List four common ironsulfur FeS clusters found in plant cell

List four common iron-sulfur (Fe-S) clusters found in plant cells. 4Fe-4S and 3Fe-4S clusters have broad absorption peak at what wavelength? 2Fe-2S clusters typically have distinct peaks at which four wavelengths? (Reference: Nath et al. [2016] Plant Physiology 172, 2459-2470) List any four plant proteins/enzymes that contain the classic 2Fe-2S cluster. (Reference: Balk and Pilon [2011] Trends in Plant Science 16: 218-226. See the supplemental material of this reference) List any four plant proteins/enzymes that contain the Rieske-type 2Fe-2S cluster. (Reference: Balk and Pilon [2011] Trends in Plant Science 16: 218-226. See the supplemental material of this reference)

Solution

1. four types of different iron sulphur clusters are as follows:-

classical 2Fe-2S, 3Fe-4S, Rieske type 2Fe-2S, 4Fe-4S , NEET type 2Fe-2Sand siroheme-(4Fe-4S) which involves covalent bonding of 4Fe-4S to siroheme.

2.4 Fe-4 S and 3Fe-4S have abortion peak at 450 nm. While for 2Fe-2S it is at 277nm,325nm,416nm,460nm.

3. plant enzymes that conatin classical 2Fe-2S are:

dihydroxy acid dehydratase

succinate dehydrohenase

sirohydrochlorin ferrochelatase

xanthine dehydrogenase

4 choline monooxygenase

chlorophyllide a oxygenase

reiske protein of cytochrome b6 complex

rieske subunit of ubiquinol cytochrome c reductase(complex3)