Ontology highlight
ABSTRACT:
SUBMITTER: Martin E
PROVIDER: S-EPMC3076213 | biostudies-literature | 2011 Apr
REPOSITORIES: biostudies-literature
Journal of the American Chemical Society 20110318 14
In the photosynthetic reaction center from Rhodobacter sphaeroides, the primary (Q(A)) and secondary (Q(B)) electron acceptors are both ubiquinone-10, but with very different properties and functions. To investigate the protein environment that imparts these functional differences, we have applied X-band HYSCORE, a 2D pulsed EPR technique, to characterize the exchangeable protons around the semiquinone (SQ) in the Q(A) and Q(B) sites, using samples of (15)N-labeled reaction centers, with the nat ...[more]