Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Protein-aptamer gel electrophoresis help, please??

Hi, I have problems with running gel electrophoresis. I have tried agarose gel electrophoresis and native PAGE. I have two proteins, which have molecular weights of ~30kDa and ~180kDa and two...

03 March 2021 4,275 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 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

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

How to discriminate between Sentinel-2 Level-2A Product Discriminators?

According to the Sentinel-2 user guide here (https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/naming-convention), the compact naming convention is arranged as...

21 February 2021 5,919 9 View

How to get the vector of a specific vibration mode in phonon dispersion?

For example, I have this phonon dispersion(Fig. 1), and now I would like get vector of atoms which describes TA1 in P. I know v_sim can show vibrational animation of specific mode, but I do not...

20 February 2021 4,332 4 View

Blast analysis of RC,UHPC slabs using material model *MAT_72R3 in LS-DYNA?

20 February 2021 5,984 3 View

What influences inter-day reproducibility in UPLC-MS/MS analysis?

I was analyzing some metabolites in human plasma. While the intraday precision of these metabolites was acceptable ( less than 20%), the interday precision was quite large. So what influences...

13 February 2021 9,183 9 View

Plasmid amplification in S2 cell?

When co-transfect S2 cell with selection vector (pCoHygro or pCoBlast ) to make a stable cell line, does the gene integrate into the genome or just like E.coli? How do the plasmids amplify within...

09 February 2021 5,423 1 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

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

Would using an asRNA for repressing transcription of a high expression Listeria monocytogenes non-coding RNA harbored in a plasmid be a viable option?

Hello all, I am interested in deleting a highly expressed non-coding RNA located on a Listeria monocytogenes plasmid. Currently, there are not any optimized gene deletion methods for Listeria...

09 February 2021 4,994 1 View

Could someone please suggest a suitable program for assembling plasmids containing repetitive sequences from short paired-end reads?

Hello! I'm trying to assemble some plasmid vectors that contain two repetitive regions (with around 500 and 250 bp) and it is being hard to get the complete sequence. If someone knows a better...

03 February 2021 6,379 3 View

Multicloning in pRMC2?

Hi all, I want to express several genes in S.aureus by using the pRMC2 expression vector. I want to try to subclone some genes already cloned into pRMC2 (and their own tetO promoter) and put them...

01 February 2021 5,108 3 View

What are the benefits exactly of synthetic intron (IVS) and internal ribosome entry site (IRES) on a plasmid?

Hello everybody! so I have a plasmid which has a synthetic intron (IVS) & an internal ribosome entry site (IRES), and I'm thinking to remove them as I'm cloning due to some matters related to...

26 January 2021 7,645 2 View

Can I RNase A treatment my extracted plamid?

I have extracted the plasmid with the Qiagen maxi Endofree kit. the result of gel electrophoresis for this sample showed a band of degraded RNAs. Now, I want to remove RNAs from the eluted plasmid...

25 January 2021 2,958 3 View

Can you suggest some plant transformation vectors that I can use for the expression of GFP/YFP-tagged protein of my interest?

I want to generate stable Arabidopsis transgenic lines expressing my protein of interest fused with GFP/YFP under the control of its native promoter. I want this for localization studies. Please...

23 January 2021 2,790 3 View

How to select substrate concentration to determine the inhibitor behavior as competitive or non-competitive?

I already calculated the IC50 value of the inhibitor against the protease enzyme. Now I need to find this inhibitor competitive non-competitive. I decided to perform the Lineweaver Burk plot, but...

21 January 2021 8,378 3 View

Why is there no fluorescence if GFP-expressing vector is present and sequence is correct?

We recently constructed a plasmid vector with a high-copy number ori, kanamycin resistance, and eGFP under control of the lac promoter but lacking the lac operator. However, the cells are not...

19 January 2021 7,834 2 View