What is the role of Onchocerca Ochengi in the spread of diseases in animals and humans?

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Is it possible to conjugate an NHS ester to the N-terminus of a peptide ON RESIN?

So i have a few peptides (synthesized by SPPS and not cleaved from resin) and I want to add a maleimide label. We have NHS-PEG-Maleimide and from literature it is evident that the free amine group...

18 July 2024 4,075 3 View

Hot to do MTT assay data analysis?

I have repeated an MTT assay three times using different batches of the same cell line. Each time, I tested the same treatment (different medium) and seeded the same number of cells. Additionally,...

08 July 2024 1,900 1 View

What is wrong with Site-Directed Mutagenesis?

I am following the NEB protocol to perform SDM with Q5 and NEB HiFi Assembly. I am making a two base pair change. First picture is my Primers designed with NEBaseChanger. Second Picture is my...

24 June 2024 6,079 4 View

Does anyone have suggestions for this esterification?

I have a very polar alcohol (soluble in MeOH, H2O, partially in heated DMSO). And a long chain fatty acid that I would like to couple. I can't find a common solvent for them. I can form the...

24 June 2024 9,319 0 View

How do you add multiple nodes or cutting planes in Abaqus?

Hi, In a previous question I asked how to effectively model springs in Abaqus. However, I figured out the feature under Assembly -> springs/dashspots -> node to node Springs. I have a cylinder...

20 June 2024 892 3 View

How do you add radial spring elements in Abaqus?

Hi, I am trying to complete a buckling analysis on a tube with an external pressure. This solves itself easily by adding radial constraint on the internal edge of the tube, one axial constraint...

17 June 2024 8,165 7 View

Given that Mesozoic placentals were largely arboreal (with fingers), do you know of any studies that illustrate the finger-to-hoof transition?

I'm interested in the earliest days of placental terrestrial locomotion in large herbivorous taxa. Phenacodus seems to be transitional in this regard. Any others?

06 June 2024 5,182 2 View

How reliable is ninhydrin test in solid-phase peptide synthesis?

Hey everyone! I'm doing peptide synthesis on Rink amide resin and sometimes I need to add amino acids with secondary amines or beta amino acids. Normally I synthesize 35 to 40 mer peptides. As a...

21 May 2024 9,035 0 View

How does one generate a normalized TCSPC curve from actual photon counts versus time?

Sometimes TCSPC curves are analyzed using the actual photon counts, and sometimes they are normalized with the signal running from 0 to 1, or even from 0 to some value less than 1. What quantity...

20 May 2024 4,277 0 View

Problem when running Spin-Orbit Coupling using CASTEP. What is nlpot_prepare_precon_ks?

I am currently using CASTEP version 22.11, and I encounter the following error when running calculations with spin-orbit coupling: Error with dsytrf in nlpot_prepare_precon_ks Current trace...

19 May 2024 4,236 5 View

How to load and plot 2D-PIV (particle image velocimetry) recorded velocity vector field in Techplot?

Dear Researchers I need to know, how to load and plot 2D-PIV (particle image velocimetry) recorded velocity vector field data in Tecplot? Thank You

02 August 2024 3,615 1 View

Transfection in HEK293T cells?

Dear All, I am trying to transfect a pCDNA3.1 vector containing my gene of interest. The purpose is to figure out the localization of the protein of interest. I have fused the protein with GFP on...

31 July 2024 9,892 4 View

I need help with cloning a 200 bp insert and a 4,7 Kb pEGFP-N1 vector. How can I do it?

I've been trying to clone my N-terminal inserts in the comercial pEGFP-N1 vector. Initially, I cloned my N-terminal insert into a pGEMT-easy vector to ensure that the insert digestion was done...

09 July 2024 4,277 1 View

Cloning restrction digestion needed before sequencing?

Hello, recently i am an issue swith cloning where I am using the subclone method to insert my gene length is 1.5kb and my vector(pMAL-c6T) is 5kb I got the colonies which i screened through the...

04 July 2024 7,977 2 View

Why I am unable to get the expected insert at the cloning site?

I am trying to clone a gRNA (23 bases) into the Crispr cas9 pDirect23A vector by using restriction enzyme cloning. I have performed a complete experiment, starting with plasmid isolation,...

02 July 2024 5,448 2 View

What could be the expression profile of alkaline phosphatase from lactic acid bacteria?

I have already cloned ALP gene of L rhamnosus into pET22b+ vector. Cloning is already confirmed by restriction digestion and sequencing. Cloning is achieved in BL21(DE3), Codon+, Rosetta and Lemo...

02 July 2024 5,332 3 View

List Plasmid suitable for Homology cassette in CRISPR-Cas9 protocol for Knock-In in mammalian cell line ?

Hello, I am working on creating a mutant endothelial cell line having Neomycin knock-in present, I have designed my homology arms of 1kb size having neomycin in between them, I would like to...

25 June 2024 1,197 0 View

How can I convert remote sensing (RS) images to vector data automatically?

I am working on a project that involves analyzing remote sensing (RS) images. I need to convert these images into vector data for further analysis. I am looking for automated methods or software...

22 June 2024 6,165 2 View

Asking for a vector, containing Hygromycin B resistance gene?

In my work, Hygromycin B resistance gene is require for screening. I tried to amplify this gene from the vector pIJ941 but failed. I will be thankful, if anyone help me out from this problem by...

19 June 2024 7,822 3 View

Intracellular parasite of chlamydomonas?

Does anyone have experience with parcitism of Chlamydomonas? We have a highly infectious parasite in our lab and can't find much information on it. I've attached some images.

11 June 2024 9,638 2 View