The. llltl'.. l inlportallt Itlnclioll o| nl; lllg, lllC~, C ill biology is to catalyze Iht conxcrsion ot water
to molecular oxygen. Thb, process t;. ikc~, place in l'tlolos~ Mem II near the lumenal surface …

This guide is intended to aid in the detection and identification of paramagnetic species in
Photosystem II membranes, by electron paramagnetic resonance spectroscopy. The spectral …

The light-harvesting complex (LHC) of barley photosystem II (PS II) was fractionated by
Deriphat-polyacrylamide gel electrophoresis into five different pigmented components: one …

Exposure of highly resolved Photosystem II preparations to 2 M NaCl produces an 80%
inhibition of oxygen-evolution activity concomitant with extensive loss of two water-soluble …

The Photosystem II reaction center is vulnerable to photoinhibition. The D1 and D2 proteins,
lying at the core of the photosystem, are susceptible to oxidative modification by reactive …

In Photosystem II preparations at low temperature we were able to generate and trap an
intermediate state between the S 1 and S 2 states of the Kok scheme for photosynthetic …

Detergent‐treatment of higher plant thylakoids with Triton X‐100 at pH 6.3 has been used to
purify a PS2 fraction with very high rates of oxygen evolution (1000 μmol. mg chl− 1. h− 1). A …

Four procedures utilizing different detergent and salt conditions were used to isolate oxygen-
evolving Photosystem II (PS II) preparations from spinach thylakoid membranes. These PS II …

Exposure of detergent-isolated preparations of the Photosystem II complex to 2 M NaCl
releases water-soluble 17 and 23 kDa polypeptides; the inhibited rate of oxygen evolution …

Removal of 23 and 17 kDa water-soluble polypeptides from PS II membranes causes a
marked decrease in oxygen-evolution activity, exposes the oxidizing side of PS II to …