Download Thermo Scientific LipidSearch 5.1.12
LipidSearch software full crack license download from Thermo Fisher Scientific, Software for Processing Data from Direct Infusion and LC-MS High Resolution Mass Spectrometry Based Lipidomics Workflows. Thermo Scientific LipidSearch 5.0 software is designed to identify lipid species analyzed by infusion MS and MS/MS data from total lipid extracts. Mass spectrometric analysis of a 33-component standard mixture was performed on a Thermo Scientific Orbitrap Fusion Lumos Tribrid mass spectrometer operated at a resolution of 120,000 to 500,000 for the MS and MS/MS experiments.
The LipidSearch software database contains molecular lipid species (96 sub-classes) and their predicted fragment ions and provides the most complete coverage of different sample types including cells, human plasma, insect larvae, plants, seed oils, tissue and yeast.
First, “sum-composition” MS level lipid identification was performed by searching against an in-silico database of user-defined lipid species. Then, MS/MS data was processed to identify molecular lipid species by searching against the predicted mass spectral product ions based upon the results obtained in the MS level identification. Results from both positive and negative ion MS or MS/MS experiments were then merged together to give a comprehensive and correct level of lipid annotation by correlating individual lipid identifications.
Direct infusion and LC-MS high resolution accurate mass (HRAM) spectrometry-based workflows are typically processed with disparate and often multiple software tools. One of the main bottlenecks limiting the wide-spread application of these workflows for high-throughput untargeted lipidomics
analysis has been the lack of integrated software tools for automated data processing, database searching and visualization of complex lipidomics data sets. In addition, the lack of clear standards for reporting MS-based lipidomics makes it challenging to compare the lipid identifications obtained from these different approaches. We report here LipidSearch 5.0 software designed specifically for searching data from HRAM workflows for untargeted lipidomics analysis.
DATA PROCESSING
Data analysis with LipidSearch 5.0 software starts with the user configuring the database for the desired lipid species. Database entries for glycerolipids serve to illustrate how the database is organized. Lipids are named by category, class and subclass1. However, given the nature of MS-based identification, partial structures are specified using SMILES notation. Substituents are specified at the sum composition (MS) or molecular species (MS/MS) level. Exact lipid structures are not recommended unless further experiments are performed to provide the positional isomer, cis/trans configuration and double bond locations2. Adducts, modifications such as labeling, the range of carbons and double bonds for each lipid subclass, and product ions are specified for pos. and neg. ion adducts as neutral loss (NL), head group, backbone or FA specific fragmentations.
MATERIALS AND METHODS
- Sample Preparation
- Mass Spectrometry
- Data Analysis
- LipidSearch 5.0 software is a new software enabling data processing for UHRAM infusion workflows from Orbitrap-based mass spectrometers leading to exciting new possibilities in lipidomics research.
- No false negatives were observed when analyzing mixture of 32 known standards that varied in response by at least 4 orders of magnitude in ion abundance (3 orders in concentration).
- MS/MS confirmation is being repeated to fully identify all of the standards in the mixture and the m/z 369 from cholesterol can be eliminated by properly adjusting ion source conditions. Missing sphingolipid and cholesterol ester DB product ion entries are being added.
- Final validation is being conducted on the merge step and calculation of normalized and lipid quantitation. Beta testing is expected soon followed by release of the software.
Thermo Scientific LipidSearch
LipidSearchsoftware details:
- Operating system: Windows 10, 11 (x86-x64)
- Crack: Full Crack (1PC)
- License validity: Permanent and perpetual
- File Size: 1.6 GB
