Download MendeleyHow the N-terminal Domain of the OSCP Subunit of Bovine F(1)F(o)-ATP Synthase Interacts with the N-terminal Region of an Alpha Subunit
Carbajo, R.J., Kellas, F.A., Yang, J.-C., Runswick, M.J., Montgomery, M.G., Walker, J.E., Neuhaus, D.(2007) J Mol Biol 368: 310-318
- PubMed: 17355883
- DOI: https://doi.org/10.1016/j.jmb.2007.02.059
- Primary Citation of Related Structures:
2JMX - PubMed Abstract:
The peripheral stalk of ATP synthase acts as a stator holding the alpha(3)beta(3) catalytic subcomplex and the membrane subunit a against the torque of the rotating central stalk and attached c ring. In bovine mitochondria, the N-terminal domain of the oligomycin sensitivity conferral protein (OSCP-NT; residues 1-120) anchors one end of the peripheral stalk to the N-terminal tails of one or more alpha subunits of the F(1) subcomplex. Here, we present an NMR characterisation of the interaction between OSCP-NT and a peptide corresponding to residues 1-25 of the alpha-subunit of bovine F(1)-ATPase. The interaction site contains adjoining hydrophobic surfaces of helices 1 and 5 of OSCP-NT binding to hydrophobic side-chains of the alpha-peptide.
Organizational Affiliation:
MRC Dunn Human Nutrition Unit, Hills Road, Cambridge CB2 2XY, UK.
