We recently had the opportunity to chat with Alex Ward, PhD, Principal Consultant, Arta Bioanalytics to discover more about his work in developing transcriptomics and metabolomics data interpretation for the cultivated meat sector. As a specialist in multi-omics approaches, Alex is driving R&D, production and regulatory processes for the industry. Below are Alex’s responses to a few questions we asked, sharing his knowledge with the SCIEX community to drive the future of cultivated meat.
Proteomics
The proteomics discussion page is packed full of in-depth answers to real client questions. Answered by experts with insight from your peers. This is the place to learn about mass spectrometry and proteomics in a way you've never seen before. Perhaps you want to learn the basics or want to upload a data file for OneOmics analysis but have questions about how to do so. This is the forum to see how other labs just like yours are taking proteomics research to the next level.
Loss the contact closure signal
our 7600 couple with nanoLC Ultimate 3000 via contact closure. it has run without any loss connection during the batch. Just yesterday, the last injection keep equilibrating system until the LC finished the gradient run. We closed the software and power off LC and MS then started again but it did not help. The Dionex engineer also checked their LC and triggerring cable found both are ok.
Optimized rolling collision energy curves for IDA and SWATH DIA for peptides
During data dependent acquisition (DDA or IDA) or SWATH acquisition, the collision energy can be automatically adjusted according to the mass/charge and charge of the peptide. This dependency has been well characterized on our QTOF systems. By selecting rolling...
Protein Pilot Cysteine Modification
Hello,
New features in OneOmics suite
I just wanted to thank the readers here, both the OneOmics suite users who’ve shared their time and watched OneOmics grow, and for all the talented developers and scientists who’ve made OneOmics suite what it is today.
ProteinPilot phosphopeptide library and DIA-NN
I have prepared a spectral library for a phosphopeptide enriched sample and I am generating my SWATH samples from similarly enriched samples. The problem is that when I use DIA-NN for the retention time alignment and quant, it doesn’t recognise the terminology of the spectral library annotated by ProteinPilot. DIA-NN recognises Unimod:21 for phosphorylation, but PP uses phospho(Tyr) etc. Other than changing the data dictionary to get around the mismatch, anyone have any suggestions for how I might resolve this? Thank you, Roz
Current proteomics software compatibility for ZenoTOF 7600 system
Below is a summary of various other software packages that are useful for processing proteomics data from the ZenoTOF 7600 system. Note this list is not comprehensive and only covers the tools we have lightly tested to date. Acquisition Type Software Files needed...
Sequential processing of multiple data-files in ProteinPilot
I would like to use ProteinPilot 5.0.2 to process data-sets containing 16 wiff files acquired from fractionated peptides on a 6600 TripleTOF. A Precision T7910 workstation struggles to process four files in parallel and I would like to be able to queue sequential processing of individual files overnight. I currently use the ‘LC ‘ tab to load and process individual data-files but this leads to parallel processing. Is it possible to generate 16 .group files sequentially?
Easy switching of sources and LC flow regimes on the ZenoTOF 7600 system
This series of videos outlines how a user can easily switch sources and operate the system in different LC flow regimes.
Creating a library from a FASTA file for library-free data analysis
While generating proteomic spectral libraries today is relatively easy, sometimes a library is needed and there is not time or need to generate a deep library using the traditional data-dependent acquisition approach. Here, a strategy will be outlined to generate a...