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  1. Microbiology Resources

    Type
    Collection
    ...deposited tools and resources, or read our guide on assembly standards. Browse Plasmids by Microbe System Plasmids...chromosomes - Endy and Shearwin Labs Ralstonia-GG-Kit : Assembly of Ralstonia solanacearum species complex (Rssc...lipolytica Golden Gate tool kit : Integrative vector assembly of up to three transcription units in the oleaginous...circuit design in E. coli - Freemont Lab MoClo-YTK : Assembly of single and multi-gene constructs for S. cerevisiae...perform your synbio experiment. Synthetic Biology Assembly Standards Guide Bacterial Expression Systems :...
  2. Science Communication Snapshot: DayCon 2015

    Type
    Blog Post
    ...success, a true testament to the commitment of SITN members. SITN and DayCon Currently in its 16th year, Science...one organize a public scientific conference? As a member of the DayCon Executive Board, I was fortunate ...interactive lunch with student presenters and board members enabled attendees to engage in small group discussions...source and available on SITN’s website. 65 audience members gave up a beautiful summer Saturday to learn about...
  3. Quick, Versatile Plant Transgenesis with GreenGate Plasmids

    Type
    Blog Post
    ...time, it was possible to quickly and efficiently assemble a large number of building blocks with just two... the PLoS ONE paper that introduced the kit in December, GreenGate includes the six most frequently used...Plant Transgenesis." PLoS ONE. 8(12): e83043 (20 December 2013). 2. Carola Engler et al. "A One Pot, One...Throughput Capability." PLoS ONE. 3(11): e3647 (5 November 2008).  ...
  4. Easing the Protein Purification Process with pCri

    Type
    Blog Post
    ...contains the MISTIC (membrane-integrating sequence for translation of integral-membrane protein constructs...includes a special feature for difficult-to-purify membrane proteins. pCri vector pCri-13a, designed for use...protein tag. MISTIC drags tagged proteins into the membrane and may improve expression of proteins that natively...
  5. SpyLigase Irreversibly Locks Peptides Together for Efficient Cell Capture

    Type
    Blog Post
    ...wanted to be able to build assemblies through covalent bonds so that the assemblies wouldn’t fall apart, even...advantage of peptide tags for building larger protein assemblies? Howarth: Peptide tags can be very generic; you...wanted to be able to build a highly multivalent assembly connected by covalent bonds, so there were no ...
  6. Choosing a Good Mentor for Scientists

    Type
    Blog Post
    ...about asking hard questions. Talk to as many lab members as possible. Try to get them in a setting out of...websites, ResearchGate and LinkedIn to find past lab members. Most scientists love to talk about their past ... lab meeting. Spend some time hanging out with members of the lab. It is a warning sign if the PI does...in Mentoring" Don’t ignore warning signs If lab members, neighbors or alumni give you information about...
  7. COVID-19 Resources

    Type
    Collection
    ...envelope protein, E; nucleocapsid protein, N; and membrane protein, M), including plasmids for protein production...Anderson et al., 2020). BSG plasmids - (CD147), transmembrane glycoprotein of the immunoglobulin superfamily...proteolysis of SARS-CoV Spike protein, activating its membrane fusion function (Bosch et al., 2008). TACE plasmids...Llamas Required - Synthetic Nanobodies Against Membrane Proteins Return to top Pooled Libraries Pooled... in a new window) Content last reviewed on 26 September 2025. Do you have suggestions for other plasmids...
  8. Pouring LB Agar Plates

    Type
    Protocol
    ...with your antibiotic of interest. Last Upload: September 14, 2016 Protocol Video Before you begin this ...
  9. Antibodies 101: Epitope Availability

    Type
    Blog Post
    ...as part of performing a specific function. A transmembrane protein that is being used as a marker for flow...cell, instead of when it is attached to a cell membrane.  Picking the Right Antibody  It can get even ...capture the protein bound to anything? Is it a transmembrane protein, or is it know to translocate or fold...doing or changing in different conditions. Just remember to keep good records on which antibodies are suitable...
  10. Behind-the-scenes of the Isolation of the Thermostable IgnaviCas9 From a Yellowstone Hot Spring

    Type
    Blog Post
    ...following year. Geoff Schiebinger, another Quake Lab member joined for half of the trip. Preparations ahead...sure the vehicle battery didn't run down. In September we arrived in YNP just as the weather was starting...Stephanie Schmidt not only produced partially assembled genomes, but also led to the discovery of IgnaviCas9...complexity with higher throughput and rigorous assembly. There, they found a CRISPR array in the resulting...
  11. Improving Transduction Efficiency with Exosome AAVs

    Type
    Blog Post
    ...the widely used 293T. During vector production, assembled AAV vector particles accumulate inside the producer... are often found with cellular exosomes, small membrane vesicles or microvesicles (approx. 40 - 150 nm... diameter) that are secreted from the cellular membrane into the culture medium. AAV particles are either...found that the association of AAV particles with membrane vesicles protects them from antibody recognition...
  12. Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**

    Type
    Blog Post
    ...by incubating embryos in a MG-2I solution, or injecting adult fish with the dye. Embryos exposed to just...experiments with MG-2I-dL5** were performed with embryos and adult fish. Zebrafish are an ideal model organism...organism for these experiments because developing embryos are transparent, so it’s easy to watch development...
  13. Addgene Welcomes John Doench to the Advisory Board

    Type
    Blog Post
    ...The Addgene Advisory Board consists of prominent members of the bioscience and tech transfer communities...apply to graduate school at MIT. Doench excitedly remembers: “When I came to MIT to interview, part of the...process was several short talks by current faculty members and it just blew me away….  I have to come here...Find CRISPR pooled libraries Learn about other members of the Addgene Advisory Board Additional Resources...
  14. Management for Scientists: Delegating is Key

    Type
    Blog Post
    ...ideas, initiative and creative thinking. The team members will be more invested in the projects and outcomes... tasks are distributed appropriately. If team members have opportunities to develop and stretch then ...then facilitate appropriate communication between members of the team to ensure that no component of the ...management style. Recipes for delegation success Remember that there are always things that the manager ...
  15. Finding and Joining Your Dream Lab

    Type
    Blog Post
    ... hires initially based on those who notice and embrace the “odd and extreme openness” of the lab (i.e ...interests, and spends one-on-one time with the current members to share short-term goals and chat about awesome...questions for a candidate to ask lab heads, lab members and lab neighbors during the interview process....alumni taken diverse career paths? Ask other lab members how the advisor treats such inquiries. If you know...
  16. Developing a cold tolerant E. coli using specialized chaperones

    Type
    Blog Post
    ...were designed by our team member Kallol Mozumdar. Sreepadmanabh M is a member of the team from IISER Bhopal...This post was contributed by Sreepadmanabh M, a member of the iGEM team from IISER Bhopal. Following up...in extensive outreach programs to encourage and embolden the spirit of scientific innovation amongst school...
  17. Viral Vectors 101: Viral Vector Elements

    Type
    Blog Post
    ...pseudotyped to alter infectivity. Next, the virus must assemble and have appropriate factors displayed on the ...nucleocapsid viral components needed for viral packaging, assembly, and display. Pol, the last component, contains...structural capsid protein that helps with virion assembly and particle release from late endosomes when ...viruses discussed. LXs/Iva2 are primarily capsid assembly proteins required for packaging of the virus into...
  18. Sharing is Caring: But How to Distribute Open Hardware?

    Type
    Blog Post
    ...material (BOM) of an assembly, the feasibility of manufacturing, and subsequent assembly can be difficult ... a similar way to the biological protocol, and assembly designs based around the use of commercially available...developed techniques are the key enablers for making assemblies open-source. The sharing of digital representations...
  19. Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification

    Type
    Blog Post
    ...let the team detect its co-localization with a membrane-localized mCherry or GFP protein. With this system...bind, it co-localizes with its target at the cell membrane and when the OptoNB can’t bind, it localizes to...proliferation and differentiation.  Since Ras is a membrane localized GTPase, the team fused a mCherry OptoNB...OptoNB-SOS fusion protein in cells that expressed membrane-localized mCherry. With darkness, SOS binds Ras...
  20. Supporting Rare Disease Research with the 2020 BeHEARD Awards

    Type
    Blog Post
    ...interested in TS when I was a newly independent faculty member studying sex differences in thoracic aortic disease...emphasis on oligomerization, signalling complex assembly, and localization to the nucleus,” says Dr. Terry...consist of many parts that work together on the cell membrane. Germline mutations in one of these parts, the...to Addgene. Congratulations Terry Hébert! Members of Terry Hébert's lab. Additional Resources ...
  21. Hot Plasmids - March 2020 - base editors, GEVI, MoClo, and optogenetics

    Type
    Blog Post
    ...-opsin GEVIs. With an increase in the neuron’s membrane potential, Ace absorbance increases and results...biologists to use Type IIS restriction sites to easily assemble multiple DNA fragments. This system has been used... for greater reproducibility as scientists can assemble parts from different labs and experimental systems...biology tools for cyanobacteria. Figure 3: Assembly of plasmids using the Cyanogate Kit and subsequent...
  22. Transferable Skills Guide: Public Speaking

    Type
    Blog Post
    ...quickly string together all the words that I could remember related to this paper and/or biology in general...perspective. Most people won't notice, or won't remember and those who do are very likely to be sympathetic... diving board charades, I doubt anyone but me remembers any of the incidents above–and the dumpster noises...if it doesn’t go perfectly,” can help. (And do remember to breathe!)   Public speaking as a transferable...
  23. Uncertainty about Labor Law Brings More Uncertainty to Postdoc Wages

    Type
    Blog Post
    ..., executive director of Future of Research. On December 1st 2016, many postdocs working more than 40 hours...recently in a paper published in F1000Research on November 2016. Due to the nature of the postdoc position...been made publicly available (below). However, on November 22nd a preliminary injunction against the FLSA...for their postdoctoral salary information as of December 1st. Salary inconsistencies across geographical...
  24. Plasmid-based Recombinant Monoclonal Antibodies: What They Are and Why You Should Be Excited About Them

    Type
    Blog Post
    ...If you were born before 1985, you might remember going to the store and buying CDs when you wanted to...antibody and when translated into protein will assemble into a fully functional antibody. These antibodies...antibody are encoded in a plasmid. (Right) An assembled antibody protein binds an antigen. Image from ...L, Xin L, Shan B, Li M (2016) Complete De Novo Assembly of Monoclonal Antibody Sequences. Sci Rep 6: ....
  25. Mouse Modeling, Part 2: Breeding and Crossing Mice

    Type
    Blog Post
    ... to introduce genetic modifications into mouse embryos. But once you generate a growing colony of genetically... as more mutations are introduced into a single embryo, the likelihood that a mouse will end up with the... are homozygous for all of your desired genes. Remember Punnett squares from high school biology? They...transgenic mice that can impact reproduction include embryonic lethality, a short lifespan, or infertility and...
  26. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

    Type
    Blog Post
    ...multimerize and spontaneously assemble into particles at the cell membrane. Mature Nanoblades then bud ...CRISPR to multiple types of targets: primary cells, embryos, and animals. Nanoblades can also carry different... where they can then fuse with the target cell membrane, and transfer their CRISPR cargo into the zygote...
  27. Zinc Finger Consortium Reagents

    Type
    Collection
    ...method Modular Assembly Engineering Reagents - Engineer zinc finger arrays via Modular Assembly method Nuclease...finger proteins deposited by Zinc Finger Consortium members like the Joung Lab, Voytas Lab, and Wolfe Lab Plasmid... engineered zinc finger technology. Consortium members Keith Joung and Daniel Voytas have deposited at...
  28. Google Forums Round Up: First Impressions of NgAgo

    Type
    Blog Post
    ...Update (November 18, 2016): Researchers from a variety of institutions recently reported their inability...NgAgo is in the spotlight and take a moment to remember that NgAgo has only been available for genome ...from a plasmid in cells. Additionally, in vitro assembly of NgAgo/ssDNA requires incubation at 55 °C - ...conveniently transfect/inject cells with in vitro preassembled Cas9/gRNA complexes or with guide RNA- and Cas9...
  29. Optogenetics Plasmid Collection

    Type
    Collection
    ...plasmids encode for microbial opsins, which are membrane channels and pores derived from algae and archaebacteria...ChR2) from Chlamydomonas reinhardtii . ChR2 is a membrane channel that opens in response to blue light and...properties as well as improve the expression and membrane targeting in host cells. Other microbial opsins...Chemogenetics vs. Optogenetics Content last reviewed: 25 September 2025 Do you have suggestions for other plasmids...
  30. Resolute Plasmid Collection

    Type
    Collection
    ...human genome with approximately 450 identified members. Many SLCs have mutations associated with disease... window) is a public-private partnership of 13 members from industry and academia financed by the Innovative...generate antibody/ high-affinity ligands. Data is embedded in an integrated knowledgebase that features, ...Superti-Furga CRISPR knockout library targeting human transmembrane transporters. Feedback Please send your feedback...
  31. Lab to Office Culture Shock

    Type
    Blog Post
    ... them may just take some getting used to. Just remember: change is good. You can experience a real onboarding...could dread these interactions, but you could also embrace them. Talking about science to non-scientists can...often are the work. Will Arnold, one of the newer members of our Scientist team says, “a well-run meeting...that much longer. If you approach the transition embracing the opportunity for growth, you can tap into curiosity...
  32. How to Write a Scientific Review Article

    Type
    Blog Post
    ...hopefully this post will help you get things moving - remember you're becoming an expert in your field and are...while writing, because it helps you later on to remember where you read particular studies or experiments... For example, we summarized how frequently each member of a class of proteins was mutated, as reported... a review article and not your life’s work: so remember that done is better than perfect. Good luck! ...
  33. Mesothelioma - Causes, Symptoms, and Treatment

    Type
    Blog Post
    ...becomes embedded due to the small, hook-like shape of asbestos fibers. Over time these embedded asbestos...different ways. For example, a new drug known as pembrolizumab (Keytruda) causes T-cells to more easily recognize... and cause the destruction of cancer cells. Pembrolizumab has shown some great early success in treating...
  34. CRISPR Activation: A Practical Guide

    Type
    Blog Post
    ...done by creating a split dCas9 protein that can reassemble when exposed to specific UV wavelengths or chemicals...Inspired Engineering.     Alejandro (Alex) Chavez is a member of the Addgene Scientific Advisory Board. His laboratory...Mammalian Protein Complex Structure, Function, and Membership Using Genome-Scale Fitness Screens. Cell Systems...Chem Biol 11:198–200 . https://doi.org/10.1038/nchembio.1753 Tanenbaum ME, Gilbert LA, Qi LS, Weissman...
  35. Tips for CRISPR Gene Editing in Mice

    Type
    Blog Post
    ...validating its efficacy in vitro, and using it in mouse embryos to generate gene modified mouse lines. Hopefully...mammalian cells, it’s time to use them in mouse embryos. When researchers first started using CRISPR/Cas9...It takes roughly 19 days for the injected mouse embryos to develop. Once they are born, it’s time to screen...screen them for your desired edit. Good news! Remember the primers you designed to generate your pCAG-...
  36. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

    Type
    Blog Post
    ...excellent choice for fusions with integral membrane proteins and membrane associated proteins (i.e. GPI-anchored...including the secretory pathway (Figure 2), the inner membrane space of mitochondria and chloroplasts, the extracellular...mapping functional domains of Drosophila hsp 70." The EMBO journal 3.13 (1984): 3087. Pubmed PMID: 6526011....
  37. Malate Dehydrogenase CUREs Community Collection

    Type
    Collection
    ...community. MCC members gain access to mentors, virtual and local professional development, membership to a local...research opportunities to their students and other members of the MCC community. They support educators interested... CUREs, and opportunities to mentor future MCC members. Find a regional hub (Link opens in a new window...
  38. Antibodies 101: Normalization and Loading Controls for Western Blots

    Type
    Blog Post
    ... out errors like uneven pipetting or irregular membrane transfer. Figure 1: A loading control is...directly correlate to protein abundance on your membrane, which would be directly reported by band intensity...protein measurements are taken on the same gel or membrane (depending on your approach) as your final blot...of the β-actin (B) or total protein (C) on the membrane versus the amount of protein loaded on the gel...
  39. Multicolor Animals: Using Fluorescent Proteins to Understand Single Cell Behavior

    Type
    Blog Post
    ... the fluorophores RFP (red), YFP (yellow), and membrane-tethered CFP (cyan). Brainbow 1.1 adds OFP (orange...control of Flp recombinase. The XFPs in Flybow are membrane-tethered, making this system useful for visualization... by injecting a CMV-Brainbow construct at the embryonic stage. This technique could be used to target ...cells that randomly express either nuclear GFP, membrane CFP, cytoplasmic YFP, or cytoplasmic RFP in a ...
  40. 10 Steps to a Perfect Science Talk

    Type
    Blog Post
    ...introverted ), and networking (how to get people to remember you). What better way to accomplish all of these...story We are biologically programmed to listen and remember better when we hear material delivered in the ... presentation faux pas, you are more likely to remember the point.   What makes a story? A story is a ... label all graphs and data professionally). Do remember the fine points of visual aids. Here’s a great...
  41. Viral Vectors 101: Optogenetic Tools

    Type
    Blog Post
    ... charged ions to rapidly pass through the cell membrane and initiate an action potential - a very useful...and close when exposed to light and change the membrane potential. OptoXRs are modified GPCRs. When exposed...downstream signaling pathways that can change both the membrane potential and a host of other cellular functions...Channelrhodopsin-2, a directly light-gated cation-selective membrane channel. Proceedings of the National Academy of...
  42. Hot Plasmids: Fall 2025

    Type
    Blog Post
    ...astrocytes and neurons to label surface proteins with a membrane-impermeable biotin substrate (Figure 1). Biotinylated...Emily P. Bentley Biomolecular condensates are membraneless liquid "droplets" that can concentrate and sequester...transcription, proliferation of leukemia cells, and assembly of adenovirus particles (Zhang et al., 2025). ...of well-equipped laboratories remains limited. Members of the Stanley Qi Lab set out to address this limitation...
  43. p53 Pathway

    Type
    Collection
    ...DR5 Tumor necrosis factor receptor superfamily, member 10b E2F-1 E2F transcription factor 1 Fas Fas cell...protein 3 KAI CD82 molecule Maspin Serpin family B member 5 MDM2 MDM2 proto-oncogene, E3 ubiquitin protein...nexin, plasminogen activator inhibitor type 1), member 1 PERP TP53 apoptosis effector PIDD p53-induced...G2 arrest mediator candidate Scotin Shisa family member 5 Sestrins SESN1 SESN2 SESN3 Sestrins 1, 2, or ...
  44. Zebrafish Plasmid Collection

    Type
    Collection
    ...developmental biology. With its rapid development (embryogenesis is complete in ~3 days), short generation time...ease of care and breeding, and transparency of the embryo and larvae, it is easy to culture large populations...Project - Access the latest reference sequence assembly for the zebrafish genome. Zebrafish Model Organism...information about when genes are active in developing embryos. zfRegeneration - A database for gene expression...
  45. Ras Pathway

    Type
    Collection
    ...Resources Background Ras is a small GTPase and is a member of the G protein (guanine nucleotide binding protein...Ras signaling cascade that starts at the plasma membrane. Cancer Impact Ras is ubiquitously expressed in...RASSF8 RASSF9 RASSF10 Ras association domain family member RB1 Retinoblastoma 1 RCE1 Ras converting CAAX endopeptidase... in brain RHO RHOA RHOB RHOC Ras homolog family member ROCK ROCK1 ROCK2 Rho associated coiled-coil containing...
  46. 2021 Deck the Lab Winners!

    Type
    Blog Post
    ....twitter.com/DWKWaPs0iY— Xi Chen (@XiChen7889) December 10, 2021   2nd Place: The Winter and the Falcon...pic.twitter.com/rDaEjxTNZX— Heng Chooi (@YitHengChooi) December 4, 2021   3rd Place: O! Beaker Tree Created by...pic.twitter.com/WMb97fpUOI— Sam Mugford (@samtmugford) December 3, 2021   Congratulations to all our winners,...
Showing: 151 - 200 of 642 results