Overall protocol for MicroPOTS LCMS top down proteomics of pancreas tissue sections
Mowei Zhou, Ljiljana.PasaTolic, James M Fulcher, Yen-Chen Liao
Abstract
This is the overall workflow for LCMS top down proteomics of pancreas functional units from tissue sections using the MicroPOTS platform. The expected outcomes are proteoform identification and quantitation values from selected tissue functional units.
Steps
Tissue collection
The tissue sections were prepared and shipped from Vanderbilt-TMC following the protocol below:
Cryostat Sectioning of Tissues for 3D Multimodal Molecular Imaging
Sample preparation
Functional units (islet and acinar) were dissected and collected into the microPOTS platform using the method below:
Laser Capture Microdissection of Tissue Functional Units for microPOTS Top-Down Proteomics
Data Acquisition
The samples were analyzed by LCMS top down proteomics as described below:
Top Down Proteomics Data Collection for Microdissected Pancreas Tissue Functional Units
Data Analysis
LCMS datasets were analyzed for proteoform identification and quantitation. The final results are reported.
Proteoform Identification and Quantitation with TopPIC and TDPortal for Human Tissues
