330JP16 - BISC 330L Dr. John Petruska 330JP16.ppt Lect. 15...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
BISC 330L Dr. John Petruska 330JP16.ppt Lect. 15 Review: Electron Carriers & Proton Pumps and Lecture 16 References: (3rd Ed 2005), Chap. 21 (6th Ed 2007), Chap. 19
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Fig. 21.20 Mechanism of photophosphorylation. Proton pumping by PSII/Cytbf/PSI, driven by light absorbed in PSII and PSI, concentrates H + in lumen (pH 4-5) to enable ATP synthesis (from ADP + Pi + H + ) by CF 1 CF 0 ATP synthase. PSII Cytbf PSI
Background image of page 2
Photosystem II (PS II) components: D 1 , D 2 = Reaction center 32 Kd protein subunits CP43,CP47= Chlorophyll (Chl) antenna subunits P680 = Special Chl a pair at D 1 / D 2 interface Phe or Pheo = Pheophytin (Chl a without Mg ++ ) On stroma side: Q A = Quinone (Q) site in D 2 Q B = Quinone (Q) site in D 1 PQ = plastoquinone in lipid bilayer On lumen side:
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Fig. 21.18 Molecular Architecture of PSII, with arrows showing electron path when light is absorbed by P680 (P D1 P D2 ).
Background image of page 4
CP47 CP43 Stryer Fig. 19.13 Structure of Photosystem II (P680)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/03/2010 for the course BISC 330L taught by Professor Petruska,tower during the Spring '07 term at USC.

Page1 / 13

330JP16 - BISC 330L Dr. John Petruska 330JP16.ppt Lect. 15...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online