I want to calculate the extinction coefficient of duplex, is it the sum of extinction coefficient of individual strand ? Or is it the average ?
The answer is no. The extinction coefficient of double-stranded DNA is less than the sum of the extinction coefficients of the individual strands. This property is known as hypochromicity. It is caused by the stacking of the bases in dsDNA.
Is there any way to determine the extinction coefficient than ?
Have a look at this:
https://www.atdbio.com/content/1/Ultraviolet-absorbance-of-oligonucleotides#Hypochromicity-and-double-stranded-DNA
Hey, Have a look at this link.. might be of some help ..
https://www.promega.com/-/media/files/resources/application-notes/pathlength/calculating-nucleic-acid-or-protein-concentration-using-the-glomax-multi-microplate-instrument.pdf?la=en
I want take image of some soft matter that is in quartz capillary. Is there any way ?
01 February 2018 915 12 View
I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance
03 March 2021 3,568 1 View
I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...
01 March 2021 8,544 1 View
We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...
01 March 2021 3,355 3 View
Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...
26 February 2021 5,029 2 View
Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...
25 February 2021 6,969 3 View
I am trying to better understand the scope of DNA replication and sequencing errors, e.g. 1. I have seen similar error rates of 10e4 to 10e5 for cell & instrumental DNA replication,...
24 February 2021 4,397 3 View
Dear colleages, Eta squared is dominantly used in reflecting the explaining power the same manner as a squared partial correlation coefficient (R2p ) from multiple linear regression: as the...
22 February 2021 7,801 3 View
I got a thin band and a thick band i guess it would be the genomic DNA and the 260/280 ratio is 3.
21 February 2021 6,523 6 View
I constructed a synthetic DNA library (scFv, VH-VL orientation) with a 3' reporter and 8x histag. I cloned and expressed this gene following which I performed an ELISA. The ELISA results suggested...
19 February 2021 7,006 5 View
17 February 2021 4,217 3 View