KEGG ENZYME: 1.97.1.12

ENZYME: 1.97.1.12

Entry

EC 1.97.1.12 Enzyme

Name

photosystem I

Class

Oxidoreductases;
Other oxidoreductases;
Sole sub-subclass for oxidoreductases that do not belong in the other subclasses

Sysname

plastocyanin:ferredoxin oxidoreductase (light-dependent)

Reaction(IUBMB)

reduced plastocyanin + oxidized ferredoxin + hnu = oxidized plastocyanin + reduced ferredoxin [RN:R09542]

Reaction(KEGG)

R09542

Substrate

reduced plastocyanin [CPD:C03025];
oxidized ferredoxin [CPD:C00139];
hnu [CPD:C00205]

Product

oxidized plastocyanin [CPD:C03162];
reduced ferredoxin [CPD:C00138]

Comment

Contains chlorophyll, phylloquinones, carotenoids and [4Fe-4S] clusters.
Cytochrome c6 can act as an alternative electron donor, and flavodoxin as an alternative acceptor in some species.

History

EC 1.97.1.12 created 2011

Reference

1 [PMID:1778985]

Authors

Takabe T, Iwasaki Y, Hibino T, Ando T

Title

Subunit composition of Photosystem I complex that catalyzes light-dependent transfer of electrons from plastocyanin to ferredoxin.

Journal

J Biochem 110:622-7 (1991)

Reference

2 [PMID:10504244]

Authors

van Thor JJ, Geerlings TH, Matthijs HC, Hellingwerf KJ

Title

Kinetic evidence for the PsaE-dependent transient ternary complex photosystem I/Ferredoxin/Ferredoxin:NADP(+) reductase in a cyanobacterium.

Journal

Biochemistry 38:12735-46 (1999)
DOI:10.1021/bi9903502

Reference

3 [PMID:11337410]

Authors

Chitnis PR

Title

PHOTOSYSTEM I: Function and Physiology.

Journal

Annu Rev Plant Physiol Plant Mol Biol 52:593-626 (2001)
DOI:10.1146/annurev.arplant.52.1.593

Reference

4 [PMID:19923216]

Authors

Amunts A, Toporik H, Borovikova A, Nelson N

Title

Structure determination and improved model of plant photosystem I.

Journal

J Biol Chem 285:3478-86 (2010)
DOI:10.1074/jbc.M109.072645

Other DBs

ExplorEnz - The Enzyme Database:

1.97.1.12

IUBMB Enzyme Nomenclature:

1.97.1.12

ExPASy - ENZYME nomenclature database:

1.97.1.12

BRENDA, the Enzyme Database:

1.97.1.12

All links

Chemical substance (5)   
   KEGG COMPOUND (5)   
Chemical reaction (1)   
   KEGG REACTION (1)   
Protein sequence (15204)   
   UniProt (14484)   
   SWISS-PROT (457)   
   RefSeq(pep) (30)   
   PDBSTR (233)   
DNA sequence (289)   
   RefSeq(nuc) (21)   
   GenBank (134)   
   EMBL (134)   
3D Structure (12)   
   PDB (12)   
Protein domain (6)   
   InterPro (6)   
All databases (15517)   

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