DB code: M00222

CATH domain 2.60.40.830 : Immunoglobulin-like
2.40.50.100 : OB fold (Dihydrolipoamide Acetyltransferase, E2P)
1.20.810.10 : Cytochrome Bc1 Complex; Chain C
1.-.-.- :
2.102.10.10 : Rieske Iron-sulfur Protein Catalytic domain
1.20.5.510 : Single alpha-helices involved in coiled-coils or other helix-helix interfaces
1.10.287.980 : Helix Hairpins
1.-.-.- :
1.-.-.- :
1.-.-.- :
1.-.-.- :
E.C. 1.10.9.1
CSA
M-CSA
MACiE

CATH domain Related DB codes (homologues)
2.102.10.10 : Rieske Iron-sulfur Protein T00024
2.40.50.100 : OB fold (Dihydrolipoamide Acetyltransferase, E2P) M00163 M00145 M00188 M00189 T00223 M00190 M00191 M00208

Uniprot Enzyme Name
UniprotKB Protein name Synonyms Pfam RefSeq
P08980 Cytochrome b6-f complex iron-sulfur subunit, chloroplastic
Rieske iron-sulfur protein
ISP
RISP
EC 1.10.9.1
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein
PF08802 (CytB6-F_Fe-S)
PF00355 (Rieske)
[Graphical View]
P23230 Cytochrome b6-f complex subunit 4
17 kDa polypeptide
PF00032 (Cytochrom_B_C)
[Graphical View]
NP_958359.1 (Protein)
NC_005353.1 (DNA/RNA sequence)
P00166 Cytochrome b6-f complex subunit 4
17 kDa polypeptide
PF00032 (Cytochrom_B_C)
[Graphical View]
NP_054965.1 (Protein)
NC_002202.1 (DNA/RNA sequence)
Q08362 Cytochrome b6-f complex subunit 5
Cytochrome b6-f complex subunit PetG
Cytochrome b6-f complex subunit V
PF02529 (PetG)
[Graphical View]
NP_958401.1 (Protein)
NC_005353.1 (DNA/RNA sequence)
P69461 Cytochrome b6-f complex subunit 5
Cytochrome b6-f complex subunit PetG
Cytochrome b6-f complex subunit V
PF02529 (PetG)
[Graphical View]
NP_054954.1 (Protein)
NC_002202.1 (DNA/RNA sequence)
P50369 Cytochrome b6-f complex subunit 6
Cytochrome b6-f complex subunit PetL
Cytochrome b6-f complex subunit VI
PF05115 (PetL)
[Graphical View]
NP_958424.2 (Protein)
NC_005353.1 (DNA/RNA sequence)
Q9M3L0 Cytochrome b6-f complex subunit 6
Cytochrome b6-f complex subunit PetL
Cytochrome b6-f complex subunit VI
PF05115 (PetL)
[Graphical View]
NP_054953.1 (Protein)
NC_002202.1 (DNA/RNA sequence)
Q42496 Cytochrome b6-f complex subunit 7, chloroplastic
Cytochrome b6-f complex 4 kDa subunit
Cytochrome b6-f complex subunit PetM
Cytochrome b6-f complex subunit VII
PF08041 (PetM)
[Graphical View]
XP_001694096.1 (Protein)
XM_001694044.1 (DNA/RNA sequence)
P80883 Cytochrome b6-f complex subunit 7
Cytochrome b6-f complex subunit PetM
Cytochrome b6-f complex subunit VII
PF08041 (PetM)
[Graphical View]
P0C1D4 Cytochrome b6-f complex subunit 8, chloroplastic
Cytochrome b6-f complex subunit PetN
Cytochrome b6-f complex subunit VIII
PF03742 (PetN)
[Graphical View]
XP_001698251.1 (Protein)
XM_001698199.1 (DNA/RNA sequence)
P61045 Cytochrome b6-f complex subunit 8
Cytochrome b6-f complex subunit PetN
Cytochrome b6-f complex subunit VIII
PF03742 (PetN)
[Graphical View]
NP_054925.1 (Protein)
NC_002202.1 (DNA/RNA sequence)
P23577 Apocytochrome f
None PF01333 (Apocytochr_F_C)
[Graphical View]
NP_958358.1 (Protein)
NC_005353.1 (DNA/RNA sequence)
P16013 Apocytochrome f
None PF01333 (Apocytochr_F_C)
[Graphical View]
NP_054949.1 (Protein)
NC_002202.1 (DNA/RNA sequence)
Q00471 Cytochrome b6
None PF13631 (Cytochrom_B_N_2)
[Graphical View]
NP_958365.1 (Protein)
NC_005353.1 (DNA/RNA sequence)
P00165 Cytochrome b6
None PF00033 (Cytochrom_B_N)
[Graphical View]
NP_054964.1 (Protein)
NC_002202.1 (DNA/RNA sequence)
P49728 Cytochrome b6-f complex iron-sulfur subunit, chloroplastic
EC 1.10.9.1
Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein
Rieske iron-sulfur protein
ISP
RISP
PF08802 (CytB6-F_Fe-S)
PF00355 (Rieske)
[Graphical View]
XP_001698786.1 (Protein)
XM_001698734.1 (DNA/RNA sequence)

KEGG enzyme name
plastoquinol---plastocyanin reductase
plastoquinol/plastocyanin oxidoreductase
cytochrome b6/f complex
cytochrome b6/ complex

UniprotKB: Accession Number Entry name Activity Subunit Subcellular location Cofactor
P23577 CYF_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Single-pass membrane protein. Binds 1 heme group covalently.
P16013 CYF_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity). Binds 1 heme group covalently (By similarity).
Q00471 CYB6_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Multi-pass membrane protein. Binds 2 heme groups. One heme group is bound covalently by a single cysteine link, the other one non-covalently.
P00165 CYB6_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Multi-pass membrane protein (By similarity). Binds 2 heme groups. One heme group is bound covalently by a single cysteine link, the other one non-covalently.
P49728 UCRIA_CHLRE Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin. The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Single-pass membrane protein. Note=The transmembrane helix obliquely spans the membrane in one monomer, and its extrinsic C- terminal domain is part of the other monomer. Binds 1 2Fe-2S cluster per subunit.
P08980 UCRIA_SPIOL Plastoquinol-1 + 2 oxidized plastocyanin = plastoquinone + 2 reduced plastocyanin. The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity). Note=The transmembrane helix obliquely spans the membrane in one monomer, and its extrinsic C-terminal domain is part of the other monomer (By similarity). Binds 1 2Fe-2S cluster per subunit.
P23230 PETD_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Multi-pass membrane protein.
P00166 PETD_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Multi-pass membrane protein (By similarity).
Q08362 PETG_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Single-pass membrane protein.
P69461 PETG_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity).
P50369 PETL_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity).
Q9M3L0 PETL_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity).
Q42496 PETM_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Single-pass membrane protein.
P80883 PETM_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity).
P0C1D4 PETN_CHLRE The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer. Plastid, chloroplast thylakoid membrane, Single-pass membrane protein.
P61045 PETN_SPIOL The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, petD), cytochrome f and the Rieske protein, while the 4 small subunits are petG, petL, petM and petN. The complex functions as a dimer (By similarity). Plastid, chloroplast thylakoid membrane, Single-pass membrane protein (By similarity).

KEGG Pathways
Map code Pathways E.C.
MAP00195 Photosynthesis

Compound table
Cofactors Substrates Products Intermediates
KEGG-id C00032 L00023 C05306 C16693 C03162 C02061 C03025
E.C.
Compound Heme [2Fe-2S] Chlorophyll a Plastoquinol Oxidized plastocyanin Plastoquinone Reduced plastocyanin
Type aromatic ring (with nitrogen atoms),carboxyl group,heavy metal heavy metal,sulfide group aromatic ring (with nitrogen atoms),carbohydrate,divalent metal (Ca2+, Mg2+),lipid aromatic ring (only carbon atom),lipid heavy metal,peptide/protein aromatic ring (only carbon atom),lipid heavy metal,peptide/protein
ChEBI 17627
26355
33739
18230
16323
80663
PubChem 12085802
16667503
44602414
24892729
10219885
1q90A01 Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Bound:HEM Unbound Unbound Unbound Unbound Unbound Unbound
1q90A02 Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Unbound Unbound Unbound Unbound Unbound
1q90B Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Bound:3xHEM Unbound Unbound Unbound Unbound Unbound Unbound
1q90R Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Unbound Unbound Unbound Unbound Unbound
1q90C Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Bound:FES Unbound Unbound Unbound Analogue:TDS Unbound
1rfsA Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Bound:FES Unbound Unbound Unbound Unbound Unbound
1q90D Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Bound:CL1 Unbound Unbound Unbound Unbound
1q90G Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Unbound Unbound Unbound Unbound Unbound
1q90L Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Unbound Unbound Unbound Unbound Unbound
1q90M Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Unbound Unbound Unbound Unbound Unbound
1q90N Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain Unbound Unbound Unbound Unbound Unbound Unbound Unbound

Reference for Active-site residues
resource references E.C.
literature [14], [15]

Active-site residues
PDB Catalytic residues Cofactor-binding residues Modified residues Main-chain involved in catalysis Comment
1q90A01 Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain TYR 1;HIS 25(Fe binding);CYS 21;CYS 24(Porphyrin binding)
1q90A02 Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain
1q90B Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain CYS 35(Porphyrin-3 binding);HIS 86;HIS 187(Fe-2 binding);HIS 100;HIS 202(Fe-1 binding)
1q90R Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain
1q90C Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain HIS 155 CYS 134;HIS 136;CYS 152;HIS 155(2Fe-2S cluster binding)
1rfsA Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain HIS 128 CYS 107;HIS 109;CYS 125;HIS 128(2Fe-2S cluster binding)
1q90D Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain
1q90G Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain
1q90L Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain
1q90M Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain
1q90N Pdbj logo s Rasmollogo id Rasmollogo chain Mmcif id Mmcif chain

References for Catalytic Mechanism
References Sections No. of steps in catalysis
[3]
p.1617, p.1620, p.1622
[11]
[12]
[13]
p.20931-20932
[14]
p.415-417
[15]
Fig.2, p.1014
[17]
p.5925-5926
[19]
p.16334-16335

References
[1]
Resource
Comments
Medline ID
PubMed ID 1847076
Journal Biochemistry
Year 1991
Volume 30
Pages 1892-901
Authors Britt RD, Sauer K, Klein MP, Knaff DB, Kriauciunas A, Yu CA, Yu L, Malkin R
Title Electron spin echo envelope modulation spectroscopy supports the suggested coordination of two histidine ligands to the Rieske Fe-S centers of the cytochrome b6f complex of spinach and the cytochrome bc1 complexes of Rhodospirillum rubrum, Rhodobacter sphaeroides R-26, and bovine heart mitochondria.
Related PDB
Related UniProtKB
[2]
Resource
Comments
Medline ID
PubMed ID 8394319
Journal J Bioenerg Biomembr
Year 1993
Volume 25
Pages 233-44
Authors Beattie DS
Title A proposed pathway of proton translocation through the bc complexes of mitochondria and chloroplasts.
Related PDB
Related UniProtKB
[3]
Resource
Comments X-RAY CRYSTALLOGRAPHY (1.83 ANGSTROMS) OF 104-230.
Medline ID
PubMed ID 9438861
Journal Structure
Year 1997
Volume 5
Pages 1613-25
Authors Carrell CJ, Zhang H, Cramer WA, Smith JL
Title Biological identity and diversity in photosynthesis and respiration: structure of the lumen-side domain of the chloroplast Rieske protein.
Related PDB 1rfs
Related UniProtKB P08980
[4]
Resource
Comments
Medline ID
PubMed ID 10423236
Journal Biochemistry
Year 1999
Volume 38
Pages 9590-9
Authors Carrell CJ, Schlarb BG, Bendall DS, Howe CJ, Cramer WA, Smith JL
Title Structure of the soluble domain of cytochrome f from the cyanobacterium Phormidium laminosum.
Related PDB
Related UniProtKB
[5]
Resource
Comments
Medline ID
PubMed ID 10359083
Journal FEBS Lett
Year 1999
Volume 450
Pages 245-50
Authors Schoepp B, Brugna M, Riedel A, Nitschke W, Kramer DM
Title The Qo-site inhibitor DBMIB favours the proximal position of the chloroplast Rieske protein and induces a pK-shift of the redox-linked proton.
Related PDB
Related UniProtKB
[6]
Resource
Comments
Medline ID
PubMed ID 10591526
Journal J Bioenerg Biomembr
Year 1999
Volume 31
Pages 201-13
Authors Soriano GM, Ponamarev MV, Carrell CJ, Xia D, Smith JL, Cramer WA
Title Comparison of the cytochrome bc1 complex with the anticipated structure of the cytochrome b6f complex: Le plus ca change le plus c'est la meme chose.
Related PDB
Related UniProtKB
[7]
Resource
Comments
Medline ID
PubMed ID 11004464
Journal Biochim Biophys Acta
Year 2000
Volume 1459
Pages 467-74
Authors Breyton C
Title The cytochrome b(6)f complex: structural studies and comparison with the bc(1) complex.
Related PDB
Related UniProtKB
[8]
Resource
Comments
Medline ID
PubMed ID 11460929
Journal J Bioenerg Biomembr
Year 2001
Volume 33
Pages 9-26
Authors Schmidt CL, Shaw L
Title A comprehensive phylogenetic analysis of Rieske and Rieske-type iron-sulfur proteins.
Related PDB
Related UniProtKB
[9]
Resource
Comments
Medline ID
PubMed ID 11526115
Journal J Biol Chem
Year 2001
Volume 276
Pages 42761-6
Authors Molik S, Karnauchov I, Weidlich C, Herrmann RG, Klosgen RB
Title The Rieske Fe/S protein of the cytochrome b6/f complex in chloroplasts: missing link in the evolution of protein transport pathways in chloroplasts?
Related PDB
Related UniProtKB
[10]
Resource
Comments
Medline ID
PubMed ID 11788579
Journal J Biol Chem
Year 2002
Volume 277
Pages 10949-54
Authors Schneider D, Skrzypczak S, Anemuller S, Schmidt CL, Seidler A, Rogner M
Title Heterogeneous Rieske proteins in the cytochrome b6f complex of Synechocystis PCC6803?
Related PDB
Related UniProtKB
[11]
Resource
Comments
Medline ID
PubMed ID 12207018
Journal J Biol Chem
Year 2002
Volume 277
Pages 41865-71
Authors Soriano GM, Guo LW, De Vitry C, Kallas T, Cramer WA
Title Electron transfer from the Rieske iron-sulfur protein (ISP) to cytochrome f in vitro. Is a guided trajectory of the ISP necessary for competent docking?
Related PDB
Related UniProtKB
[12]
Resource
Comments
Medline ID
PubMed ID 12944318
Journal Biophys J
Year 2003
Volume 85
Pages 2055-68
Authors Gross EL, Pearson DC Jr
Title Brownian dynamics simulations of the interaction of Chlamydomonas cytochrome f with plastocyanin and cytochrome c6.
Related PDB
Related UniProtKB
[13]
Resource
Comments
Medline ID
PubMed ID 12672829
Journal J Biol Chem
Year 2003
Volume 278
Pages 20925-33
Authors Yan J, Cramer WA
Title Functional insensitivity of the cytochrome b6f complex to structure changes in the hinge region of the Rieske iron-sulfur protein.
Related PDB
Related UniProtKB
[14]
Resource
Comments X-RAY CRYSTALLOGRAPHY (3.1 ANGSTROMS) OF 31-206.
Medline ID
PubMed ID 14647374
Journal Nature
Year 2003
Volume 426
Pages 413-8
Authors Stroebel D, Choquet Y, Popot JL, Picot D
Title An atypical haem in the cytochrome b(6)f complex.
Related PDB 1q90
Related UniProtKB P49728
[15]
Resource
Comments
Medline ID
PubMed ID 14526088
Journal Science
Year 2003
Volume 302
Pages 1009-14
Authors Kurisu G, Zhang H, Smith JL, Cramer WA
Title Structure of the cytochrome b6f complex of oxygenic photosynthesis: tuning the cavity.
Related PDB
Related UniProtKB
[16]
Resource
Comments
Medline ID
PubMed ID 14585099
Journal Biochem J
Year 2004
Volume 378
Pages 45-51
Authors Crowley PB, Hunter DM, Sato K, McFarlane W, Dennison C
Title The parsley plastocyanin-turnip cytochrome f complex: a structurally distorted but kinetically functional acidic patch.
Related PDB
Related UniProtKB
[17]
Resource
Comments
Medline ID
PubMed ID 15147175
Journal Biochemistry
Year 2004
Volume 43
Pages 5921-9
Authors Cramer WA, Zhang H, Yan J, Kurisu G, Smith JL
Title Evolution of photosynthesis: time-independent structure of the cytochrome b6f complex.
Related PDB
Related UniProtKB
[18]
Resource
Comments
Medline ID
PubMed ID 15196013
Journal Biochemistry
Year 2004
Volume 43
Pages 7707-16
Authors Roberts AG, Bowman MK, Kramer DM
Title The inhibitor DBMIB provides insight into the functional architecture of the Qo site in the cytochrome b6f complex.
Related PDB
Related UniProtKB
[19]
Resource
Comments
Medline ID
PubMed ID 15610027
Journal Biochemistry
Year 2004
Volume 43
Pages 16329-36
Authors Zhang H, Primak A, Cape J, Bowman MK, Kramer DM, Cramer WA
Title Characterization of the high-spin heme x in the cytochrome b6f complex of oxygenic photosynthesis.
Related PDB
Related UniProtKB
[20]
Resource
Comments
Medline ID
PubMed ID 15313237
Journal Curr Opin Struct Biol
Year 2004
Volume 14
Pages 432-9
Authors Smith JL, Zhang H, Yan J, Kurisu G, Cramer WA
Title Cytochrome bc complexes: a common core of structure and function surrounded by diversity in the outlying provinces.
Related PDB
Related UniProtKB
[21]
Resource
Comments
Medline ID
PubMed ID 15316016
Journal J Biol Chem
Year 2004
Volume 279
Pages 44621-7
Authors de Vitry C, Ouyang Y, Finazzi G, Wollman FA, Kallas T
Title The chloroplast Rieske iron-sulfur protein. At the crossroad of electron transport and signal transduction.
Related PDB
Related UniProtKB
[22]
Resource
Comments
Medline ID
PubMed ID 15522300
Journal J Mol Biol
Year 2004
Volume 344
Pages 481-93
Authors Yan J, Cramer WA
Title Molecular control of a bimodal distribution of quinone-analogue inhibitor binding sites in the cytochrome b(6)f complex.
Related PDB
Related UniProtKB
[23]
Resource
Comments
Medline ID
PubMed ID 15003236
Journal Trends Plant Sci
Year 2004
Volume 9
Pages 130-7
Authors Allen JF
Title Cytochrome b6f: structure for signalling and vectorial metabolism.
Related PDB
Related UniProtKB

Comments
This enzyme, Rieske iron-sulfur protein, is a component of cytochrome b6/f complex. This enzyme transfers electrons from plastoquinol to plastocyanin, a copper-containing protein. The electrons transferred to the plastocyanin are donated to a heam cofactor of cytochrome f, which is also a component of cycochrome b6/f complex.
The cytochrome b6/f complex is composed of four large subunits and four small subunits:
The large subunits are:
cytochrome b6: Swiss-prot;Q00471, PDB;1q90 chain B,
subunit IV (or petD): Swiss-prot;P23230, PDB;1q90 chain D,
cytochrome f: Swiss-prot;P23577, PDB;1q90 chain A,
Rieske iron-sulfur protein (ISP): Swiss-prot;P49728, P08980 (PDB;1q90 chains R/C & 1rfs).
The small subunits are:
petG: Swiss-prot;Q08362, PDB;1q90 chain G,
petL: Swiss-prot;P50369, PDB;1q90 chain L,
petM: Swiss-prot;Q42496, PDB;1q90 chain M,
petN: Swiss-prot;P61045, PDB;1q90 chain N

Created Updated
2004-01-29 2012-10-02