PMID: 24055473

Authors:

Ramelot TA, Yang Y, Sahu ID, Lee HW, Xiao R, Lorigan GA, Montelione GT, Kennedy MA

Title:

NMR structure and MD simulations of the AAA protease intermembrane space domain indicates peripheral membrane localization within the hexaoligomer.

Journal:

FEBS Lett. 2013 Nov 1;587(21):3522-8. doi: 10.1016/j.febslet.2013.09.009. Epub, 2013 Sep 18.

Abstract:

We have determined the solution NMR structure of the intermembrane space domain (IMSD) of the human mitochondrial ATPase associated with various activities (AAA) protease known as AFG3-like protein 2 (AFG3L2). Our structural analysis and molecular dynamics results indicate that the IMSD is peripherally bound to the membrane surface. This is a modification to the location of the six IMSDs in a model of the full length yeast hexaoligomeric homolog of AFG3L2 determined at low resolution by electron cryomicroscopy [1]. The predicted protein-protein interaction surface, located on the side furthest from the membrane, may mediate binding to substrates as well as prohibitins.