What is the minimum concentration of melanin in DNA extraction, so that it does not inhibit PCR?

Andrea Anshy Jácome @Andrea-Jacome

20 October 2019 1 2K Report

Melanin concentrations for optimal PCR result

Paul Rutland

This publication if your college has access looks useful

Article Melanin Binds Reversibly to Thermostable DNA Polymerase and ...

Badges
Science method

More Andrea Anshy Jácome's questions See All

Where should the ARS sequence be introduced on a plasmid?

Hi all, I need to introduce an ARS (autonomously replicating sequence) in my plasmid but I'm not sure which position would be the best. Does anyone have any suggestion? A picture of the plasmid...

05 August 2024 1,573 4 View

Use magnetic bead purification after gel electrophoresis?

Hi, I am working with Invitrogen Seamless cloning which requires 200 ng/ul insert DNA fragment. Protocol recommends to use restriction enzyme to digest pre-cloned plasmid and then elute specific...

25 June 2024 971 2 View

How to set up focus groups in the face of generational barriers?

I am carrying out a research project in which I am conducting focus groups with older men and women to study the musical stereotypes learned in traditional Spanish oral music groups, but I am...

10 May 2024 3,852 3 View

What is the best LC/MS system for surfactant analysis?

We are an R&D laboratory focused on anionic, cationic, and zwitterionic surfactants and usually tackle surfactant synthesis and analysis of products from customers. In particular, we deal with...

29 April 2024 8,927 1 View

Why is there no 28S RNA in mouse sceletal muscle?

We are isolating total RNA from mouse sceletal muscle, using the beads beater with the sample already being in Trizol, afterwards chloroform extraction and finally Qiagen RNeasy kit. On the TAPE...

29 April 2024 3,952 5 View

What’s the most used inclusive leadership assessment scale?

I’m looking for an inclusive leadership scale to include in a mediation analysis with psych safety and workplace belonging, what would you use

27 April 2024 6,072 2 View

COMET ASSAY: Why do cells disappear?

Greetings, I am trying to set up an alkaline Comet Assay. I have no previous experience with this type of assay, unfortunately, so I am doing a lot of trial and error. After embedding my cells in...

23 April 2024 6,534 0 View

In what ways does the Sysmex DI-60 streamline laboratory workflow and improve laboratory efficiency in terms of reduced TAT?

This question is directed on the performance of the Sysmex DI-60 digital morphology analyzer and its contributions on the improvement in the laboratory workflow. I am curious as to what...

10 April 2024 3,069 1 View

Aside from a lack of understanding, what other variables contribute to antibiotic diversion in low-income countries such as the Philippines?

It is known that self-medication with antibiotics is an arising problem, becoming a major constituent to antibiotic resistance. Moreover, self-medication heightens the possibility of developing...

09 April 2024 6,644 1 View

What are the most prevalent antibiotic resistance patterns among outpatient populations in the Philippines?

Antibiotic resistance is a pressing global and local health concern. Outpatient settings play a crucial role in antibiotic consumption and the emergence of resistant bacteria due to the frequent...

09 April 2024 6,004 0 View

Is there a problem with my RNA pellet?

Hello, I am currently having problems with RNA extraction. I am using mouse liver (C57BL6J), and I have extracted RNA from mouse liver before. Before this experiment, my final RNA pellets were...

11 August 2024 7,082 3 View

How to confirm the site-directed mutagenesis result without performing NGS?

I'm cloning a fragment of 3200 nts into plasmid. The cloning was successful, however, 02 amino acids were mutated. Now I want to fix these 02 aa by site-directed mutagenesis technique using...

08 August 2024 4,645 2 View

RNA Extraction Using Hot Borate Method No Longer Working?

I've been performing RNA extraction on cotton petiole tissue for a few months now using the method described in the following paper, a derivative of the typical hot borate method...

08 August 2024 9,882 2 View

I can't see the ssDNA band after performing asymmetric PCR. Is there any way to do this?

After performing symmetric PCR, PCR purification was performed. Afterwards, asymmetric PCR was performed using the PCR purification product as a template, but no ssDNA band was confirmed in the...

08 August 2024 1,668 3 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

"A Markov-like Model for Patient Progression"?

A Markov-like Model for Patient Progression" Markov Chain Monte Carlo (MCMC) Markov Chain Monte Carlo (MCMC) is a powerful computational technique used to draw samples from a probability...

05 August 2024 10,079 0 View

Why after performing site directed mutagenesis ,I don't see any colony after transformation?

I want to introduce a point mutation (change in one nucleotide) into my gene of interest (DNA binding domain) I have designed primers as recommended on the Data sheet of the kit : -Both primers...

05 August 2024 9,059 3 View

Why my colony PCR results of my recombinant bacterial not showing any results?

I am performing ligation of the plasmid and a target gene. The steps I have taken are: 1. Double digestion of the plasmid and target gene 2. Ligation of the plasmid with the target gene 3....

05 August 2024 2,570 3 View

Low-yield gel extraction problem?

I am having an issue with my gel image where my PCR product is not appearing very bright on the gel. When I perform gel extraction, the A260/280 purity value is very low. I used the Qiagen gel...

05 August 2024 9,798 3 View

Do you have good tips for seaweed tissue preservation in the field for post RNA extraction?

I will be with my students collecting seaweed samples in a marine farm and later we will process this tissue for RNA isolation and further sequencing. Does anyone have tips on how to collect the...

04 August 2024 501 2 View