We narrowed to 960 results for: REP
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TypeProtocol...each step Reagent Preparation Master Mix: Count the number of samples (n) and prepare master mix for an... number of genome-containing particles in an AAV prep using qPCR, SYBR Green Technology, and Addgene’s... number of genome-containing particles of an AAV prep using SYBR green technology. This protocol was validated...vector cores. Our titers were similar to those reported by these institutions. This protocol is for a ...μL Nuclease Free Water 4.7 μL 470 μL Procedure Prepare a plasmid stock of 2 x 10 9 molecules/μL to generate...plasmids to find a suitable one. Some labs have reported better results when the plasmid is linearized....min / 98 °C 15 sec / 58 °C 30 sec / read plate/ repeat 39x from step 3 / melt curve Example of plate set-up...
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Affinity Purification of Recombinant Antibodies with Protein A or Protein G
TypeProtocol...the full details of our protocols supports reproducibility and accelerates science. Here, we list the ...solely for transparency intended to support reproducibility in science. Safety Warnings Sodium azide is...to room temperature (RT) before use. Reagent Preparation 1 M sodium phosphate monobasic monohydrate (NaH...column. Collect the flow through in a 250 mL bottle. Repeat steps 9–10 such that the supernatant passes through...Centrifuge at 1000 x g for 2 min to remove PBS. Repeat Steps 30–31 3x , discarding buffer from the collection...Discard the flow through into a waste container. Repeat steps 29-31 at least 4 additional times to ensure.... If the sample concentration is still too low, repeat the centrifugation until the volume of the sample... -
Lentivirus Production
TypeProtocol... 2 (am): 18 h post-transfection. Remove media, replace with fresh media. Day 3-4 (am): Harvest virus Equipment...plasmid encoding your insert of interest Reagent Preparation DMEM Complete (also known as D10): 10% v/v FBS...T75 flask in 15 mL DMEM Complete. Do not add pen-strep to the media. Use cells that are below passage 15...Incubate the cells at 37 °C, 5% CO 2 for ~20 h. Prepare a mixture of the three transfection plasmids into...empirically determined. Once a batch of PEI is prepared, transfect cells with a fluorescent plasmid using...following morning, carefully aspirate the media. Replace the media with 10 mL of DMEM Complete or OptiPro... -
Handling Plasmids from Addgene - Purifying Plasmid DNA
TypeProtocol... Protocol: Kit-free Alkaline Lysis Plasmid Miniprep Prepare the following solutions: Solution I - Resuspension...you can find a protocol for kit-free plasmid mini-prep at the bottom of this page. Last Update: Feb. 8,...culture of bacteria . Pro-Tip Refer to appropriate DNA prep protocol for volume of bacteria to grow (low copy...pellet the bacteria before proceeding with DNA preparation. Pro-Tip If your entire overnight culture cannot... chloroform to the recovered aqueous DNA layer. Repeat steps 2-4. Note: Phenol-chloroform is a hazardous... -
Pouring LB Agar Plates
TypeProtocol...Use this protocol to prepare LB agar plates with antibiotic in your lab....samples are sterilizing in the autoclave, you should prepare your plate pouring station: Find an empty section...antibiotics, and a section for active pouring. Prepare your antibiotics. Prior to adding your antibiotic...1000x stock solution. For example: If you’ll be preparing plates with a final concentration of 100 ug/mL..., dissolve by vortexing, and filter sterilize. Prepare a water bath at 60 ℃ with sufficient water to submerge...Only the Resistant Strain Grows If everything was prepared properly, you should see growth of only the resistant... -
Isolating a Monoclonal Cell Population by Limiting Dilution
TypeProtocol...conditioned medium prepared above to make a new cell solution at a concentration of 5 cells/mL. Prepare approximately...culture dish, Corning 430167 (optional) Reagent Preparation DMEM Complete: 10% v/v FBS and 4 mM L-alanyl-...well plate. Allow the cells to grow overnight. Replace the medium on the cells and collect the used (conditioned...a hemocytometer or other cell counter. Pro-Tip Prepare a relatively dilute cell solution (<10 6 cells/.... If you choose not to use conditioned medium, prepare this cell solution in fresh complete medium. This... -
General Transfection
TypeProtocol...2 (am): 18 h post transfection - Remove media, replace with fresh media Day 3 or more (am): Observe fluorescence... (PES) filter Syringes for filtering Reagent Preparation DMEM Complete: 10% v/v FBS and 4 mM L-alanyl-...empirically determined for each new batch of 1 mg/mL PEI prepared. There may be variation between batches of PEI...empirically determined. Once a batch of PEI is prepared, transfect cells with a fluorescent plasmid using...following morning, carefully aspirate the media. Replace the media with 15 mL of DMEM complete. Incubate... -
Immunocytochemistry
TypeProtocol...the full details of our protocols supports reproducibility and accelerates science. Here, we list the ...solely for transparency intended to support reproducibility in science. Last Update: January 20, 2022 Workflow...primary antibodies raised in a mouse. Reagent Preparation Permeabilization buffer: Dilute 20 µL of Triton...100 in 50 mL PBS. 300 nM DAPI working solution: Prepare a 300 µM DAPI stock solution by diluting 2.1 µL...DAPI solution to 100 µL PBS. Protect from light. Prepare a 300 nM DAPI working solution by diluting 5 µL... -
Protocol - How to Create a Bacterial Glycerol Stock
TypeProtocol...15-25% glycerol. You can prepare the glycerol stock the same time you prepare your plasmid DNA. In the...able to start an overnight culture for plasmid DNA prep the following day. Tips and FAQ The optimal concentration...glycerol stock before you begin your plasmid mini-prep. Try not to freeze/thaw your glycerol stock too ... -
Protocol - Over-Agar Antibiotic Plating
TypeProtocol...result represents a single experiment. For publishable data, the experiment would need to be repeated to ...their resistance genes, as one does not need to prepare separate batches of antibiotic-containing agar....or other antibiotic resistance) Procedure Day 1 Prepare carbenicillin to a concentration of 1 mg/mL – 4... -
Pipetting Protocol
TypeProtocol...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... -
Protocol - How to Inoculate a Bacterial Culture
TypeProtocol... do a mini-prep you will usually want to start 2 mL in a falcon tube, but for larger preps you might want...inoculate bacteria in liquid culture. Protocol Prepare liquid LB. For example, to make 400 mL of LB, weigh... -
Ligation Independent Cloning
TypeProtocol... but nicked vector product is then repaired during the replication cycle. Empty vectors for LIC typically... plasmid together through the transformation/replication process. LIC employs long overhangs to form a... -
Video Library
TypeProtocol...Purification Purify adeno-associated virus from a preparation produced in mammalian cells AAV Purification ... Inoculating a Liquid Bacterial Culture How to prepare and grow bacteria in a liquid medium Inoculating...physical titer of your adeno-associated virus preparation. AAV Titration by qPCR Using SYBR Green Technology... -
Protocol - Bacterial Transformation
TypeProtocol...bacteria are used as the means for both storing and replicating plasmids. Because of this, nearly all plasmids...expression) carry both a bacterial origin of replication and an antibiotic resistance gene for use as ...sell competent cells, which come frozen and are prepared for optimal transformation efficiencies upon thawing... -
What is Polymerase Chain Reaction (PCR)
TypeProtocol...the new target DNA strand accurately and rapidly. Repeat steps 2-4 25-30 times. Final Extension for 5 minutes...°C below Tm). Extend DNA for 2 minutes at 72°C. Repeat steps 8-10 for 25-30 cycles. Final Extension for...and concentration of PCR product. Master Mix Preparation Multiply the volume of each reagent by the number... -
Delivery Methods for Generating iPSCs
TypeBlog Post...table, reprogramming efficiencies ranking as low, medium or high is based on the reprogramming efficiencies... be used to package reprogramming factors. An important milestone of reprogramming is the silencing of...incomplete silencing of reprogramming transgenes, which leads to incomplete reprogramming. Additionally, lingering...rates of reprogramming when compared to MMLV-derived retroviruses, it is not as well repressed following...by terminal repeat sequences, which the PB transposase recognizes. Following reprogramming, transgenes...risk of lingering expression of reprogramming factors. Non-replicating Plasmids: Generating iPSCs with...RNA to reprogram cells is that it’s simple and efficient. It has a high efficiency of reprogramming when... -
Plasmids 101: Plasmid Incompatibility
TypeBlog Post...Origin of Replication? See our Plasmids 101: Origin of Replication blog). The replication problem Plasmids...directly inhibit replication by binding to the origin of replication and blocking replication machinery (del...inhibit plasmid replication. Figure 1: The replication problem. Iterons are repeated sequences within...increases, RepA transcription is repressed and replication is downregulated. In the second model, termed...cell have the same replicon and/or partitioning system. Let’s start with the replicon- the part of the ...plasmid that contains the origin of replication and the replication control machinery (Need a refresher... with the same replicon are incompatible because they compete for the same replication control machinery... -
New Viral Vectors - Winter 2025
TypeBlog Post...but browsing the 49 new preps available in the Addgene viral vector repository with a nice cup of hot ...viral prep with multiple serotypes pAAV-hSyn-GRAB_OTmut AAV1 Biosensor Yulong Li New viral prep pAAV-CAG-NIR-GECO2G...Fyhn New viral prep AAV-hSyn-Ribo-jGCaMP8m AAV1 Biosensor Marianne Fyhn New viral prep pAAV-Ef1a-fDIO... viral prep pAAV_BiSSTe10_dTomato_nlsdTomato AAV-PHPeB Control Gordon Fishell New viral prep pAAV_... viral prep pAAV_BiCHATe27_dTomato_nlsdTomato AAV-PHPeB Control Gordon Fishell New viral prep pAAV_BiCHATe27...New viral prep pAAV_BiVIPe4_dTomato_nlsdTomato AAV-PHPeB Control Gordon Fishell New viral prep pAAV_... viral prep pAAV_BiLAMP5e3_ChR2_mCherry AAV-PHPeB Optogenetics Gordon Fishell New viral prep pAAV_... -
28 Hot Plasmid Technologies from 2015
TypeBlog Post...fused to a streptavidin core that are able to retain reporter proteins fused to the streptavidin-binding ... the 3’ UTR of the reporter mRNA via an MS2 coat protein (NLS-MS2-RFP) the reporter mRNA, which contains...their reporter mRNAs. Using the TRICK plasmids, Halstead et al demonstrated that 91% of reporter mRNAs...customized fluorescent reporters can be challenging enough, but incorporating multiple reporters into a single ...pyralis) reporter plasmids for use in high-throughput screening of pre-mRNA splicing. This reporter system...activation or repression. The TCS light sensors described in ACS Synthetic Biology (2014) represent the newest... from the reporter construct. The sgRNA targeting Gaussia luciferase can be easily replaced with an sgRNA...