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Showing: 181 - 200 of 1081 results
  1. Molecular Cloning Techniques

    Type
    Guide
    ...40 bp of homology to each of the larger fragments. The fragments should have complementary ends with 30...restriction enzymes to cut dsDNA of interest into fragments containing precise 5' or 3' single-strand overhangs...and produce predictable cleaved ends in the DNA fragments. Given its prevalence, the vast majority of plasmids...polymerase, and ligase. In Gibson assembly, DNA fragments with 20–40 base-pair homology at their ends can...exonuclease chews back the 5’ ends of your DNA fragments, generating long overhangs that anneal to each...is that it allows for the assembly of multiple fragments of DNA in the chosen orientation at a time, and...enzyme or Gateway recombination sites). Any dsDNA fragments can be used, so if properly designed, any insert...
  2. Guide to Using Pooled Libraries

    Type
    Guide
    ...how to amplify and use them, and what types of experiments can be done with a pooled library....you to design additional hypothesis-directed experiments. Barcoding libraries contain plasmids with unique... used for different types of high-throughput experiments, including studying regulatory sequences, screening...competition assays, measuring bottlenecks after treatments, deconvolution of pooled perturbations, and linking...CRISPR is a useful tool for genetic screening experiments, due to the relative ease of designing gRNAs ...screened for a phenotype of interest. Screening experiments using a pooled CRISPR library are far more complex...can be used for many different high-throughput experiments. They are useful for probing cellular pathways...
  3. Guide to Using Pooled Libraries

    Type
    Guide
    ...how to amplify and use them, and what types of experiments can be done with a pooled library....you to design additional hypothesis-directed experiments. Barcoding libraries contain plasmids with unique... used for different types of high-throughput experiments, including studying regulatory sequences, screening...competition assays, measuring bottlenecks after treatments, deconvolution of pooled perturbations, and linking...CRISPR is a useful tool for genetic screening experiments, due to the relative ease of designing gRNAs ...screened for a phenotype of interest. Screening experiments using a pooled CRISPR library are far more complex...can be used for many different high-throughput experiments. They are useful for probing cellular pathways...
  4. Promoters

    Type
    Guide
    ...with BioRender.com. DNA sequences called response elements are located within promoter regions, and they ...regulatory sequences, including enhancers, boundary elements, insulators, and silencers. Bacterial Promoters.... It is not unusual to have several regulatory elements, such as enhancers, several kilobases away from...nucleosomes) also bind the TATA box. Histone binding prevents the initiation of transcription, whereas transcription...promoter, which contains many primary regulatory elements. The proximal promoter is found approximately ... binding sites, but mostly contains regulatory elements. Common Eukaryotic Promoters Researchers often...
  5. Promoters

    Type
    Guide
    ...with BioRender.com. DNA sequences called response elements are located within promoter regions, and they ...regulatory sequences, including enhancers, boundary elements, insulators, and silencers. Bacterial Promoters.... It is not unusual to have several regulatory elements, such as enhancers, several kilobases away from...nucleosomes) also bind the TATA box. Histone binding prevents the initiation of transcription, whereas transcription...promoter, which contains many primary regulatory elements. The proximal promoter is found approximately ... binding sites, but mostly contains regulatory elements. Common Eukaryotic Promoters Researchers often...
  6. Chemogenetics Guide

    Type
    Guide
    ...barrier in rats, and the utility of DREADDs in experiments in this species may be entirely due to back-metabolism...issues as CNO and are attractive alternatives for experiments. Perlapine has been previously used in human ...respond to the same ligands was that bidirectional experiments (that is, using both activating and inhibiting...absence of Cre and are especially useful in AAV experiments where the virus can spread around the injection...
  7. Chemogenetics Guide

    Type
    Guide
    ...barrier in rats, and the utility of DREADDs in experiments in this species may be entirely due to back-metabolism...issues as CNO and are attractive alternatives for experiments. Perlapine has been previously used in human ...respond to the same ligands was that bidirectional experiments (that is, using both activating and inhibiting...absence of Cre and are especially useful in AAV experiments where the virus can spread around the injection...
  8. Addgene's eBook Collection

    Type
    Guide
    ...applications, tips for using vectors in your experiments, troubleshooting advice on production and use...
  9. Addgene's eBook Collection

    Type
    Guide
    ...applications, tips for using vectors in your experiments, troubleshooting advice on production and use...
  10. Gibson Assembly Protocol

    Type
    Protocol
    ...Join almost any two fragments regardless of sequence. No scar between joined fragments. Fewer steps. One...about what DNA segments you will need to join to create your final plasmid. Adjacent segments should have...If there are significant amounts of undesired product, gel-purify DNA segments. Otherwise, PCR purification...combine segments in the Gibson Assembly Reaction. Pro-Tip Yields will be best when the DNA fragments are ...annealed DNA fragments. Taq DNA Ligase - covalently joins the annealed complementary DNA fragments, removing... al. , 2010). Number of fragments assembled simultaneously Multiple fragments can be assembled in one ... for the easy assembly of multiple linear DNA fragments (Gibson et al. , 2009). Regardless of fragment...
  11. Gibson Assembly Protocol

    Type
    Protocol
    ...Join almost any two fragments regardless of sequence. No scar between joined fragments. Fewer steps. One...about what DNA segments you will need to join to create your final plasmid. Adjacent segments should have...If there are significant amounts of undesired product, gel-purify DNA segments. Otherwise, PCR purification...combine segments in the Gibson Assembly Reaction. Pro-Tip Yields will be best when the DNA fragments are ...annealed DNA fragments. Taq DNA Ligase - covalently joins the annealed complementary DNA fragments, removing... al. , 2010). Number of fragments assembled simultaneously Multiple fragments can be assembled in one ... for the easy assembly of multiple linear DNA fragments (Gibson et al. , 2009). Regardless of fragment...
  12. Pipetting Protocol

    Type
    Protocol
    ...bottom. For the P1000, this represents the ones. For the P200, this represents the first decimal place. ...For the P20, this represents the second decimal place, and for the P2 this represents the third decimal...in many scenarios to accurately dispense small amounts of liquid (think: 0.1 µL to 1 mL). When working...microfuge tube, bottle, etc.) Labels for containers Reagents Liquid for pipetting Background Information Anatomy... container in order to avoid contaminating the contents. Once the end of the tip is submerged, slowly ...small changes in the volume could affect your experiments. Beyond knowing the proper way to pipette, it...they are properly tuned to dispense the correct amounts of liquid. If you are pipetting the same amount...
  13. Pipetting Protocol

    Type
    Protocol
    ...bottom. For the P1000, this represents the ones. For the P200, this represents the first decimal place. ...For the P20, this represents the second decimal place, and for the P2 this represents the third decimal...in many scenarios to accurately dispense small amounts of liquid (think: 0.1 µL to 1 mL). When working...microfuge tube, bottle, etc.) Labels for containers Reagents Liquid for pipetting Background Information Anatomy... container in order to avoid contaminating the contents. Once the end of the tip is submerged, slowly ...small changes in the volume could affect your experiments. Beyond knowing the proper way to pipette, it...they are properly tuned to dispense the correct amounts of liquid. If you are pipetting the same amount...
  14. Protocol - pLKO.1 – TRC Cloning Vector

    Type
    Protocol
    ...selection in your experiments. (You may wish to repeat this titration with finer increments of puromycin to...See “warranty information” in appendix. Table of Contents A. pLKO.1-TRC Cloning Vector A.1 The RNAi Consortium...microcentrifuge tube. TIP: When visualizing DNA fragments to be used for ligation, use only long-wavelength...products on a 1% agarose gel. You should see two fragments, a 2kb fragment and a 5kb fragment. 5. Sequence...the host genome. For stable loss-of-function experiments, Addgene recommends that you generate lentiviral...The protocol can be scaled to produce different amounts of virus as needed. Day 1: a. For each plasmid ...puromycin should be from 1-10 μg/mL in 1 μg/mL increments. d. Label plates from 1-10 and add appropriate...
  15. Protocol - pLKO.1 – TRC Cloning Vector

    Type
    Protocol
    ...selection in your experiments. (You may wish to repeat this titration with finer increments of puromycin to...See “warranty information” in appendix. Table of Contents A. pLKO.1-TRC Cloning Vector A.1 The RNAi Consortium...microcentrifuge tube. TIP: When visualizing DNA fragments to be used for ligation, use only long-wavelength...products on a 1% agarose gel. You should see two fragments, a 2kb fragment and a 5kb fragment. 5. Sequence...the host genome. For stable loss-of-function experiments, Addgene recommends that you generate lentiviral...The protocol can be scaled to produce different amounts of virus as needed. Day 1: a. For each plasmid ...puromycin should be from 1-10 μg/mL in 1 μg/mL increments. d. Label plates from 1-10 and add appropriate...
  16. Protocol - How to Run an Agarose Gel

    Type
    Protocol
    ... that has UV light, visualize your DNA fragments. The fragments of DNA are usually referred to as ‘bands...matrix toward a positive electrode. Shorter DNA fragments migrate through the gel more quickly than longer...gel alongside a DNA ladder (a collection of DNA fragments of known lengths). Last Update: Feb. 20, 2018 ...Voltage source Gel box UV light source Microwave Reagents TAE ( recipe here ) Agarose Ethidum bromide (stock...Another method for visualizing very short DNA fragments is polyacrylamide gel electrophoresis (PAGE), ...which is typically used to separate 5 - 500 bp fragments. How do you get better separation of bands? If...
  17. Protocol - How to Run an Agarose Gel

    Type
    Protocol
    ... that has UV light, visualize your DNA fragments. The fragments of DNA are usually referred to as ‘bands...matrix toward a positive electrode. Shorter DNA fragments migrate through the gel more quickly than longer...gel alongside a DNA ladder (a collection of DNA fragments of known lengths). Last Update: Feb. 20, 2018 ...Voltage source Gel box UV light source Microwave Reagents TAE ( recipe here ) Agarose Ethidum bromide (stock...Another method for visualizing very short DNA fragments is polyacrylamide gel electrophoresis (PAGE), ...which is typically used to separate 5 - 500 bp fragments. How do you get better separation of bands? If...
  18. AAV ddPCR Titration

    Type
    Protocol
    ...specifically uses primers and probes targeting the ITR elements in the viral vectors but can be modified for other...GC/mL, where GC is genome copies and generally represents the physical number of viral particles. Users...Before Starting To reduce the risk of contaminating reagents we recommend making small aliquots of master mixes...10199-452 Ice bucket 96-well freezer blocks (x 3) Reagents Molecular Biology Grade Water, Hyclone, SH30538.02...generation BSC) to ensure no contamination of the PCR reagents and the NTC with virus. Pre-warm the 96-well plate...equipment with 10% bleach prior to use and keeping all reagents and samples on ice or pre-chilled 96-well freezer...accuracy of the titer, take the average of several measurements. Figure 1: ddPCR sample data Sample Dilution...
  19. AAV ddPCR Titration

    Type
    Protocol
    ...specifically uses primers and probes targeting the ITR elements in the viral vectors but can be modified for other...GC/mL, where GC is genome copies and generally represents the physical number of viral particles. Users...Before Starting To reduce the risk of contaminating reagents we recommend making small aliquots of master mixes...10199-452 Ice bucket 96-well freezer blocks (x 3) Reagents Molecular Biology Grade Water, Hyclone, SH30538.02...generation BSC) to ensure no contamination of the PCR reagents and the NTC with virus. Pre-warm the 96-well plate...equipment with 10% bleach prior to use and keeping all reagents and samples on ice or pre-chilled 96-well freezer...accuracy of the titer, take the average of several measurements. Figure 1: ddPCR sample data Sample Dilution...
Showing: 181 - 200 of 1081 results