Does anyone have a detailed protocol for PEG mediated plasmid DNA transformation? Which MW should PEG have for a plasmid of 8.6kb?
Thank you in advance.
This is a protocol for fungal transformation.
Disolve 8g of PEG 3350 in 2 ml of water. ( final volume 10 ml )
Prepare 2X STC.
Add 3~5 ug of plasmid DNA to 200 ul of protoplast.
Wait for 10minutes.
Mix 500 ul of PEG with 500 ul of 2X STC.
Add 1 ml of PTC ( PEG + STC ).
Wait for 20minutes.
Incubate in a shaker for 6 hours at appropriate RPM and regenerate
with appropriate media and selected antibiotics.
We have done this and you can see the protocol in the paper: http://www.plantphysiol.org/content/132/2/988.full
We used PEG 1450.
The paper is available on my profile as well.
Best,
S
Thank you@ Shin and Bhullar.
These protocols can work with filamentous fungi (Colletotrichum truncatum)
In metal oxides how oxygen affect the electrical and magnetic properties? Also, how it impacts the EMI shielding performance. Please make discussion.
05 June 2024 483 0 View
I want to make reconfigurable RF and microwave filter, I need to connect low capacitance (minmum-0.048pF) varactor diode (MA46H120 Series). Can we use this varactor diode (MA46H120 Series) at 6...
21 May 2024 7,504 2 View
We have elastic scattering excitation function data in tabular form and want to obtain partial wave scattering phase shift data for each partial wave say l=0, 1, 2....whats the process to do so...
19 April 2024 2,225 1 View
I have used the DLS machine (Zetasizer Software) to measure the size of micelle prepared. For the first 2 runs the quality report shows "Good", while the 3rd measurement shows as "Too...
17 April 2024 4,491 3 View
I am working on identification of copy number in a recombinant Chinese hamster cell line by southern hybridization. I am having issues with the transfer of DNA onto positively charged nylon...
08 February 2024 2,647 8 View
We did reaction of alpha-bromo-gamma-butyrolactone with aq. ammonia solution at RT to get alpha-amino-gamma-butyrolactone. Reaction completed on TLC. Water distilled completely but unable to...
07 February 2024 5,766 0 View
I tried different protein assay kits (BSA, fluorometric peptide), but it didn't work.
25 January 2024 3,341 0 View
For example, Data obtained from a rheometer is as follows 1. Static yield stress - 1400 Pa, 2. Dynamic yield stress- 640 Pa, 3. Plastic viscosity-68 Pa-Sec, How are these values exactly...
24 January 2024 6,120 0 View
while working with low concentrated mammalian genomic DNA, can we increase the restriction digestion reaction volume to 200 ul to accommodate the required amount of mammalian genomic DNA for...
22 January 2024 6,952 12 View
how to select quality journal for publishing research work
11 December 2023 154 3 View
I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...
09 August 2024 9,621 0 View
Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...
09 August 2024 2,824 3 View
I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...
07 August 2024 7,535 4 View
Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...
07 August 2024 8,106 4 View
Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...
06 August 2024 641 2 View
How do soil microflora interact with plant roots and influence plant nutrition, health, and productivity?
06 August 2024 9,618 3 View
Hi, I know that low molecular weight (MW) molecules generally tend to have higher mobility, while high molecular weight molecules tend to have lower mobility. However, in my experimental...
06 August 2024 1,495 2 View
After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...
05 August 2024 9,637 2 View
Brain and body mass together are positively correlated with lifespan (Hofman 1993). The duration of neural development is one of the best predictors of brain size, and conception is the best...
05 August 2024 6,247 3 View
kindly reply me. Thanking you in advance.
05 August 2024 7,727 4 View