Dna Cleanup Step
Dna Cleanup Step - Related Videos
21:24
Methylated DNA Immunoprecipitation
0 Views •
Cited by 43 •
2009
This video demonstrates the protocol for methylated DNA immunoprecipitation (MeDIP). MeDIP is a two day procedure that selectively extracts methylated DNA fragments from a genomic DNA sample using antibodies with specificity for 5 -methylcytosine (anti-5 mC).
09:17
Structure-Based Simulation and Sampling of Transcription Factor Protein Movements along DNA from Atomic-Scale Stepping to Coarse-Grained Diffusion
0 Views •
Cited by 2 •
2022
The goal of this protocol is to reveal structural dynamics of one-dimensional diffusion of protein along DNA, using a plant transcription factor WRKY domain protein as an exemplary system. To do this, both atomistic and coarse-grained molecular dynamics simulations along with extensive computational samplings have been implemented.
12:03
Protocols for C-Brick DNA Standard Assembly Using Cpf1
0 Views •
Cited by 4 •
2017
CRISPR-associated protein Cpf1 can be guided by a specially designed CRISPR RNA (crRNA) to cleave double-stranded DNA at desired sites, generating sticky ends. Based on this characteristic, a DNA assembly standard (C-Brick) was established, and a protocol detailing its use is described here.
09:20
Step-by-Step Stapedotomy through Transcanal Exclusive Endoscopic Approach
0 Views •
Cited by 3 •
2022
The aim of this article is to provide a step-by-step method for endoscopic stapes surgery from operating room setting and patient positioning to post-operative care. This work would represent a guide for any otologic surgeon who is willing to treat otosclerosis with endoscopic transcanal technique.
06:40
Seven Steps to Stellate Cells
0 Views •
Cited by 67 •
2011
Here we describe a method for the isolation of hepatic stellate cells from mouse liver. For stellate cell purification, mouse livers are digested in situ and in vitro by pronase-collagenase treatment prior to density gradient centrifugation. This technique yields highly pure hepatic stellate cells.
FAQs
The process uses selective DNA binding to retain the target nucleic acid on a silica membrane or magnetic particles. Washing then removes substances that do not remain associated with the binding material, including primers, unused nucleotides, proteins, enzymes, and salts. This separation leaves the DNA in a form better suited for subsequent genetic analysis.
These contaminants can inhibit enzymes or interfere with signal detection during later analysis. Because PCR, sequencing, cloning, and fragment analysis depend on reliable molecular reactions or measurable signals, residual sample components may reduce result quality. Removing them before the next step helps the intended DNA template perform more consistently and improves experimental reproducibility.
Washing removes materials that remain after DNA has selectively bound to the purification surface. The targeted substances include primers, nucleotides, proteins, enzymes, and salts, all of which may interfere with later reactions or detection. Effective washing therefore links the binding stage to a cleaner final template without changing the purpose of the downstream genetic assay.
After contaminants have been removed, the purified DNA is eluted in a clean solution. Elution releases the retained template from the silica membrane or magnetic particles so it can be transferred to a downstream application. The resulting preparation provides a cleaner input for procedures that require DNA with reduced interference from residual reaction components.
Researchers may place this purification step before PCR, sequencing, cloning, or fragment analysis when the DNA sample contains components that could inhibit enzymes or interfere with signal detection. Its value is greatest at the transition between an earlier DNA-processing reaction and a measurement or amplification step that requires a cleaner template.
Consistent purification helps produce higher-quality DNA templates for downstream testing. By reducing unwanted substances before PCR, sequencing, cloning, or fragment analysis, it supports more reliable reactions and clearer signal detection. Applying the step consistently also strengthens the accuracy and reproducibility of molecular experiments, making results easier to compare across samples or runs.