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Showing: 41 - 60 of 473 results
  1. Developing Lab Management Software for Biology

    Type
    Blog Post
    Published
    Aug. 25, 2016, 2:30 p.m.
    ...data for lab procedures. With this data in hand, we can go back and optimize our procedure to make the ... biology is messy. Every single step in a lab procedure can and will fail. Some step failures require ...linear progression directing our techs through the process. The problem? As we said above, any one of these...monumentally difficult without software. Tracking lab procedures also gives you access to hard data about what...definitely be interested to see which part of her procedures are the most failure prone. In an academic lab... Some steps fail “hard”, they reset the whole procedure. Other steps fail “soft” they simply need to be...the whole process work more efficiently. Get on that barcode gravy train Buy a barcode label printer. Buy...
  2. Multiplex Genome Editing with CRISPR-Cpf1

    Type
    Blog Post
    Published
    May 9, 2017, 2:12 p.m.
    ...like Csy4, or the inclusion of processing signals, such at tRNAs, to process the array into functional crRNAs...Cpf1’s ability to process its own pre-crRNA arrays simplifies the crRNA cloning process. For cloning, Zetsche...multiplexing crRNA expression with Cpf1 is that Cpf1 can process its own pre-crRNA arrays. Zetsche et al demonstrate...Transfection, lentivirus, and AAV Cpf1’s ability to process its own pre-crRNA arrays eliminates the need to...expression and sequences that allow for array processing, i.e. tRNAs or Csy4 cleavage sites. This eliminates...mediated cleavage. This reversing would also prevent processing of the crRNA array when expressed in cells, but...leading to expression of a crRNA array that can be processed by Cpf1. Lastly, an AAV vector was used to multiplex...
  3. Expanded Access to Rabies Plasmids

    Type
    Blog Post
    Published
    Feb. 1, 2024, 2:15 p.m.
    ...plasmids under this application process since May 2020. We find this process takes 4-6 weeks on average. ...and SARS-COV-1 plasmids. Export control license process    An export control license, once approved, allows...organization. A non-refundable fee is applied to cover processing costs. Once the application is approved, Addgene...Addgene then ships the material following our normal process.   Due to recent regulation changes, an export ...required for your country after checkout, and the processing fee will be removed before your account is charged...possible, as we cannot expedite the application process.  More information about export control licenses...about this or other Addgene shipping and ordering processes, don’t hesitate to contact our friendly customer...
  4. DAP arrays for multiplex gene editing

    Type
    Blog Post
    Published
    July 7, 2022, 1:15 p.m.
    ...array  Although CRISPR-Cas12a, with abilities to process and release its own gRNAs from a single array, ...efficient base editing and prime editing, is unable to process its own array but is the key component to enable...minimal size. To do so, they harnessed the tRNA processing mechanism, which is conserved in all living organisms...individual gRNAs are released by endogenous tRNA processing machineries, specifically, RNaseZ and RNaseP....additional promoter, which is followed by tRNA processing to release individual gRNAs for gene editing....architecture the DAP array, short for “drive-and-process.” To optimize DAP use, they developed a generalizable...tRNA itself, as short as 75-nt, to both drive and process the tRNA-gRNA arrays, which is scalable and efficient...
  5. Lab Automation at Addgene

    Type
    Blog Post
    Published
    March 22, 2018, 1:28 p.m.
    ...automate these processes, but there are many simple steps you can take to automate processes in your own ...automating a few protocols to make standard lab processes easier and more efficient. Here, I’ll discuss ...with some tips on how to automate some simple processes in your own lab. Automating bacterial transformation...pipette samples in and out of it, you can set up a procedure for it using the Biomek FxP. For example, we added...demand it was too time consuming to complete this process by hand and we welcomed yet another robot onto ...agar doesn’t solidify while it goes through this process. With enough agar and the right program, the liquid...you want to avoid sore fingers. There are other process that Addgene would love to move forward and automate...
  6. Plasmids 101: Terminators and PolyA signals

    Type
    Blog Post
    Published
    March 31, 2016, 2:30 p.m.
    ...transcriptional unit (such as a gene) and initiate the process of releasing the newly synthesized RNA from the...terminator also plays an important role in RNA processing and contributes to variability in RNA half-life...Although mostly thought of as a eukaryotic-specific process, prokaryotes also add poly(A) tails to certain ...studied as prokaryotic termination, the basic processes for eukaryotic termination are understood and ...to terminate transcription. Polymerase I uses a process similar to the prokaryotic Rho-dependent mechanism...the cleavage and polyadenylation enzymes, in a process that seems to couple termination with polyadenlyation...transcripts (and therefore mRNAs) are coordinated processes. Cleavage between the consensus motif and a downstream...
  7. Tips for arabidopsis transformation

    Type
    Blog Post
    Published
    Oct. 25, 2018, 1:23 p.m.
    ...from later. The Arabidopsis transformation process The process itself is straightforward. When your agrobacterial...growth on antibiotic-containing media) A similar process occurs in nature; Agrobacterium tDNA insertion ...in hand, so it is pretty important to get this process right the first time. I’ll lay out some guidelines...Agrobacterium strain. Additionally, the transformation process can get a bit messy, so you want to make sure you...begin working in the T2 generation. The selection process itself can affect the growth of resistant plants...and has made countless transgenic plants in the process.     References 1. Emami, S., Yee, M. and Dinneny...example of a naturally transgenic food crop.’, Proceedings of the National Academy of Sciences of the United...
  8. Multiple Plasmids at a Low Price: Kits from Addgene

    Type
    Blog Post
    Published
    Sept. 14, 2016, 2:30 p.m.
    ...decrease false positives observed in the cloning process, making it easier to produce the constructs you...novel and powerful pyranopyridine derivatives." Proceedings of the National Academy of Sciences 113.13 (2016...-time observation of metabolite production." Proceedings of the National Academy of Sciences 113.9 (2016...pCri system to simplify the protein purification process by making it easy for a researcher to quickly generate...on the system Easing the Protein Purification Process with pCri Cell-free protein expression kit Cell-free...in-vitro assays: Koch, Daniel, et al. "A pull-down procedure for the identification of unknown GEFs for small...adaptive evolution of antibiotic resistance." Proceedings of the National Academy of Sciences 109.52 (2012...
  9. Plasmids 101: Screens vs. Selections

    Type
    Blog Post
    Published
    Nov. 10, 2022, 2:15 p.m.
    ... a role or affects a function in a given process. The process can range from a defined pathway or reaction...attempt to identify new players in a biological process. Players can be proteins, genes, enzymes, drugs...what type of factor you are looking for and what process or outcome that factor functions in. The differences...cellular screen or a selection. A selection is a process in which only cells with the trait of interest ...they enhance, hinder, or have no effect on the process you are interested in. What does this actually...survive and be assayed at the end of the selection process. Non-functional traits will be automatically eliminated...
  10. Antibodies 101: ChIP

    Type
    Blog Post
    Published
    March 10, 2022, 3:25 p.m.
    ...the ChIP process and not the upsteam sample collection process or the downstream analysis process. And ChIP...faint of heart!  The Process ChIP can be done for either tissues or cells. The process is very similar for...remain attached to the DNA throughout the sample processing and therefore will require crosslinking, which...done by cutting the tissue sample up and then processing with a homogenizer, but bone or especially fibrous...
  11. Sharing is Caring: But How to Distribute Open Hardware?

    Type
    Blog Post
    Published
    Feb. 28, 2023, 2:15 p.m.
    ...constantly being developed which combine computational processing with biological protocols and revolutionary physical...Software In the field of microscopy, where image processing algorithms for analyzing time-lapse images, quantitatively...data (ILASTIK), or the popular plugin-based image process framework FIJI are just three of the constantly...constant updates of the software. In hardware, this process is often much more involved. Challenges such as...these limitations into account in the development process. Widely used, commercially available tools such... the world that are otherwise cut off from the process.   About the author: Benedict Diederich received...research to everybody by relying on tailored image processing and low-cost optical setups. References Joel...
  12. Transferable Skills Guide: Teamwork

    Type
    Blog Post
    Published
    Nov. 28, 2017, 2 p.m.
    ...exist anywhere in science: Functional or process team A Process Team is a group of people with distinct...somewhat complicated Material Transfer Agreement process that kits require; Nicole, the web master in charge...these people and others, we have updated our kit process substantially and have plenty of ideas for further...people are responsible for a group of specific processes, they must work in sync to get tasks done. At ...core or tissue culture core, you are looking at a process-oriented team serving a particular function. Project...collaborations fall within this category. Unlike a process team, you don’t necessarily want a lot of redundant...with all the new information in the world, so a process or project or mission that requires a broad knowledge...
  13. RNA Interference in Plant Biology: New Tools for an Old Favorite

    Type
    Blog Post
    Published
    Oct. 27, 2020, 1:15 p.m.
    ...block of our understanding of complex biological processes. Many tools exist to perturb biological function... interference (RNAi) is a conserved eukaryotic process where approximately 20-30 nucleotides of double-stranded...formation of a hairpin RNA structure, resulting in processing by the endogenous RNAi machinery. Alternatively... engineered to created artificial miRNAs. The processed miRNA or siRNAs then silence the target gene(s... In plants, different dicer-like enzymes (DCL) process the dsRNA into specific types of interfering RNAs...cleaved mRNA can induce further rounds of RNAi. This process, known as “transitivity,” calls into question any...variable silencing efficiency and labor-intensive processes to isolate RNAi plants. With a visual reporter...
  14. Fluorescent Proteins 101: Introduction to FRET

    Type
    Blog Post
    Published
    June 27, 2017, 1:03 p.m.
    ...orientation of the FRET pair. Since many biological processes occur within the typical FRET range, FRET efficiency...fluorophore on the same protein and are useful when a process affects the conformation of the probe. More on ...answer sophisticated questions about cellular processes. Currently, FRET experiments can probe protein-protein... activity of small molecules, detect cellular processes and signaling cascades, quantify mechanical tension... 2015), which may lead to monitoring of these processes in live animals (Hirata and Kiyokawa 2016), and...correlated information available from a cellular process. FRET experiments are expected to continue to contribute...insertion within green fluorescent proteins." Proceedings of the National Academy of Sciences 96.20 (1999...
  15. How Do I Place an Addgene Order Using a PO Number?

    Type
    Blog Post
    Published
    Feb. 27, 2020, 2:15 p.m.
    ...trickier -- but at Addgene, we try to make the process as smooth and simple as possible. We are the Customer...frequently asked questions related to the ordering process: I placed an order through my university’s purchasing... directly from your website? Many vendors will process orders based on a purchase order, which is an official...the legal agreement (MTA), which streamlines the process and saves you time. Anyone affiliated with the ...you have additional questions about our ordering process not addressed in this article, check out our Help...answers to common questions about the ordering process, the Addgene Help Center is full of information...
  16. Transferable Skills Guide: Time Management

    Type
    Blog Post
    Published
    Dec. 5, 2017, 1:52 p.m.
    ...After a bit of research and thinking about my own processes, I’ve broken down time management into three conceptual...conceptual chunks: prioritization, planning, and procrastination. Time management through prioritiziation Every...Eric before doing anything else. Preventing procrastination Even if you’ve done all the prioritizing and...and planning in the world, procrastination can easily prevent you from making progress on a task. For ...few things I’ve found useful to avoid such procrastination: Remove distractions: Probably the easiest...STARTED - One Harvard Business Review article on procrastination recommends testing out how much time you can... procrastination...
  17. Five Popular Model Organisms, Part 2

    Type
    Blog Post
    Published
    Sept. 29, 2020, 1:15 p.m.
    ...that has defined our understanding of biological processes and developments. Model organisms often feature...history and characterization. Many proteins and processes naturally found in E. coli have been manipulated.... coli can be used as a model to relate these processes in more pathogenic bacteria (Blount, 2015). Rattus...McCusker and Gardiner, 2011). As many biological processes and signaling pathways that regulate regeneration...humans. Thus, understanding their life cycle and processes with their regenerative abilities is expected ...the most significant and fundamental biological processes. Many of their genetics and developmental patterns...Wang, S. H., & Jiang, J. P. (2016). Research proceedings on amphibian model organisms. Dong wu xue yan...
  18. Fluorescent Proteins 101: Fluorescent Biosensors

    Type
    Blog Post
    Published
    May 18, 2017, 2:30 p.m.
    ...to track or measure the process you’re interested in. Depending on the process you would like to monitor... sensors’) are biological tools that monitor a process or detect a given molecule. The sensor component...over time. You can also use biosensors to follow processes such as protein or DNA binding, enzyme or transcriptional...  Detection Method Notes Quantification of a process Plate-based assays (plate reader) Detect the average...of cells (i.e. in a plate well). Use to track a process (e.g. enzyme activity) over time or under various...
  19. Antibodies 101: The Basics of Western Blotting

    Type
    Blog Post
    Published
    March 8, 2021, 2:41 p.m.
    ...gels to nitrocellulose sheets: procedure and some applications. Proceedings of the National Academy of Sciences...  Figure 1: Overview of the Western blot process. Starting with a mixture of proteins, it is separated...stained with antibodies, and visualized.   This process allows you to detect a single, specific protein...conduct the electric current. The wet transfer process is very effective in transferring a broad range...common readout for subcellular fractionations, a procedure that isolates proteins from different cellular... antibody specificity and antigen structure. Proceedings of the National Academy of Sciences 76:3116–3120...
  20. Learning Technical Skills at a Lab Central Workshop

    Type
    Blog Post
    Published
    Feb. 20, 2018, 2:30 p.m.
    ...replenishing kits, is to find new ways to make lab processes more efficient. Being in the Boston area, we get...workshops and can use what we learn to improve processes in the Addgene lab. In this post, I’ll tell you...sample into many small components. Without proper processing, these small DNA strands can form concatemers...libraries from previously fragmented DNA.The general process for library preparation using this kit is: Fragmentation...that regardless of how much DNA we started the process with, we got great amplification of our sample ... for us as a company to constantly update our processes and get new ideas from learning experiences like...
Showing: 41 - 60 of 473 results