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...Cervical cancer screening in Ghana Gladys is currently working to enhance cervical cancer screening in Ghana....cervical cancer screening for a limited group of Ghanaian women by including PCR screening for HR HPV alongside...tests are commonly used in Ghana, there is little screening for DNA markers like the presence of high risk...tests currently in use. Gladys will use plasmids containing a variety of HPV genes as positive controls in...by these screens can then undergo more routine screening allowing for early cervical cancer detection, ...her in the future. Future awardees We will be opening the Addgene/Seeding Labs Plasmid Grant to a third... cancer screening...

...development through thoughtful planning and honest feedback DePace’s yearly planning meetings revolve around ...various issues, the PI is responsible for determining meaningful solutions. PI-trainee communication builds...setting and career planning help alleviate the anxiety of graduate and postdoc training. On the other side...goals.      Although myIDP is great for career planning, it shouldn’t be used in isolation. Without clear... her lab (pictured above). DePace holds yearly planning meetings with each trainee to create a supportive...to facilitate honest conversation. Goals and Planning Worksheet: Lists accomplishments, research/professional...Starting with a recap of accomplishments, from learning new techniques to finally figuring out a tough...

...start doing your cloning. Most sequence analysis software includes Golden Gate cloning tools that simulate...reagents Keep it cool You’ve done all the learning and planning, and your MoClo kit has just arrived! MoClo...happy cloning!   Resources Additional resources on the Addgene blog Plasmids 101: Modular Cloning Plasmids...Plasmids 101: Modular Cloning Applications and Kits Plasmids 101: Golden Gate Cloning Additional resources...Mohamed Soufi. So you’ve learned about the Modular Cloning (MoClo) system and what it can do for you, and ...MoClo really simplifies vector construction by combining restriction and ligation steps together in the...transcription units. Created with BioRender.com.   Planning makes perfect Our first tip, and arguably the ...

...and base changes from A•T-to-G•C are mediated by adenine base editors (ABEs). How does this work? Through...dilution (passage from the infected to a fresh uninfected host cell culture). This dilution step represents...passaged from an infected host-cell culture to an uninfected culture which results in less overall dilution...BioRender.com. Introducing ABE8e - a fast and flexible adenine base editor Lower-stringency PANCE, followed by...efficient in on-target DNA editing as ABE8e while maintaining the lower off-target DNA and off-target RNA editing...pathogenic point mutations. Together, cytosine and adenine base editors can correct all four of these kinds..., Liu DR (2020) Phage-assisted evolution of an adenine base editor with improved Cas domain compatibility...

...they think of these particles as tiny DNA cutting ninjas that deliver CRISPR to multiple types of targets...fluorophore or tag. To utilize HDR, a donor template containing the desired sequence flank by homology arms must...hydroxyphenylpyruvate dioxygenase (HPD) gene, all nine treated mice had ~10% editing in their livers, while...line on Nanoblades Nanoblades are tiny DNA-cutting ninjas which can stealthily delivery many types of CRISPR...

...that career skills training is a required and integral part of all science training programs. I believe...the transition to a post-academic career. This training was “included” with their tuition, so to speak...even doing a very good job of providing skills training for scientists destined to continue in academia... science trainees to be successful after their training.   Figure 1: Professional Development Hub...driving systemic change in academic career readiness training. It's been an honor to work with such a group ...know-how to integrate career development in science training programs. In 2018, the ASBMB and Burroughs Wellcome...representatives from all areas of the scientific training and employment infrastructure. A Stakeholder Workshop...

...to enable both negative and positive selection screening. They and their colleagues including Feng Zhang... (PubMed). Genome-Scale CRISPR-Cas9 Knockout Screening in Human Cells. Shalem O, Sanjana NE, Hartenian...Dec 12. (PubMed). Genome-Wide Recessive Genetic Screening in Mammalian Cells with a Lentiviral CRISPR-Guide...

...an international researcher who uses plasmids containing genes from rabies and vesicular stomatitis virus...

...limited - what cloning approach should you use if the budget is particularly tight? Most cloning processes ...for traditional restriction cloning. Sequence and Ligation Independent Cloning (SLIC) could also be a great... The general Gateway cloning protocol is fairly flexible and adaptable to cloning different types of DNA...guarantees, some cloning techniques do tip the scales in your favor. For starters, Golden Gate cloning is extremely...since CRISPR; you are ready to clone! But...how? Cloning is no longer limited to restriction enzymes - although...: Speed Cost Difficulty Efficiency For cloning in particular, another important consideration ...inserts ...as some methods are more amenable to combining multiple DNA fragments than others. In today’s...

...advance their research on diseases of glycosylation, arginine mutagenesis, and neural development. Paula Videira...inherited metabolic diseases with severe and life-threatening consequences. They result from defects in different...drugs can be used to treat these diseases (drug repositioning). The ultimate goal of this work is to lower...PubMed PMID: 27393411. Michael McMurray: Rescuing arginine mutations in rare disease with guanidine Michael... mutations that change protein sequence affect arginine (Arg) amino acids more frequently than any other...

...some of them containing fluorescent markers or protein tags, and suitable for molecular cloning. Plus, we...bacteria and prep the plasmid before you begin your cloning experiment? What if after receiving the plasmid...collection has been prepared as part of our new cloning grade DNA service and is ready to use out of the...the box. We estimate that providing cloning grade DNA could save scientists up to three days of work. ...discovery.” Here are the details. Plasmids offered as cloning grade DNA As we begin testing out this service,...directly used in the research on the SARS-CoV-2. Nine of the overall plasmid selection will be open to...of target organisms (from bacteria to mammals), cloning techniques, and experimental use (CRISPR, viral...

...Adenine base editors (ABE) mediate A•T-to-G•C base changes (Figure 1), but it can be challenging to make...et al., 2020. Directed evolution identifies adenine base editors with improved editing in cell lines...TadA sequences to create the eighth generation of adenine base editors, called ABE8 (Gaudelli et al., 2020...Cas9 proteins to increase the targeting scope of adenine base editors The most commonly used S. pyogenes...(“N” can be any nucleotide base, followed by 2 guanines). This limits the use of ABEs as DNA sites that...off-target RNA and gRNA-dependent DNA editing while maintaining on-target base editing functionality.  The delivery... LE, Ciaramella G (2020) Directed evolution of adenine base editors with increased activity and therapeutic...

...Iterative improvement - Making Binning Singletons better Our experience running this program at ASM Microbe...This post was contributed by Joe James from Binning Singletons. The sheer scale of a large conference...bench scientist working at an institution where training opportunities weren’t always available. Even more...Denise Akob and Geof Hannigan that the outline for Binning Singletons came together. The term Singleton was...any reason was a Singleton. Figure 1: The Binning Singletons logo. Image: James et al., 2020. ...similar sequences together in bins, we thought that binning Singletons together would provide a structure and...Singletons in their bins.  The next component of Binning Singletons is when we bring all the bins together...

...circular polymerase extension cloning) and SLiCE (Seamless Ligation Cloning Extract) to name two more. Likewise... Assembly (NEB) Cold Fusion Cloning (System Biosciences) In-fusion Cloning (Clontech) Although these ...smaller fragments. Know your cloning methods There are two other common cloning methods that are easy to ...different methods. Golden Gate cloning does result in the seamless joining of fragments, but uses site specific...your insert. Gateway cloning utilizes λ integrase to catalyze directional cloning of DNA parts that are..., Gateway, or Golden Gate cloning methods. Whether it is for routine cloning, assembly of multiple fragments...About Other Cloning Techniques Additional Resources on Addgene.org Find Plasmid Cloning Protocols Find...

...encoded fluorescent sensor for serotonin. According to Unger, “serotonin is a well-known but poorly studied...medium-throughput screening, she increased the affinity of the sensor for serotonin by over four orders...leads to the release of serotonin (measured using the newly developed green serotonin sensor). In preliminary...use the serotonin sensor in sleep-related studies and in assays for measuring human serotonin transporter...Chiasson explains. Elizabeth Unger: Developing a serotonin sensor The goal of Elizabeth Unger’s postdoctoral...there are no known bacterial proteins that bind serotonin. Unger redesigned the binding pocket of the periplasmic...periplasmic binding protein so that it would recognize serotonin. Using a combination of computer modeling, directed...

...2in1 vector cloning system Article contributed by Michelle Cronin  Listen to the 2in1 cloning podcast segment...traditional Gateway™ cloning, the GOI first needs to be cloned into an entry vector. The 2in1 cloning system contains...restriction digest cloning to introduce the GOIs into the 2in1 vector instead of the GatewayTM cloning BP reaction...Recently, the Grefen lab introduced the “2in1” vector cloning system - a Gateway compatible approach to simultaneously...the GOI occurs through recombination. The 2in1 cloning system is well suited for protein-protein interaction...coexpression. By introducing a single plasmid containing both GOIs, expression levels are more evenly ...controlled. The Grefen Lab has utilized the 2in1 cloning system to generate a series of plasmids to study...

... Figure 1: Initial steps in the CRISPR-pooled screening using sgRNAiBAR. Image from Zhu et al., 2019.  ... Peking University has developed a new CRISPR screening method that makes use of guide RNAs with internal... After infecting cells with sgRNAiBAR library containing lentiviral vectors the iBARs can be detected ... annotated human gene, it enables genome-wide screening with a high MOI, which is beneficial for a low... calcineurin dynamics and can serve as a drug-screening platform to identify new antifungals that target... assay, and are not suited to high throughput screening, calcineurin dynamics measurements, or monitoring... that this method is compatible with dead cell staining using propidium iodine (PI), allowing for calcineurin...

...heavy joining group IGHJ IGHJ1 immunoglobulin heavy joining 1 JH1 IGHJ2 immunoglobulin heavy joining 2 JH2...heavy joining 3 JH3b IGHJ4 immunoglobulin heavy joining 4 JH4b IGHJ5 immunoglobulin heavy joining 5 JH5b...kappa joining group IGKJ IGKJ1 immunoglobulin kappa joining 1 J1 IGKJ2 immunoglobulin kappa joining 2 J2... kappa joining 3 J3 IGKJ4 immunoglobulin kappa joining 4 J4 IGKJ5 immunoglobulin kappa joining 5 J5 IGKV...lambda joining 2 J2 IGLJ3 immunoglobulin lambda joining 3 J3 IGLJ4 immunoglobulin lambda joining 4 (non-functional...- CHGA chromogranin A (parathyroid secretory protein 1) CGA CHGB chromogranin B (secretogranin 1) SCG1...ODG1 GAL galanin prepropeptide GALN, GLNN, GMAP, MGC40167 GALP galanin-like peptide - GALR2 galanin receptor...

...PI 31186 pEVOL-pAzF p-azidohenylalanine RS M. jannaschii p-azido-l-phenylalanine Bacterial TAG Peter Schultz...31190 pEVOL-pBpF p-benzoylphenylalanine RS M. jannaschii p-benzoyl-l-phenylalanine Bacterial TAG Peter...85494 pDule-pCNF para-cyanophenylalanine synthetase M. jannaschii azidoPhenylalanine Bacterial TAG Ryan ...85495 pDule2-pCNF para-cyanophenylalanine synthetase M. jannaschii azidoPhenylalanine Bacterial TAG Ryan ...acids. Scientists have expanded this code by reassigning specific codons to enable the incorporation of... tRNA copies for efficiency. A target plasmid containing the gene of interest with the modified codon ...therapeutics to biopolymers. Tips for Success Before beginning to reprogram the genetic code, there are several...

...gRNA design and cloning gRNA cloning vector PDF, 118 KB Church gRNA design and cloning for Cas9 orthologs... Cas9 PDF, 66.8 KB Fujii gRNA design and cloning gRNA cloning vector Retroviral vectors: neomycin (pSIR-neo... Fly: gRNA cloning pAc-sgRNA-Cas9 PDF, 169 KB Marraffini Bacteria: pCas9 new spacer cloning pCas9 PDF,...Lander gRNA cloning into pLX-sgRNA pLX-sgRNA PDF, 129 KB Sontheimer gRNA design and cloning All-in-one ...All-in-one plasmid containing expression cassette for NmCas9 and BsmBI site for cloning in gRNA: pSimpleII-U6-tracr-U6...in your lab, from knockouts to pooled library screening. CRISPR eBook Addgene's downloadable eBook about...opens in a new window) A webtool that uses deep learning models for SpCas9 gRNA design and efficiency prediction...