Using multiple linear regression to solve a multiple-way ANOVA problem?

Specifically, I want to know if I can use multiple linear regression to predict a response value 'y' from it's associated "treatment" or "group" averages in several variables. Let's say:...

04 November 2020 632 19 View

Somebody know a fast DNA extraction method for plant for to do in the field?

I am looking found reference about people that has been working the proposed method in this publication: "Nucleic acid purification from plants, animals and microbes in under 30 seconds" from Zou...

10 March 2020 860 2 View

Do viruses mutate more when transmitted to another host than when staying within the first host?

I would like to know if there is a published work studying the within-host mutation rate of a virus versus the between-hosts mutation rate, when a direct transmission event occurred between those...

13 November 2019 5,488 5 View

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I have generated a stably transfected SK-N-SH cell line that expresses Amyolid beta 42 fused to the pre-proncephalin signal peptide under de CMV promoter. I checked expression though qPCR and...

23 July 2019 2,685 2 View

Is there a way in matrix algebra to define the operations you want to perform on matrices???

Let's say I want to perform the conventional matrix multiplication, so I define it as "multiply then sum the products" (i.e. "x,+") For example, for matrices A and B: if A = |a b| .........|c...

21 February 2018 6,474 3 View

How to perform an ELISA sandwich with Chylomicrons?

18 September 2017 8,336 8 View

How to perform an ELISA sandwich with Chylomicrons?

08 September 2017 4,123 8 View

Bio-Rad Criterion tris-tricine gel electhophoresis. Which buffer to use?

03 April 2017 9,839 3 View

How to calculate mass of dry Tris base + Tris HCl to dissolve to give a buffer with desired concentration?

I am trying to make a 1M Tris Cl pH8 buffer with dry Tris base and Tris HCl. I know that it is possible to make Tris buffers without the use of HCl by combining powdered Tris acid with Tris base....

02 April 2017 695 4 View

Which are the mechanism that could increase the number of d(GT) repetition in DNA?

How GT dinucleotides repetitions are increased in an microsatellite? Is the replication machinery involved in this phenomenon?

16 January 2017 4,612 2 View

Why might my GFP tag be dissociating from my plasmid after transfection?

I have a set of stably transfected cell lines all transfected with plasmids containing GFP tags on the C terminus. During a western blot using anti-GFP antibody, one of my plasmids has dissociated...

01 March 2021 9,310 4 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View

Do you need the CMV enhancer before the CMV promotor for a proper function of CMV on the gene that follows?

I'm a student and I have to produce a cell line with a knockin for the NRF2 gene with GFP. I have to put a promotor in front of the GFP because the gene will be too far away from the promotor of...

28 February 2021 7,127 2 View

Are protein samples in SDS compatible with ELISA?

I have used an AllPrep DNA/RNA/Protein Mini Kit QIAGEN kit to extract RNA and protein from my samples. At the end of the protein purification, I resuspend my protein in 5% SDS. Will these samples...

28 February 2021 7,370 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

Problem with ligating 2.8 kb insert into 8.5 kb plasmid?

I am trying to clone 2 copies of the same mammalian gene into the pSF-CMV-Ub-Puro Ascl (contains HindIII, KpnI and NheI cut sites) plasmid. This is what the final product is supposed to look like...

24 February 2021 6,310 3 View

What urea buffer can i use for biotagged protein extraction from streptavidin beads?

Hi all, I have been doing research on biotagged LDB1 proteins in Mel cells. I purify the proteins using M280 streptavidin beads. The yield is very low so I've been trying to optimize it by...

24 February 2021 5,749 3 View

Can I use a protein-devoid condition as my negative control in ELISA?

Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...

23 February 2021 7,429 1 View

What is the best way to manage Western blots?

Increasingly, more articles are being retracted because of duplicate or otherwise dubious Western blots. Consequently, journals are asking for original Western blots and authentication of...

23 February 2021 8,609 3 View