We narrowed to 602 results for: sam

...It will be from the same host species, have the same Ig subclass, and be in the same fluorophore (e.g.,...controls An isotype sample is prepared very similarly to a FMO sample: you make a sample from a combined ...your samples. The single color controls should be used as a starting point, to preserve your sample, and...experiment. To make an FMO sample, you take a subset of your experimental samples, combine it into one well...controls will help you save on sample volume, so you can use most of your samples for flow analysis rather ...various controls to help you set up and analyze your samples. While you are probably familiar with the basics...controls (Figure 1A), instead of using your actual samples. They may also be used as a starting point for ...

...with each sample. Successfully analyzed samples will display the following parameters: Sample - The unique...multiplex sample, ICE includes visual representations of all detected edit types in the sample. The visualization...the ICE software has two analysis formats: sample by sample analysis, which can compare up to five editing...results and a list of the analyzed samples (see below).   If the sample run had no issues, the analysis ...perform more in-depth analyses on each sample by clicking on the sample name or on its corresponding bar graph...file. On the plot, the green (edited sample) and orange (control sample) lines should be close together before...files and provide basic information such as your sample names and guide sequences, and ICE will do the ...

... your experimental samples In order to do compensation on your experimental samples, you will first need...experimental samples. Let's look at an experimental example in Figure 2. Figure 2A shows the sample prior to...Compensation example based on experimental sample. Flow plots showing a sample before (A) and after (B) compensation...apply to your experimental samples as they did with your single control samples: if the population needs...fluorescent channel to another. When you label your samples with multiple antibodies, the fluorescent probes...general, if two fluorescent markers are read by the same laser, they will need to be compensated for one ...cytometer reads out the fluorophores FITC and PE on the same laser, you will need to compensate between the two...

...highly complex hot spring sample. The sample was separated into smaller samples of 5-10 cells each for sequencing... Mork collecting samples at the hot spring. Hiking all day and processing samples by night was fun...leave your samples behind! Paul and Anastasia (Potanina) Neddersen characterized a few samples by 16S ...biological dark matter and so the lab organized a sampling trip to Yellowstone National Park (YNP). Extremophiles...from these extreme environments. Gearing up for sample collection at the hot springs My husband, Paul ...post doc in the Quake Lab, volunteered to do the sampling and I happily agreed to accompany him to YNP the... and two deep cycle batteries for power so the samples could be kept frozen after collection. Figure...

...time.   Samples can run into empty neighboring lanes, so load your gel to ensure your samples and reference...protein-based buffer (FBS, milk, etc.) against the same amount of sample.  If you’re using chemical blockers, you...gradient, compare your diluted samples. If multiple dilutions are showing the same signal (Figure 3B), that ...of protein in your samples. If you have a wide variety of protein amounts on the same blot, you may want...gradients. Protein gradients use dilutions of your sample or protein of interest to understand the dynamic...reagent gradient. In this approach, you’ll run the same protein concentration in multiple lanes and cut ...first step in any western blot is to lyse your samples. There are a few issues that can arise in this ...

...you’re working with a tissue sample, you’ll need to homogenize your sample before moving on to the next...Homogenization for a tissue sample can also need significant optimization for the sample type and size.) It can...process is very similar for both, though tissue samples do require an extra homogenization step. For this...to focus on the ChIP process and not the upsteam sample collection process or the downstream analysis process...itself begins at...  Crosslinking Once you have your sample, the first step is to ensure your protein:DNA complexes...likely to remain attached to the DNA throughout the sample processing and therefore will require crosslinking...Typically, this can be done by cutting the tissue sample up and then processing with a homogenizer, but ...

...we just made the sample bigger? In ExM, and its various derivatives, biological samples are enmeshed in...label) your sample (i.e. cultured cells or tissues).  Step 2: attach anchors to your sample that will link...the number of specific targets you can label in a sample. Super-resolution microscopy (SRM), a family of... its original size. Depending on the protocol, samples can be expanded to ~4-10x linearly! This expansion...gel components to polymerize. Step 3: digest the sample to allow for even expansion.  In some cases, labels... ExM process allows you to physically magnify a sample so you don’t have to optically magnify quite so... no exception. First, expansion requires fixed samples. This limitation may be the both most obvious and...

... adjusted depending on the sample. It is important to remember that sample lysates will also contain proteases..., incubate the sample as you would in an IP using a nonspecific antibody from the same host species as... from the sample prior to beginning the IP.  During the IP, the target protein in the sample binds to ...parallel with both a sample known to express the protein of interest, such as a sample transiently transfected...out in one of two ways. Both methods utilize the same basic strategy: immobilize the antibody or antibody-target... if the antibody used for IP is derived from the same species as the antibody that will be used for detection...protein/antibody interactions To prepare for an IP, samples are typically lysed in a non-denaturing buffer ...

...comparisons. Paired and unpaired t-tests Samples that come from the same subject or population - before and ...referred to as two-sample or independent, but these designations all refer to the same test. On some occasions...five-sample data set yields statistical significance, you won’t know if only two of those samples are ...appropriate to use if all sample comparison is needed, without a high number of samples (~5). Tukey’s test ...you are solely interested in whether or not two samples are statistically different than one another, a... direction (i.e., you just want to measure if a sample is greater than a control), then a one-tailed test...assesses the sum of differences between pairs). Samples arising from different subjects or populations ...

... from many bacterial samples at the same time as opposed to preparing each sample individually. Enter ...easy to spread out your samples. This can be useful if you’re transferring samples from 96 wells plates ...developed a protocol to run up to 192 samples at a time. It follows all the same steps and uses the similar buffers...device fits on the deck, and it’s easy to pipette samples in and out of it, you can set up a procedure for...compared to doing about 50 transformations in the same amount of time by hand! Setting up a basic protocol...buttons you can quickly tell the Biomek FxP how much sample to pick up, where to move it, and how long to keep...mobile pods - one pod can pick up 96 tips for easy sample transfer between 96 well plates. The second pod...

...only antibody option is from the same species as your tissue samples. The bad news: this situation is ...excess secondary with serum from the same species as your primary/sample, and then applying this mixture to...from the same species and 2) these fragments will be more likely to bind (and block) the same epitopes...processing and sample preparation can also help reduce the levels of endogenous IgGs in your samples, but know...The culprits are endogenous IgGs in your tissue sample. Most common IHC protocols use two antibodies -... the first antibody. When endogenous IgGs of the same species as your primary antibody are present, your...staining (Figure 1A). Not all tissues will have the same levels of endogenous IgGs, so some researchers can...

...was raised in the same host species, of the same Ig subclass, and conjugated to the same fluorochrome as...ensure that samples are single cell suspensions. For cells that tend to aggregate, pass the sample through...single-stained samples for each fluorochrome in the experiment. Single-stained samples must be as bright...experimental sample. In addition, you should include a panel of “fluorescence-minus one” controls, samples stained...specific populations of cells in a complex tissue or sample (1). When combined with cell sorters, this technology...cells pass through the flow cell the size of the sample stream is reduced forcing the cells to line up ...information about the cell. Light that continues in the same direction as it was initially traveling is called...

...each individual sample, this will reduce convenience and comparability because each sample with be quantified... low-concentration samples can also behave differently in PCR, even if both samples fall within the linear...reference sample of known titer, which is at a higher titer than the AAV RSM. By using these samples in all... titer values of new AAV samples. We also typically quantify our AAV sample by two qPCR assays and compare...et al., 2010). However, for recombinant AAV2, the same study reported a physical-to-infectious particle...amount of starting material in the PCR because the sample must fall within the linear region of the standard...of the assay. In other words, repeating the exact same PCR twice can give titer measurements that vary ...

... recognize different epitopes of the same protein, show the same pattern of labeling, this is supportive...detecting the target-of-interest in your assay and sample-of-interest. The approaches available broadly map...determining the selectivity of antibodies for other sample types and for non-surface (intracellular) antigens...protocol used and the abundance of the epitope in the sample, relative to cross-reactive antigens – that is,...approaches used will be different depending on the sample and target type. To start the validation process...the target at a robust level, similar to that in samples of interest. If you are working with cells that...used with mixed populations of cells, like a blood sample containing many different leukocytes. Where data...

...protect fragile samples during cryo-EM grid plunge freezing By Rachel Leeson Cryo-EM samples can be damaged...and structure determination LEA proteins protect samples during cryo-EM grid freezing Engineered and evolved...antibodies for marking astrocytes MagIC-Cryo-EM for sample enrichment and structure determination By Mike ...enrichment streamlines the purification and minimizes sample loss while also supporting imaging, making it easy...cryo-EM grid.     Figure 1: MagIC-cryo-EM for sample enrichment and structure determination. A) Schematic...beads for scarce macromolecules in heterogeneous samples. bioRxiv 2024.01.21.576499; doi: https://doi.org...(AWI) during the freezing process, resulting in sample loss. Ci Ji Lim’s lab found that adding Late Embryogenesis...

...wells with an experimental sample allows for detecting one protein from the sample. A direct ELISA has many...require scientists to detect proteins in their samples. One technique that relies heavily on antibodies...principle of an ELISA is that any antigen within a sample adheres to the well (either directly or by binding...antibodies coating the wells to capture antigen from a sample, whereas antigen is bound directly to the wells...protein you are interested in detecting in your sample. When an ELISA kit is ordered, the wells are typically...already coated with the antibody. Then, you add your sample to the wells, and the antibodies bind to your protein... a monoclonal antibody) that also recognizes the same target protein. The capture antibody and the detection...

... permeabilize a sample. But you can also use organic solvents after fixing your sample with a cross-linker...the point?  Fixation allows you to freeze your samples in a given state or point in time. You want to ...processes while maintaining the structure of your samples, the relationships between cellular components,... molecules and it is great for preserving your samples and maintaining cellular and tissue morphology....formaldehyde solutions.  Along with preserving your sample, cross-linking can block the epitope of some targets...sensitive to cross-linking, but it doesn’t preserve sample structure quite as well as a cross-linker. This...during fixation with these chemicals, which impacts sample structure and could also cause your target to be...

... results (Goutaudier et al., 2019). Using PSAMs PSAMs PSAMs, or pharmacologically selective actuator modules...interactions and still set off the same pathways, giving rise to the same cellular responses. The cellular...working with PSAM receptors, your impact on the cell is determined by what IPD your PSAM is combined with... will promote hyperpolarization. PSAM ligands The advantage of PSAMs lies in their ability to be specifically...manipulate. It is important to consider that the same receptor can elicit different responses depending...currently used in chemogenetics are DREADDs and PSAMs. Using DREADDs DREADDs DREADDS, or designer receptors...activation and reduced off target activation by ligands. PSAMs themselves are modified ligand binding domains. ...

...thiols, to cleave disulfide bonds. Load the samples, one sample per lane, onto the top of a resolving gel...all of the proteins in a sample migrate through the stacking gel at the same pace and enter the resolving...consistent size and density present in all samples. Uneven sample loading or incomplete protein transfer ...Figure 1: Overview of the Western blot process. The sample, a mixture of protein is separated in a gel, transferred...is the first step of a western. To prepare the samples for SDS-PAGE, measure the protein content and normalize...normalize to ensure equivalent loading. Denature the samples to their primary amino acid sequence by boiling...crosslinked polymer acrylamide. In addition to the samples, a protein standard of known molecular weight in...

...antibody signal in the retinal sample, but little to no signal in the liver sample, which you do (C), so your...epitopes on the same target reduces the likelihood that both antibodies would bind to the same off-target ...to - particularly when you start using complex samples such as whole cell lysate or tissue sections. It...require variable expression of your target across samples - it is hard to distinguish between specific, invariable...there is a wealth of transcriptomic data from this sample type, so you use your bioinformatics skills (or...Removing (or reducing) the protein of interest in your sample, should lead to reduced or eliminated antibody ... signal between your control and your knock-out sample, you should be concerned that your antibody is ...