Which online software is reliable for Protein Transmembrane helix prediction

04 May 2017 6,200 5 View

Double band for a single protein on western blot?

Im working on yeast secretary protein, my protein was his tagged so i use Anti-his monoclonal antibody for WB, i can see the signal but i got two band on each protein (totally i have two proteins...

11 December 2015 5,327 12 View

Can anyone suggest me a best transformation protocol for Bacillus subtilis using electroporation?

11 December 2015 3,054 1 View

What is the difference between Zymography and SDS-PAGE?

For determining the protein molecular weight, normally SDS-PAGE was used but some researchers also use zymography. im confused with both things. please clarify the difference between these two...

05 June 2014 8,429 6 View

Why should we use MgCl2 in particular instead of other chemicals for PCR?

Why should we use MgCl2 in particular instead of other chemicals for PCR?

02 March 2014 3,158 7 View

How to select a correct primer for an unknown organism for PCR?

We isolated bacteria from various samples. It is identified by biochemical tests as Lactobacillus spp. Now we are going to sequencing it for species level identification. I'm a little confused...

02 March 2014 6,089 6 View

Can anybody explain the target organism for pasteurization?

In milk numerous organisms grow well, that's why we pasteurize milk to remove unwanted microbes and their spores. But what is the exact target organism for pasteurization?

01 February 2014 1,002 10 View

How to find a specific gene responsible for particular charecter from the 16S rRNA sequence?

I need to identify the gene responsible for production of bacteriocin, and cloned it into another organism but I don't know how to identify the gene from 16S rRNA sequence.

01 February 2014 2,120 2 View

HPLC Peak has disappeared after one month. Any suggestions as to why?

We extracted secondary metabolite from wild Streptomyces spp. Initially, while running HPLC, peaks was obtained. However, after a few months, the peak disappeared (R.T 5.9-6.4 mins). Any suggestions?

31 December 2013 827 20 View

Is there any record of cholesterol reduction by Lactobacilus oris previously?

There are lots of studies which records the cholesterol reduction by Various Lactobacillus spp. but i want to know is there any researchers showing cholesterol reduction by Lactobacillus oris.

31 December 2013 2,836 1 View

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

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

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

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View