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Showing: 61 - 80 of 101 results
  1. Plasmids 101: Modular Cloning Applications and Kits

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    Blog Post
    ...within the mitochondrial matrix.     Figure 1: A chart with MoClo kit recommendations for different...Traditional Biology.” ACS Synthetic Biology, vol. 5, no. 1, American Chemical Society (ACS), 4 Nov. 2015, pp...., vol. 4, no. 9, American Chemical Society (ACS), 1 May 2015, pp. 975–86. Crossref, https://doi.org/10.1021...Yeast Mitochondria.” BMC Biotechnology, vol. 17, no. 1, Springer Science and Business Media LLC, 13 Nov. ...Editing in Plants.” BMC Plant Biology, vol. 20, no. 1, Springer Science and Business Media LLC, 23 Apr. ...Arabidopsis Mutants.” The Plant Journal, vol. 106, no. 1, Wiley, 25 Mar. 2021, pp. 8–22. Crossref, https://...Cloning Platform.” Scientific Reports, vol. 9, no. 1, Springer Science and Business Media LLC, 12 July ...
  2. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

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    Blog Post
    ...discovered such as Kaede and PS-CFP2 (see Table 1). Table 1: Properties of Selected Irreversible Photoactivatable...) by mutating Threonine 203 to Histidine (T203H) (1). wtGFP normally contains a mixed population of neutral...in fluorescence when illuminated with blue light (1). Similar to PA-GFP, scientists later developed red...fixation conditions to preserve cellular structures (0.5-1% osmium tetroxide). These conditions destroy most ...with extraordinary molecular detail.   References 1.Patterson, George H., and Jennifer Lippincott-Schwartz...is believing." Annu. Rev. Biomed. Eng. 10 (2008): 1-38. PubMed PMID:18647110. Additional Resources on ...16980368. PubMed Central PMCID:PMC1635685. 12.Paez-Segala, Maria G., et al. "Fixation-resistant photoactivatable...
  3. A Needle in a Base-Stack: Cas9 Structural Biology

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    Blog Post
    ...10.1038/s41586-022-04470-1 Cofsky, J. C., Soczek, K. M., Knott, G. J., Nogales, E., & Doudna, J. A. (2022... basic parts of the Cas9 enzyme.   Figure 1: A cartoon depiction of Cas9’s two major lobes, REC...the CRISPR system (Nishimasu et al., 2014). Table 1. Summary of Cas9 domains, the lobe each domain belongs...state (PDB ID 4CMP) with domains colored as in Figure 1. HNH, red; RuvC, orange; CTD, yellow; REC lobe, light... on itself at the bottom of the image. Stem loops 1 and 2 extend horizontally across both lobes. The guide...outside of the protein, spanning both lobes. Stem loop 1, nestled between the REC and CTD domains, is required...Within an interior cavity, Cas9 grips nucleotides 1-10 of the guide RNA, prearranged for base pairing ...
  4. Bacterial Expression Systems

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    Collection
    ...expression inducible by red light. pCph8 50552 pLtetO-1 Anhydrotetracycline Jeffrey Tabor Anhydrotetracycline...Plasmids placO with lambda-C1 operator Beta-galactosidase Ann Hochschild Bacterial two-hybrid assay using...Plasmids Sequence chosen by researcher Beta-galactosidase Keith Joung Transcription factor testing: Kit...
  5. Optogenetics + CRISPR, Using Light to Control Genome Editing

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    Blog Post
    ...from the fungal photoreceptor, Vivid (VVD, N. crassa) (Kawano et al., 2015). Nicknamed paCas9-1 and consisting...2 (CRY2) and calcium and integrin-binding protein 1 (CIB1) proteins. The goal of both groups was to create... the Sata lab is composed of two fusion proteins: 1) the genomic anchor - an inactive, dead Cas9 protein...combination. The optimized LACE system consisted of: 1) CIBN-dCas9-CIBN, where CIBN is the N-terminal fragment...fold-induction of Cas9 activity (16.4-fold). This paCas9-1 light-inducible system was able to recognize the same...flCas9). When triggered by blue light (470nm), paCas9-1 induced indel mutations via NHEJ (frequency of 20.5%...background activity of the system by modifying paCas9-1 using nMagC714 instead of nMagHigh1-C714, generating...
  6. Six Spooky Science Stories and Halloween at Addgene

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    Blog Post
    ...Molecular and cellular endocrinology 215.1-2 (2004): 1-10. PubMed PMID: 15026169. Soo, Rochelle M., et al...point where the temperature and humidity favors fungal growth. The ants bites down and locks their jaws...its muscles atrophy. After the ant’s death, the fungal fruiting bodies being to sprout out of the ant’...
  7. PITChing MMEJ as an Alternative Route for Gene Editing

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    Blog Post
    ...homologies. Abbreviated protocol for PITCh Step 1: Generate microhomologies in the PITCh vector ~20...editing possibilities MMEJ can enable. References 1. Sakuma, Tatsushi, et al. (2016).  “MMEJ-assisted ...CRISPR-Cas9 with the PITCh systems.” Nat Protoc. 11(1): 118-33. PMID: 26678082. Find the plasmids from ...microhomology-mediated end joining in Aspergillus fumigatus.” Fungal Genet Biol. 86: 47-57. PMID: 26701308. Additional...
  8. With an Eye Towards the Future, We Look Back at the March for Science

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    Blog Post
    ...impartial. The best science happens when scientists have 1) the courage to make mistakes and 2) the integrity...of what I saw are that we, as a society, need to: 1) use more citations for out data so our sources are... before.  These attacks on science ultimately galvanized scientists to rally in Ottawa to protest the ...AL, USA 33.5207°N 86.8025°W - Jonathan Aguilar Galileo wrote, “now you would not hide behind these two... large one” (http://oll.libertyfund.org/titles/galilei-dialogues-concerning-two-new-sciences). This is...
  9. Tips for arabidopsis transformation

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    Blog Post
    ...with a single insertion because it will segregate 3:1 in the T2 generation. You also have no control over... transgenic plants in the process.     References 1. Emami, S., Yee, M. and Dinneny, J. R. (2013) ‘A robust...transformation’, Plant Methods. BioMed Central, 2(1), p. 19. doi: 10.1186/1746-4811-2-19. PubMed PMID:... as anthocyanin production, or disease, such as fungal growth. Healthy plants produce lots of seeds. More...
  10. Getting the Most from Your Lentiviral Transduction

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    Blog Post
    ...Check out Addgene's New Viral Service! References 1. Hay, R.J., Macy, M.L. & Chen, T.R. “Mycoplasma infection...contaminations.” Methods in Molecular Biology 946 (2013). 1-13. Pubmed PMID: 23179822. 5. Segura, M.M., Kamen,...Production, concentration and titration of pseudotyped HIV-1-based lentiviral vectors."Nature protocols 4.4 (2009...Seye, A.K., Majdoul, S., Martin, S., Merten, O.W., Galy, A., Fenard, D. ”Influence of mildly acidic pH conditions...
  11. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

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    Blog Post
    ...linker (figure 1). In fact, for several FRET biosensors (yellow cameleon 3.60, EPAC, and Galphai), the C-terminus...fluorescent protein are relatively close together (figure 1). Where should the fluorescent protein be inserted...fluorescent protein database." Nature methods (2019): 1. PubMed PMID: 30886412. Mastop, Marieke, et al. "A...
  12. CRISPRainbow and Genome Visualization

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    Blog Post
    ...all the colors of the CRISPRainbow. Figure 1: CRISPRainbow was used to track the localization of...is available as a kit from Addgene.   References 1. Chen, Baohui, et al. “Dynamic Imaging of Genomic ...b. when a gRNA binding a non-mammalian sequence (GAL4) was supplied. In addition to labeling repetitive...
  13. CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems

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    Blog Post
    ...cleavage (Harrington et al., 2017). Figure 1: Anti-CRISPR proteins (Acr's) can block CRISPR activity... ways to anti-CRISPR proteins in your experiments 1. Reduce off-target effects Prolonged Cas activity ... Jiang F, Liu J-J, Bray NL, Rauch BJ, Baik SH, Nogales E, Bondy-Denomy J, Corn JE, Doudna JA (2017) Disabling...
  14. AAV Purification by Iodixanol Gradient Ultracentrifugation

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    Protocol
    ...Pluronic-F68 NaCl MgCl 2 KCl Centrifugal filter units (MWCO 100 kDa) Reagent Preparation 1 M NaCl/PBS-MK buffer...gradient for AAV purification. Workflow Timeline Day 1: Purify Day 2: Buffer exchange and concentration Note...of NaCl, 26.3 mg of MgCl 2 and 14.91 mg of KCl in 1× PBS in a final volume of 100 mL. Sterilize by passing...Dissolve 26.3 mg of MgCl 2 , and 14.91 mg of KCl in 1× PBS in a final volume of 100 mL. Sterilize by passing... step: mix 4.5 mL of 60% iodixanol and 13.5 mL of 1 M NaCl/PBS-MK buffer 25% iodixanol step: mix 5 mL ...Hamilton needle, taking care to avoid bubbles (Figure 1). 8 mL of 15% iodixanol step 5 mL of 25% iodixanol...disturb the gradient!** Collect Fractions Option #1 Prepare a row of roughly 20 open 1.5 mL microcentrifuge...
  15. 22 Hot Plasmid Technologies from 2014

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    ...expression. Brown et al., Genesis 2014 Jan;52(1):39-48. APEX2 for proteomic mapping and electron...engineering cells that lack release factor one (RF-1; Bacterial strain EcAR7) and minimizing the set of... of human mitogen-activated ERK activating kinase 1 (MEK1) with either one or two phosphoserine residues...comprised of three sets of cloning vectors (Level 0, 1, or 2) which can be utilized in three successive assembly... vectors are directionally assembled into a Level 1 vector creating a single transcriptional unit (Ex:...coding region, and terminator). Next, up to six Level 1 modules can be similarly assembled into a Level 2 ...vectors to allow for additional iterations of Level 1 assembly if necessary. Combining multiple Level 2 ...
  16. Antibiotic Resistance: An Old Solution but a New Problem

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    Blog Post
    ... to the development of resistance include (Figure 1): Over-prescription of antibiotics (for example, ... communication, and public health.     References 1. O'Neill, J. "Tackling drug-resistant infections globally... used to describe anti-parasitic drugs and anti-fungal drugs, because ‘antibiotic’ merely means that the...
  17. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

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    Blog Post
    ...know that most cephalopods die after they lay their 1 clutch of eggs? Propagation is thus quite difficult...organism blog posts: Five Popular Model Organisms, Part 1 Five Popular Model Organisms, Part 2 ...next project. Gymnotiformes and Mormyridae (Jason Gallant) Weakly electric fish are excellent systems to ...
  18. Changing Labor Laws Bring Increased Postdoc Wages

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    Blog Post
    ...$47,476 and the date for implementation was set for Dec 1 2016. In order to be exempted from the need to pay... these institutions (populations potentially from 1 to 5761, according to the NSF data) and therefore ...the time of writing responses to requests for the legal justification of this have not been received. Future...
Showing: 61 - 80 of 101 results