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. 2005 Mar 22;387(Pt 1):203–209. doi: 10.1042/BJ20041683

Table 1. Marker proteins and their activity in isolated rat liver mitochondria.

Assay conditions are described in the Experimental section. IMS, intermembrane space preparation; n.d., not detected.

Activity (%)
Enzyme Location Granule fraction Mitochondrial fraction
Acid phosphatase Lysosomes 100 0.5±0.1
Urate oxidase Peroxisomes 100 n.d.
Fumarase Mitochondrial matrix 100 95±4
Sulphite oxidase Mitochondrial IMS 100 80±5