Developing hCG, FSH, LH biosimilar ?

Hi, We into developing hCG, FSH, LH biosimilar expressing CHO clones. Want to collaborate, or seek consultancy from the experts in the field. regards,

08 September 2018 4,072 0 View

Immortal heterohybridoma line secreting monoclonal anti-D antibodies ?

If any scientist ihas developed a Immortal heterohybridoma line secreting monoclonal anti-D antibodies, we are keen to collaborate to take the research to clinical level for conducting the...

08 September 2018 4,628 0 View

TGE is working but not SGE in DG44 cells ?

Our lab is working on developing the stable gene expressing clone in DG44 cells,. After transfection, transient gene expression is working, after growing the cells in the media with out GHT and...

07 August 2018 7,212 3 View

What is the difference in running a E.Coli Fermentor and Mammalian CHO cell bioreactor ?

what is the difference in running a E.Coli Fermentor and Mammalian CHO cell bioreactor ?

11 December 2017 5,219 0 View

Want to learn the 5'-ITR and 3'-ITR sequence of the Sleeping beauty transposon ?

Want to learn/know the 5'-ITR and 3'-ITR sequence of the Sleeping beauty transposon for designing the experiments working with Sleeping beauty transposase.

10 November 2017 3,667 3 View

Expression improvement in0 DG44 CHO cells and NANA glycosylation ?

Working on the DG44 CHO cells for recombinant protein expression, we have been getting the low expression of 0.5ug/ml recombinant protein and also Gal-a(1,3)Gal glycosylation of protein....

08 September 2016 8,016 1 View

Why restriction enzyme Sap1 does not cut the circular plasmid ?

06 July 2016 8,177 3 View

Want to express hCG (alfa hCG + beta hCG) using human albumin signal peptide ?

Beta hCG expression is not seen, took of native signal peptide (20aa) of beta-hCG and replaced with human albumin signal peptide (18aa). Still B-hCG expression is not seen in the HEK293 cells. We...

03 April 2016 6,363 2 View

Two hundred USD Award for designing the Plasmid ?

We are working with pDUO2 plasmid and after transfecting it getting low expression of protein. I want to place A2UCOE sequence [HNRPA2B1 and CBX3] before the promoter for better expression, if any...

06 July 2015 3,510 2 View

How do I introduce UCOE region before the hCMV promoter in the plasmid?

Want to introduce UCOE region before the hCMV promoter in the pDUO2 plasmid already cloned with gene alpha and beta at MCS1 and MCS2,how to do this.

06 July 2015 5,717 2 View

Can linear DNA be used as template for site-directed mutagenesis?

Is it possible to induce site-directed substitution mutation by quick-change method on linear dsDNA? or it has to be cloned in some vector? If yes, should it be treated with the Dpn1 enzyme...

03 March 2021 401 4 View

Does anyone have a recommendation for yeast reporter gene plasmid/protocol?

Hi, could anyone recommend a plasmid and/or protocol for reporter gene assay in S. cerevisiae? I want to assess the effect of growth conditions on a transcription factor, so I want to clone it`s...

01 March 2021 210 1 View

Do anyone here can help us in the field of molecular docking?

We have synthesized various metal complexes with different environment around the metals. Now to see the application of synthesized complexes we need this study also. we are also interested in...

01 March 2021 1,899 2 View

Expression cloning by using cDNA,do I need to modify the cDNA first?

I am going to have a expression cloning of mammalian gene by using shuttle plasmid to transforming the E.coli However I don't know I should only inserting the Coding sequence ,or I can...

28 February 2021 5,440 3 View

Did anyone ever try using pLVX-TetOne Plasmid with a copGFP as a selection marker instead of Puromycin?

When using a lentiviral vector for inducible expression of genes using the Tet-On system. In the literature, I saw a widely used of pLVX-TetOne-Puro Plasmid, is there a reason why people prefer to...

25 February 2021 1,011 3 View

Is there any one who can provide a donation of HPV detection and genotyping kits in exchange collaboration fors?

Warm greetings My name is Ayichew S. and I am doing my Ph.D. in Medical Microbiology (on Human papillomavirus). At this stage, I have almost completed a clinical sample Cervical swabs)...

25 February 2021 1,660 3 View

Difficulty in cloning of 1kb gene into vector?

I am facing difficulties in cloning a 1kb gene into a vector (pJIT163). I have my gene on interest (GOI) in pUC57 and want to clone in pJIT163 using SalI and BamHI restriction sites. I am getting...

25 February 2021 3,221 7 View

How to use protein A G beads to purify antibody?

Secretory universal influenza antibody CR9114 were successfully expressed by adenovirus vector ,then we used protein A G beads purify CR9114.But the molecular weight of the purified antibody under...

22 February 2021 4,318 2 View

Why are Sanger Sequencing reads interrupted in some edited clones?

I have a Crispr/Cas9 edited bulk population and I can briefly check the indel ratios in the bulk population using Sanger sequencing. After cloning single cells, I wanted to check the indel types...

18 February 2021 8,198 6 View

Hi, can anybody help me with the suggestions how can I amplify a stress induced gene of 1107 bp?

I am trying to amplify the TGA1 (Transcription factor 1 ) of Arabidopsis ,which is 1107 bp. I have treated the plants with Salycylic solution over night and extracted the RNA and make cDNA. I...

17 February 2021 7,802 2 View