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  2. Synthetic Biology - Algal

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  3. Synthetic Biology - Bacterial

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  4. Synthetic Biology - Fungal

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  5. Synthetic Biology - Mammalian

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  6. Synthetic Biology - Plant

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  7. Synthetic Biology - Worm

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  8. Synthetic Biology - Yeast

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Browse...

  9. Synthetic Biology - Strains

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Cloning...

  12. Synthetic Biology - Metabolism

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    ...SynBio Resources SynBio Home Browse All SynBio Assembly Standards SynBio Blog Genome Engineering Cloning...

  15. MAPK Plasmids

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    ...research labs from around the globe, Addgene has assembled a MAPK plasmid collection for community. If you...

  17. CRISPR Plasmids - Cascade-Cas3

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    ...Design Tools CRISPR Blog Posts Cas3 is a unique member of the CRISPR family. After nicking the target ...

  18. AAV Molecular Tools

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    ...Syn-driven, Cre-dependent Cre-dependent expression of membrane-bound GFP and synaptophysin-mRuby for labeling...

  19. Troubleshooting and Optimizing a Western Blot

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    ... your membrane, run a double-membrane transfer with a psi membrane stacked behind the p membrane. If your...through the p membrane into the psi membrane, that’s a good indication that the p membrane pores are too...marked on the membrane (1) using the gel as a guide. The gel is then removed from the membrane (2) and the...troubleshoot.   Before you start… Mark your membrane! Membranes look the same from both sides, so it’s quite...appropriately sensitive. If using a PVDF membrane, you can dry the membrane, wet it with 20% methanol, and place...completely through the membrane or larger proteins not transferring completely onto the membrane. If you’re not...completely through your membrane to the other side), you can check by using two membranes during your transfer...

  20. Antibodies 101: Stripping and Reprobing Western Blots

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    ... your gel and membrane transfer as normal. Immediately after transfer, dry the membrane to maximize protein...manufacturer’s instructions for the membrane you are using. Dry nitrocellulose membranes are brittle, so proceed ... as normal! Stripping your membrane Alright, so you’ve dried your membrane and returned it to buffer, ...depend on your specific experiment. Remember, stripping your membrane will remove some of your sample —and...’ll want to: Rinse the membrane in water or fresh buffer. Cover the membrane in stripping solution and...a fume hood. Rinse the membrane in water or fresh buffer. Cover the membrane in stripping solution and...you need to start a whole new blot? Never fear: membrane stripping is here! Rather than start over, you...

  21. Human Germline Editing Using CRISPR

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    ...off-target editing sites in the embryos, as well as whole exome sequencing of embryo derived-ES cells.They also...editing between iPS cells and embryos make a case for conducting research in embryos should our society decide...sequencing to a small percentage of edited embryos. Since the embryos produced were not being used to establish...-free embryos to only 60%? Unfortunately, given the differences between CRISPR repair in embryos and iPS...this paper. Any hint of CRISPR editing in human embryos has been met with a storm of media coverage. But... replication. Indeed, they observed that 41/42 embryos were non-mosaic at 3 days post fertilization. Since...MYBPC3 allele. Interestingly, they found that the embryos underwent repair not from the single-stranded oligonucleotide...

  22. Technique: Probe Phage Genomes for Host Binding Proteins

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    ...nitrocellulose membranes and exposed to IPTG in order to induce protein expression. Cells on the membranes will ...orientation of each membrane on its plate before moving on. Then peel each membrane off the plate (saving...high salt.  To probe membranes with target bacterial cells, wash your membranes with PBST to remove salt... on the membrane to bind their target cells, pulling them out of solution. Wash your membranes well with... 20 Petri dish-sized circles of nitrocellulose membrane and press each gently down onto a plate of colonies...regrow the lifted colonies overnight), flip the membrane over and place it colony-side up onto a fresh ...plasmid selection. Remove air bubbles between the membrane and the agar using forceps. Several protein induction...

  23. Plasmids 101: Sequence and Ligation Independent Cloning (SLIC)

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    ...multicomponent assembly, as fragments with overlapping sequence homology can be assembled in a unique order...multicomponent assembly have 5′ or 3′ sequence homology to each other, they may be assembled incorrectly.... one option is to perform a hierarchical assembly, assembling fragments in multiple steps to avoid using...Golden Gate assembly, may also be beneficial. SLIC is most often compared to Gibson assembly, a cloning...required for Gibson assembly. SLIC is a standardized method for multi-fragment DNA assembly, and its low cost... by Mary Gearing in December 2015 and was updated by Emily P. Bentley in September 2024.  References ... cheap, standardized, and rapid multi-part DNA assembly method. Read on to learn how to use it in your...

  24. CRISPR 101: Multiplex Expression of gRNAs

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    ...to use some assembly methods such as Golden Gate or Gibson assembly. Golden Gate Assembly of gRNAs Golden...Golden Gate/Gibson Assembly Multiplexing Plasmids: These plasmids allow you to assemble 2-4 gRNAs through...gRNAs. PTGs are assembled into a wt Cas9-containing vector using Golden Gate assembly, and up to 8 gRNAs...Multiplex Plasmid: Two gRNAs can be assembled using Gibson Assembly or SLIC cloning. gRNAs are expressed...Bullock lab, and gRNAs can be inserted using Gibson Assembly or SLIC cloning methods. A BsaI-based E. coli ... multiplexed gRNAs with Golden Gate and Gibson assembly methods If you want to scale up the number of ...Golden Gate Assembly uses Type IIS restriction enzymes, which cleave outside of their recognition sequence...

  25. Plasmids 101: Golden Gate Cloning

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    ...can be used to assemble multiple fragments - up to 10 fragments are commonly assembled in a single reaction... Gibson assembly require 20-40 bp of homology at the ends of DNA fragments to specify assembly order, ...sequence homology cannot be assembled using this method, but can be assembled with Golden Gate. The popular...acids, but Golden Gate assembly can be designed to be scarless. Golden Gate assembly is also less expensive...recognition sequence, they can be customized to direct assembly of DNA fragments. When designed correctly, the...sites with complementary overhangs that direct assembly of the final ligation product. As shown below,...higher number of potential clones. Golden Gate assembly has a few advantages over other cloning methods...

  26. Plasmids 101: Modular Cloning

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    ...organization scheme for multi-part DNA assembly. Simply put, it assembles individual DNA components into larger...MoClo-compatible vectors. Level 1: Assembly of multiple Level 0 parts into TUs. Level 2: Assembly of multiple Level 1...IIS restriction enzyme and a ligase are used to assemble multiple DNA fragments together in a one-tube ... Fig 1. MoClo enables individual parts to be assembled into larger functional units which are transcribed... Understanding how individual parts can be assembled into TUs is key to understanding MoClo. By a similar...Construction of multigene constructs, through multi-TU assembly,happens via three steps: Level 0: Cloning of ...multigene constructs. Figure 2: The three assembly levels of MoClo. Image courtesy of Rob Hurt. ...

  27. AAV Packaged on Request

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    ...start getting results from your AAV experiments, remember to share your protocols and results through Addgene...

  28. 22 Hot Plasmid Technologies from 2014

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    ...modules. In the first assembly step, compatible Level 0 vectors are directionally assembled into a Level 1 vector...of Level 1 assembly if necessary. Combining multiple Level 2 vectors in the final assembly step permits...structural and spectral properties of two of the family members – one with an unprecedentedly-high brightness, ...relies on several observations: Rapamycin is a membrane-permeable pharmacological agent that can rapidly...extraneous proteins bound to its outer mitochondrial membrane. Sequestration is accomplished by knocking down...protein with a FKBP domain and a mitochondrial outer membrane protein with a FRB domain (MitoTRAP). Rapamycin...., J Cell Sci 2013 May 1;126(Pt 9):2102-13. Assemble multiple component plasmids from building blocks...

  29. Starter guide to induced pluripotent stem cells (iPSCs) part 1:  A renaissance in regenerative medicine

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    ... cells in an organism, including the embryonic and extraembryonic cell types. In mammalian development...generation does not require embryos, their use skirts issues surrounding the use of embryos in research. With all...Beckmann, and W. Wurfel, Non-embryo-destructive Extraction of Pluripotent Embryonic Stem Cells: Implications...-assisted derivation of human embryonic stem cell lines from IVF embryos after preimplantation genetic...totipotent cells. An example of pluripotent cells is embryonic stem cells (ESCs), which I discuss in detail below...into two broad types according to their source: Embryonic stem cells ESCs are pluripotent stem cells that... abnormal and/or supernumerary preimplantation embryos that are produced during in vitro fertilization...

  30. Is this the right place for me? 8 tactics for choosing a lab

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    ... PI helps lab members determine project "ownership" and author order PI lets lab members fight it out ...long list of written questions for the PI and lab members.  Make coffee or beer dates to talk to as many ... informative way of gathering data. Former lab members can give open, revealing information about the ...and lab head. While it’s good to talk to new lab members too, they may not have had experience writing, ...career opportunities with the lab head. Former lab members can give you a fuller picture. Consider talking...try to attend a lab meeting. Observe how the lab members treat one another (especially those low on the ...will work for you, ask questions like: Do lab members feel there are enough projects to go around? What...

  31. Advancing Biology with Zebrafish: Genetic Tools for Developmental Studies and More

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    ...zebrafish embryo develops outside of the mother, making them ideal for studying vertebrate embryogenesis. To...investigations into environmental pollutants and health, embryo growth, brain function, and disease development...illustrate some of the reasons that zebrafish have been embraced as a model organism, I’ll outline a few of the...quality genome sequence A high-quality sequence assembly of the zebrafish genome was published in 2013,... when and where genes are active in developing embryos are available. Additional analysis tools have been...head, eyes, and tail. Compared to the opaque mouse embryo, where similar processes occur over days inside...the zebrafish is an ideal system to observe embryogenesis live. The origins, divisions, and movements ...

  32. Technical Design of a Western Blot

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    ...method. Membranes The two membrane options are PVDF and nitrocellulose. PVDF is a sturdy membrane that can...low-background PVDF membrane, it also has higher background noise than nitrocellulose membranes. Pro tip! You...visualize proteins on a PVDF membrane without staining; simply wet your membrane with 20% methanol and place...designing the experiment. What detection method? What membrane? What should you block with? It can be so overwhelming... location of your protein. Proteins located in membrane-bound subcompartments, like the mitochondria or... protein is difficult to solubilize, such as a membrane-bound protein. There are many different lysis ...the transfer: you’ll need to pre-wet most PVDF membranes before the transfer and allow them to dry afterwards...

  33. Viral Vectors

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    ...brain in mice and see if they are better able to remember how to solve a maze. These engineered viral genomes...

  34. Transferable Skills Guide: Teamwork

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    ... Team, but I’m also an emeritus member of the Scientist Team, a member-by-association of the Development...at Addgene, an unofficial title that I happily embrace (and admittedly, I may have started that nickname...update how we make and distribute kits, I helped assemble a crack team of Addgenies that includes: Michelle...control efforts with depositors; Gizela, the lab member who knows how the physical kits are made and shipped...months, or even a few weeks. The important thing to remember is that every team should have a goal, or at the...and providing technical customer service. Team members are highly trained, and though there are necessary...particular function. Project team A Project Team is assembled to complete a series of tasks with precisely defined...

  35. Deep Dive: Fixing and Permeabilizing for Immunofluorescence

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    ...and membrane integrity (Fig. 2). For example, saponin interacts with cholesterol in cell membranes and...can lose membrane-associated proteins, but it is better at permeabilizing organellar membranes. Created... work is to try it. As you embark on your next IF adventure, just remember that even though these early...proteins that need a little help crossing cell membranes as they are not able to diffuse across natively...Permeabilization essentially punches holes in the cell membranes of your sample to allow antibodies better access...target is already on the extracellular side of the membrane, then this step may not be necessary. In fact,...and leaves many membrane-associated proteins in place. In contrast, Triton X-100 and Tween-20 are examples...

  36. Open Enzyme Collection

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    ...Enzyme parts have C/E overhangs for Golden Gate assembly. Plasmids Explore the collection and order individual...

  37. Antibodies 101: The Basics of Western Blotting

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    ...Immobilizing proteins on a membrane Once separated, the proteins are immobilized onto a membrane, usually composed...sticky areas on the membrane will bind to the proteins in the buffer, blocking the membrane  from binding to...are: (1) separated by size, (2) transferred to a membrane, and  (3) detected using antibodies.   ...protein is separated in a gel, transferred to a membrane, stained with antibodies, and finally visualized... and high binding capacity. In addition, PVDF membranes can be repeatedly stripped of an antibody and ...follow the same general principle where the gel and membrane are “sandwiched” together with blotting paper ...proteins to migrate out of the gel and attach to the membrane.  In a wet transfer system the sandwich is completely...

  38. MXS Chaining

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    ...2008 Gibson Cloning Gibson assembly method Single reaction, can assemble large DNA sequences, no restriction...derived from the tyrosine-protein kinase Lyn) Membranes 3 mCherry 587nm/ 610 nm human β-Actin Actin ...same multiple cloning site (MCS). Modules are assembled one at a time by standard restriction enzyme digestion...upon ligation. As a result, once two modules are assembled next to each other, a third module cannot be placed...high-throughput cloning strategies available for assembling these modular types of constructs, and different... Golden Gate Type II restriction enzymes Can assemble up to 10 modules in a single step. Through iteration...restriction enzyme-based). Well suited for the modular assembly of highly similar or repetitive sequences. Intermediate...

  39. 27 Hot Plasmids from 2016

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    ...introduced a new assembly cloning platform called GMAP (Gibson assembly-based modular assembly platform). GMAP...Plasmids from:  March (Q1) | June (Q2) | September 2016 (Q3) | December 2016 (Q3) MARCH 2016Enhancer activity...GMAP is based on the Gibson Assembly method, which allows for easy assembly of DNA fragments by utilizing...streamlines the assembly of TALE repeats into a single-tube, 3 day process by utilizing pre-assembled trimers ...literature searching, DNA synthesis, and plasmid assembly. Luckily, researchers from Douglas Densmore’s ...Genomics. 2015. PubMed PMID: 26165496 GMAP - A new assembly platform for generating both simple and complex...overlaps). To expand the capabilities of Gibson assembly and make a more modular platform, the Jacks lab...

  40. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

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    ...only a small proportion were found on the plasma membrane (top panel in Fig. 1). Of course, this was problematic...DREADD receptors need to be located on the plasma membrane to be activated by the DREADD actuator after it.... Although we found a larger proportion on the membrane in mice neurons, most of them were still cytoplasmic...limited expression of hM4Di‐mCherry at the plasma membrane in monkey neurons, we next hypothesized that a...improve the transport of this DREADD to the plasma membrane. The haemagglutinin (HA) tag is a small 9 amino...resulted in abundant expression of hM4Di in plasma membranes in both species (bottom panel in Fig. 1). Our ...transgene of interest and its localization in the membrane. The lesson we learned from these studies is that...
Showing: 81 - 120 of 621 results