What is the cause of the banding obtained after purifying the PCR product with ExoSAPIT?

Hello We are working on a PCR product with an approximate size between 5000 and 7000 bp, we want to use it as a positive internal control, since we have sequenced it and it corresponds to the...

17 February 2021 2,896 3 View

Is this the fragment of a sauropod tooth?

Dear colleagues. Fragments of this species are very rare from a terrestrial Lower Cretaceous locality from Germany. Up to now from this locality sauropods could not be proved with certainty. Other...

14 February 2021 2,310 1 View

Antibody fragments after Dha (Dehydroascorbic acid) re-oxidation?

Hi, I am trying to re-oxidize the disulfide bridges of an antibody with DHA. I always have some good amount of HL fragments (heavy + light chain fragment), despite varying reaction times, pH,...

31 January 2021 9,495 2 View

Gibson PCR and reaction challenges, any tips?

Hi I am having issue's with Gibson assembly, seeing as I am new in the filed of cloning, expert feedback would be very much appreciated I am trying to clone two fragments (frag 1 [185bp, 145bp w/o...

29 January 2021 1,406 2 View

How can I solve this problem with agarose gel DNA purification of bigger (1-4kb) fragments ?

Hi everyone, I perform a PCR + Restriction Digestion (single cut, same at both sides) over a metagenomic library. After that, I am trying to purifiy DNA fragments between 1-4kbp long from the...

24 January 2021 2,190 5 View

I am having trouble with cloning my gene. How can I fix this?

16 January 2021 6,566 8 View

Why am I getting 2 bands for Gibson Cloning Vector PCR?

Hi, I designed Gibson primers (2 primers for fragment and 2 primers for vector) using snapgene. Then I ran PCR separately for Fragment and Vector. Fragment DNA was found to be the correct sized...

11 January 2021 9,500 2 View

Does Tea Garden proves to be an alternative to forest landscape?

Is there possible that the Tea Gardens proves to be an alternative habitat to forest dwelling organisms? If yes, what pressure do they face in relation to anthropogenic pressure?

03 January 2021 429 13 View

Why do I keep obtaining the same secondary PCR band along with the specific product band?

Hello everyone! I need to amplify a specific DNA fragment in order to do Sanger sequencing for the detection of a point mutation in human patients. The fragment is in an exon of my gene of...

25 December 2020 1,805 3 View

Has anyone measured split YFP in a Tecan (Bimolecular Fluorescence Complementation)?

Hello, I've been trying to measure split YFP-constructs using a Tecan. The problem is, i can detect YFP as a whole construct without any problems (so the excitation/emission wavelengths are fine)...

15 December 2020 2,209 1 View