Fig 7.

The 13.4L protein does not associate with the peripheral arm. Mitochondrial proteins were resolved in a BN PAGE and either blotted onto a membrane (A and B) or resolved by 2D SDS-PAGE (C). The filters were probed with antisera against the 21.3c kDa subunit of complex I (A), the 13.4L protein (B), and the proteins indicated on the left (C). Relevant OXPHOS complexes and supercomplexes are indicated. a, the smallest intermediate to which the 13.4L associates; pa, the peripheral arm of complex I.