Can I find pdb file of peptidoglycan ligand ?

I need a pdb file of the following ligand : tetrasaccharide-pentapeptide NAM-NAG-NAM(-L-Ala-D-iGln-L-Lys-D-Ala-D-Ala)-NAG . It is part of the peptidoglycan polymer

03 April 2019 7,038 4 View

What is the effect of cation-exchange on the stability of soil particles using enzymes/proteins?

Enzymes can have stabilization effect on soil particles. The effect is due to reduction of the electrical double layer around the soil particles as a result of cation exchange effect. Another...

05 June 2015 7,355 1 View

Why do some micro-organisms convert starch carbonate broth into gel ?

There is a m.o. that noticed conversion of a broth into gel. The medium is starch + carbonate .

03 April 2015 5,109 2 View

Which server is best to do phylogenetic analysis of a protein sequence?

31 December 2014 3,675 2 View

Which laboratory offers protein purification service and sequence identification for a fee?

What are trustable commercial laboratories doing protein identification and purification.

11 December 2014 541 4 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

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

Any specific pipeline or parameter to analyse total transcriptomics study of brain tissue samples?

I have two groups of brain samples, control and treated for example. It was total RNA nova seq sequencing. I tried all the available pipeline like: star+rsem+deseq2, Hista+stringtie+cuffdiff,...

27 February 2021 356 6 View

RNA-seq DEGs downstream analysis and reporting in literature?

I used EdgeR to get the list of DEGs (differentially expressed genes) from my liver RNA-seq experiment. I have done the gene overrepresentation and GSEA based pathway analysis. I am currently...

23 February 2021 8,969 1 View

Could you please suggests a tutorial or paper or any other materials to learn multiple gene expression in TCGA and GTEx databases?

I would like to analyze multiple gene expressions in normal and cancer tissue by using the data in the TCGA and GTEx databases. Please suggest a tutorial or paper showing step by step analysis of...

23 February 2021 9,007 3 View

Which CpGs have a significant effect on gene expression?

It is known that methylated CpG around TSS decreases gene expression. However, It is difficult to know exactly which CpG has a greater impact on gene expression. Are there any databases known...

20 February 2021 5,634 3 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

Specify the Burgers vectors for dislocations, which cannot be uniquely identified.?

1. A bcc metal single crystal was sliced along (1 -1 0) plane for TEM study. Assuming that the TEM available is equipped with a goniometer stage which tilts up to 45o. The Burgers vector of...

20 February 2021 2,370 1 View

I can detect my protein but the encoding DNA sequence has stop codons within. Should I ignore the stop codons?

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

I am working on image transmission, i converted the image into binary vector, i want to extract the MSB of each pixel ?

i have a vector 1*512 size, i want to take the first value every 8 elements and put these elements at the end of the vector,how to do this on matlab ?

19 February 2021 2,352 5 View