tagging Using Cas9 Ribonucleoprotein

    Type
    Blog Post
    ...in our hands, is both cost-effective and highly active. After csRNP complex formation, a single-stranded...efficiently and serves as a good control for both the activity of CRISPR reagents and ICC antibody specificity...of the crRNA (aim for 40-60% GC content) crRNA activity Local chromatin structure (although we could successfully...turnaround time 5-7 days); because the tracrRNA is the same in all csRNP experiments, it can be ordered in bulk...

  5. Addgene's Website Update

    Type
    Blog Post
    ...new deposit materials bar New menu Most common activities can be done straight from the new search bar,...Materials”. The “Search Repository” function is our same search bar. And if you’re in the mood to browse ...

  6. Rett Syndrome: A History of Research and Therapeutic Outlooks

    Type
    Blog Post
    ...transcriptional repression, activity dependent de-repression, chromatin remodeling, gene activation, and more. Loss...gene replacement therapy, gene editing, MECP2 reactivation, RNA editing, RNA trans-splicing, and protein...They introduced a mouse MECP2 guide RNA and a hyperactive version of the human RNA base editing enzyme ...https://doi.org/10.3389/fgene.2019.00625 McGraw CM, Samaco RC, Zoghbi HY (2011) Adult Neural Function Requires...

  7. Plasmids 101: E. coli Strains for Protein Expression

    Type
    Blog Post
    ...are insoluble, act on DNA, or are enzymatically active. For this reason, recombinant proteins are typically...* Streptomycin and Tetracycline Contains highly active thioredoxin reductase and glutathione reductase...proteins. hsdSB (rB- mB-): These strains have an inactivated native restriction/methylation system. This means...-deficient; allows for cloning and expression in same strain F- recA1 hsdR(rK12- mK12+) (DE3) (RifR) ...plasmids utilize inducible promoters, which are 'inactive' until an inducer such as IPTG is added to the...

  8. Easing the Protein Purification Process with pCri

    Type
    Blog Post
    ...purification can be one of the most stressful lab activities. Working with proteins requires a substantial...N- and C-terminal. Each set of plasmids uses the same restriction enzymes for cloning (see schematic below...one need to remove the tag post-purification. A sample of pCri constructs: pCri-1a, -4a and -9a. 6xHis...

  9. Technique: Probe Phage Genomes for Host Binding Proteins

    Type
    Blog Post
    ...genome to be probed for proteins with host-binding activity without the need for genome sequencing or annotation...nitrocellulose for subsequent probing for cell-binding activity.  First, cut out 20 Petri dish-sized circles of...at the same location that their host colonies grew. If your cells of interest stick to the same location...

  10. Which Fluorescence Microscopy Technique is Best for Me?

    Type
    Blog Post
    ...have allowed for real-time monitoring of neuronal activity across substantial 3D volumes. In addition to ...Weijian, and Rafael Yuste. In vivo imaging of neural activity. Nature Methods 14.4 (2017): 349-359. PubMed PMID...due to the refractive index mismatch between the glass and the water-like buffer the sample is immersed...microscope to use for a new sample I always start by asking two questions: 1) Is the sample dynamic or static? ...? 2) Is the sample thin (< 15 μm) or thick? These questions will place each sample into one of four categories...capture in these types of samples is their fast movements. Depending on the sample, a temporal resolution... fluorophores higher in the sample. TIRF is also very gentle on the sample as the majority of the laser...

  11. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    ...population in a procedure termed fluorescence activated cell sorting or FACS (2). By analyzing single ..., Sweet RG, Herzenberg LA (1972) Fluorescence Activated Cell Sorting. Review of Scientific Instruments...was raised in the same host species, of the same Ig subclass, and conjugated to the same fluorochrome as...ensure that samples are single cell suspensions. For cells that tend to aggregate, pass the sample through...using an amine reactive dye, such as LIVE/DEAD stain. Like DNA binding dyes, amine reactive dyes can only...single-stained samples for each fluorochrome in the experiment. Single-stained samples must be as bright...experimental sample. In addition, you should include a panel of “fluorescence-minus one” controls, samples stained...

  12. Plasmids 101: Common Lab E. coli Strains

    Type
    Blog Post
    ...  LacZ β-galactosidase activity abolished   lacY Lactose permease inactivated, lactose cannot be taken...increases plasmid stability recBCD Exonuclease V activity abolished Increased plasmid stability, reduced...convoluted due to researchers sharing and renaming samples throughout history. It was likely isolated in 1918...taken up by cell mcrA, mcrBC Inactivation of pathway that cleaves methylated cytosine DNA Allows for ... foreign (methylated) DNA mrr, Δ(mcrC-mrr) Inactivation of pathway that cleaves methylated adenine or...source leuB β-isopropyl malate dehydrogenase inactivated Requires exogenous leucine source for growth ...proAB lacIqZΔM15 Tn10(TetR Amy CmR)]  Note: Inactivating mutations in specific genes are signified with...

  13. Important Considerations When Using AAVs

    Type
    Blog Post
    ...chemogenetics (Designer Receptors Exclusively Activated By Designer Drugs, DREADDs) and optogenetics as...use of DREADDs (Designer Receptors Exclusively Activated By Designer Drugs) to determine the role of serotonin...chemogenetic receptors delivered by AAV within the same cell types. Not only can we compare these methods...finger nucleases, and many others (12). The most attractive potential of AAVs is their ability to be used...McCarty, D. M., Paul E. Monahan, and Richard J. Samulski. "Self-complementary recombinant adeno-associated...PMC190186. 9. Grieger, Joshua C., and Richard J. Samulski. "Packaging capacity of adeno-associated virus...

  15. Live and Let Dye: Self-Labeling Protein Tags

    Type
    Blog Post
    ...enzyme that has been mutated to block its catalytic activity and instead become trapped in a covalent bond ...brightness, stability, or other properties is an active area of research. If size is a concern for your...sequentially adding different ligands to the same sample to label sub-populations of your protein of interest...probably find lots of different plasmids containing the same protein of interest tagged with different fusion...affinity purification tags, another version with that same red fluorescent protein somebody made because they...ligands (Gautier et al., 2008). Although based on the same original enzyme, SNAP-tag and CLIP-tag show good...specificity for their own ligands with minimal cross-reactivity. Other strategies include using engineered ligases...

  16. RUBY-Red Siliques

    Type
    Blog Post
    ...A) Betacyanin is produced from tyrosine by the activity of 3 enzymes and a spontaneous step. (B) RUBY ...GUS staining or are not suited to studying large samples. RUBY Red But recently, something new has been ...consisting of these three enzymes expressed under the same promoter with self-cleaving 2A site linkages and...transformation next to an untransformed seed from the same plant beginning to germinate. (Top right, second...

  17. Stepping into a Virtual Internship: My Experience at Addgene

    Type
    Blog Post
    ...invited to speak to other Addgenies. I could take an active role in the company and not just feel like an additional... I pondered on the ways that I wouldn't have the same experience as actually being in the office. However...

  20. Genomic Deletions in Mammalian Cell Lines

    Type
    Collection
    ...efficiency, but 37 °C is acceptable. Fluorescence Activated Cell Sorting (FACS) of Transfected Cells Prepare...Run samples on 2% agarose gel at 10 V/cm using 1x Tris-acetate-EDTA (TAE) buffer. Examine samples for ...down to a smaller final volume if necessary. Run samples in a thermocycler using the following parameters...a mini-prep culture. Perform mini-prep for each sample and sequence each colony using a U6 promoter forward... the presence of intended genomic deletion. Run sample in thermocycler and run the following program: ...Numerous polymerases may be used for step 6.3 . Run samples in a thermocycler using the following parameters...to step 7.3 . Extract the gDNA from clones. Run sample in thermocycler: 65 °C for 6 min and 98 °C for ...
Showing: 181 - 200 of 353 results