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Protein

Cytochrome f

Gene

petA

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.

Cofactori

heme2 PublicationsNote: Binds 1 heme group covalently.2 Publications

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi32Iron (heme axial ligand); via amino nitrogen2 Publications1
Binding sitei52Heme (covalent)2 Publications1
Binding sitei55Heme (covalent)2 Publications1
Metal bindingi56Iron (heme axial ligand)2 Publications1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Keywords - Ligandi

Heme, Iron, Metal-binding

Enzyme and pathway databases

BioCyciCHLAMY:CHRECP001-MONOMER.
MetaCyc:CHRECP001-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome f
Gene namesi
Name:petA
Encoded oniPlastid; Chloroplast
OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)
Taxonomic identifieri3055 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas
Proteomesi
  • UP000006906 Componenti: Chloroplast

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei283 – 302HelicalSequence analysisAdd BLAST20

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 311 PublicationAdd BLAST31
ChainiPRO_000002380932 – 317Cytochrome fAdd BLAST286

Proteomic databases

PaxDbiP23577.

Interactioni

Subunit structurei

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.

Protein-protein interaction databases

DIPiDIP-48404N.
STRINGi3055.DAA00904.

Structurei

Secondary structure

1317
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi33 – 39Combined sources7
Beta strandi41 – 44Combined sources4
Helixi51 – 54Combined sources4
Beta strandi63 – 65Combined sources3
Beta strandi68 – 70Combined sources3
Beta strandi75 – 81Combined sources7
Beta strandi86 – 88Combined sources3
Beta strandi95 – 98Combined sources4
Beta strandi101 – 107Combined sources7
Helixi117 – 119Combined sources3
Helixi122 – 128Combined sources7
Beta strandi134 – 137Combined sources4
Beta strandi143 – 150Combined sources8
Helixi151 – 154Combined sources4
Beta strandi155 – 162Combined sources8
Turni166 – 168Combined sources3
Beta strandi174 – 186Combined sources13
Beta strandi198 – 200Combined sources3
Beta strandi208 – 220Combined sources13
Beta strandi223 – 228Combined sources6
Beta strandi230 – 232Combined sources3
Beta strandi234 – 239Combined sources6
Beta strandi241 – 243Combined sources3
Beta strandi258 – 260Combined sources3
Beta strandi267 – 277Combined sources11
Helixi280 – 314Combined sources35

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CFMX-ray2.00A/B/C32-282[»]
1E2VX-ray1.85A/B/C32-282[»]
1E2WX-ray1.60A/B32-282[»]
1E2ZX-ray2.50A/B/C32-282[»]
1EWHX-ray2.35A/B/C32-282[»]
1Q90X-ray3.10A32-317[»]
ProteinModelPortaliP23577.
SMRiP23577.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP23577.

Family & Domainsi

Sequence similaritiesi

Belongs to the cytochrome f family.Curated

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG410IEST. Eukaryota.
ENOG410XPEN. LUCA.
InParanoidiP23577.
KOiK02634.

Family and domain databases

Gene3Di1.20.5.700. 1 hit.
2.60.40.830. 2 hits.
HAMAPiMF_00610. Cytb6_f_cytF. 1 hit.
InterProiIPR024058. Cyt-f_TM.
IPR002325. Cyt_f.
IPR024094. Cyt_f_lg_dom.
IPR011054. Rudment_hybrid_motif.
[Graphical view]
PfamiPF01333. Apocytochr_F_C. 1 hit.
PF16639. Apocytochr_F_N. 1 hit.
[Graphical view]
PRINTSiPR00610. CYTOCHROMEF.
SUPFAMiSSF103431. SSF103431. 1 hit.
SSF49441. SSF49441. 2 hits.
SSF51246. SSF51246. 1 hit.
PROSITEiPS51010. CYTF. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P23577-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSNQVFTTLR AATLAVILGM AGGLAVSPAQ AYPVFAQQNY ANPREANGRI
60 70 80 90 100
VCANCHLAQK AVEIEVPQAV LPDTVFEAVI ELPYDKQVKQ VLANGKKGDL
110 120 130 140 150
NVGMVLILPE GFELAPPDRV PAEIKEKVGN LYYQPYSPEQ KNILVVGPVP
160 170 180 190 200
GKKYSEMVVP ILSPDPAKNK NVSYLKYPIY FGGNRGRGQV YPDGKKSNNT
210 220 230 240 250
IYNASAAGKI VAITALSEKK GGFEVSIEKA NGEVVVDKIP AGPDLIVKEG
260 270 280 290 300
QTVQADQPLT NNPNVGGFGQ AETEIVLQNP ARIQGLLVFF SFVLLTQVLL
310
VLKKKQFEKV QLAEMNF
Length:317
Mass (Da):34,292
Last modified:November 1, 1991 - v1
Checksum:i1DC74E50552B7A53
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti53A → N AA sequence (PubMed:7493968).Curated1
Sequence conflicti64I → S in CAA40911 (PubMed:1868213).Curated1
Sequence conflicti89 – 91KQV → NS in CAA40911 (PubMed:1868213).Curated3
Sequence conflicti132Y → F in CAA40911 (PubMed:1868213).Curated1
Sequence conflicti165D → Y (PubMed:2060646).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X72917 Genomic DNA. Translation: CAA51422.1.
D01036 Genomic DNA. Translation: BAA00844.1.
X57744 Genomic DNA. Translation: CAA40911.1.
FJ423446 Genomic DNA. Translation: ACJ50091.1.
BK000554 Genomic DNA. Translation: DAA00904.1.
PIRiS16916.
RefSeqiNP_958358.1. NC_005353.1.

Genome annotation databases

EnsemblPlantsiDAA00904; DAA00904; DAA00904.
GeneIDi2716989.
GrameneiDAA00904; DAA00904; DAA00904.
KEGGicre:ChreCp001.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X72917 Genomic DNA. Translation: CAA51422.1.
D01036 Genomic DNA. Translation: BAA00844.1.
X57744 Genomic DNA. Translation: CAA40911.1.
FJ423446 Genomic DNA. Translation: ACJ50091.1.
BK000554 Genomic DNA. Translation: DAA00904.1.
PIRiS16916.
RefSeqiNP_958358.1. NC_005353.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1CFMX-ray2.00A/B/C32-282[»]
1E2VX-ray1.85A/B/C32-282[»]
1E2WX-ray1.60A/B32-282[»]
1E2ZX-ray2.50A/B/C32-282[»]
1EWHX-ray2.35A/B/C32-282[»]
1Q90X-ray3.10A32-317[»]
ProteinModelPortaliP23577.
SMRiP23577.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

DIPiDIP-48404N.
STRINGi3055.DAA00904.

Proteomic databases

PaxDbiP23577.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiDAA00904; DAA00904; DAA00904.
GeneIDi2716989.
GrameneiDAA00904; DAA00904; DAA00904.
KEGGicre:ChreCp001.

Phylogenomic databases

eggNOGiENOG410IEST. Eukaryota.
ENOG410XPEN. LUCA.
InParanoidiP23577.
KOiK02634.

Enzyme and pathway databases

BioCyciCHLAMY:CHRECP001-MONOMER.
MetaCyc:CHRECP001-MONOMER.

Miscellaneous databases

EvolutionaryTraceiP23577.

Family and domain databases

Gene3Di1.20.5.700. 1 hit.
2.60.40.830. 2 hits.
HAMAPiMF_00610. Cytb6_f_cytF. 1 hit.
InterProiIPR024058. Cyt-f_TM.
IPR002325. Cyt_f.
IPR024094. Cyt_f_lg_dom.
IPR011054. Rudment_hybrid_motif.
[Graphical view]
PfamiPF01333. Apocytochr_F_C. 1 hit.
PF16639. Apocytochr_F_N. 1 hit.
[Graphical view]
PRINTSiPR00610. CYTOCHROMEF.
SUPFAMiSSF103431. SSF103431. 1 hit.
SSF49441. SSF49441. 2 hits.
SSF51246. SSF51246. 1 hit.
PROSITEiPS51010. CYTF. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCYF_CHLRE
AccessioniPrimary (citable) accession number: P23577
Secondary accession number(s): B7U1E4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1991
Last sequence update: November 1, 1991
Last modified: November 2, 2016
This is version 128 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.