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Updated: May 11, 2026

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue
Published on: March 23, 2015
So close and yet so far: mitochondria and peroxisomes are one but with specific talents
Sonja Hartwig1, Birgit Knebel, Simon Goeddeke
1Institute of Clinical Biochemistry and Pathobiochemistry, German Diabetes Center at the Heinrich-Heine-University Deusseldorf, Leibniz Center for Diabetes Research, 40225 Düsseldorf, Germany.
Abstract:
Cellular compartmentalization of central metabolic pathways as lipid metabolism to mitochondria and peroxisomes enables high efficient control processes. The basis to understand mitochondrial or peroxisomal function is exactly to determine proteins physically present. For proteomic investigations of mouse liver organelles, we developed 2-DE reference maps covering the range pH 4-9, available under ( www.diabesityprot.org ). MALDI-TOF-MS/MS analyses identified a total of 799 (mitochondria) and 681 (peroxisome) protein spots resembling 323 and 293 unique proteins, respectively. Direct comparison of mitochondrial and peroxisomal proteins indicated an approximate overlap of 2/3 of identified proteins. Gene Ontologies (GO) of the identified proteins in respect to physical presence confirmed functional specifications within the organelles. The 2-DE organelle reference maps will aid to point out functional differences and similarities. Our observations suggest that for functional analyses metabolic alterations focusing on one organelle are not sufficient and parallel comparison of both organelles is to be preferred.
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