Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Cytochrome b6-f complex subunit 4

Gene

petD

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed-Annotation score: Annotation score: 3 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.

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Enzyme and pathway databases

BioCyciCHLAMY:CHRECP002-MONOMER.
MetaCyc:CHRECP002-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome b6-f complex subunit 4UniRule annotation
Alternative name(s):
17 kDa polypeptideUniRule annotation
Gene namesi
Name:petDUniRule annotation
Encoded oniPlastid; Chloroplast
OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)
Taxonomic identifieri3055 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas
Proteomesi
  • UP000006906 Componenti: Chloroplast

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei36 – 56HelicalUniRule annotationAdd BLAST21
Transmembranei95 – 115HelicalUniRule annotationAdd BLAST21
Transmembranei131 – 151HelicalUniRule annotationAdd BLAST21

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000618521 – 160Cytochrome b6-f complex subunit 4Add BLAST160

Post-translational modificationi

The N-terminus is blocked.

Proteomic databases

PaxDbiP23230.

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

STRINGi3055.DAA00905.

Structurei

Secondary structure

1160
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi12 – 20Combined sources9
Helixi24 – 26Combined sources3
Beta strandi27 – 30Combined sources4
Helixi34 – 38Combined sources5
Helixi39 – 57Combined sources19
Helixi79 – 81Combined sources3
Helixi82 – 90Combined sources9
Helixi94 – 108Combined sources15
Turni109 – 115Combined sources7
Helixi123 – 125Combined sources3
Helixi127 – 146Combined sources20
Helixi151 – 154Combined sources4

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10D1-159[»]
ProteinModelPortaliP23230.
SMRiP23230.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP23230.

Family & Domainsi

Sequence similaritiesi

Belongs to the cytochrome b family. PetD subfamily.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG4663. Eukaryota.
COG1290. LUCA.
InParanoidiP23230.
KOiK02637.

Family and domain databases

HAMAPiMF_01344. Cytb6_f_subIV. 1 hit.
InterProiIPR005798. Cyt_b/b6_C.
IPR005870. Cyt_b6/f_cplx_suIV.
[Graphical view]
PfamiPF00032. Cytochrom_B_C. 1 hit.
[Graphical view]
PIRSFiPIRSF000033. B6f_17K. 1 hit.
SUPFAMiSSF81648. SSF81648. 1 hit.
TIGRFAMsiTIGR01156. cytb6/f_IV. 1 hit.
PROSITEiPS51003. CYTB_CTER. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P23230-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSVTKKPDLS DPVLKAKLAK GMGHNTYGEP AWPNDLLYMF PVVILGTFAC
60 70 80 90 100
VIGLSVLDPA AMGEPANPFA TPLEILPEWY FYPVFQILRV VPNKLLGVLL
110 120 130 140 150
MAAVPAGLIT VPFIESINKF QNPYRRPIAT ILFLLGTLVA VWLGIGSTFP
160
IDISLTLGLF
Length:160
Mass (Da):17,442
Last modified:November 1, 1991 - v1
Checksum:i6B1C77BBB8E857A8
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti67N → F (PubMed:2060646).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56700 Genomic DNA. Translation: CAA40030.1.
X72919 Genomic DNA. Translation: CAA51424.1.
FJ423446 Genomic DNA. Translation: ACJ50092.1.
L05506 Genomic DNA. Translation: AAA84153.1.
BK000554 Genomic DNA. Translation: DAA00905.1.
PIRiS16918.
RefSeqiNP_958359.1. NC_005353.1.

Genome annotation databases

EnsemblPlantsiDAA00905; DAA00905; DAA00905.
GeneIDi2717021.
GrameneiDAA00905; DAA00905; DAA00905.
KEGGicre:ChreCp002.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X56700 Genomic DNA. Translation: CAA40030.1.
X72919 Genomic DNA. Translation: CAA51424.1.
FJ423446 Genomic DNA. Translation: ACJ50092.1.
L05506 Genomic DNA. Translation: AAA84153.1.
BK000554 Genomic DNA. Translation: DAA00905.1.
PIRiS16918.
RefSeqiNP_958359.1. NC_005353.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10D1-159[»]
ProteinModelPortaliP23230.
SMRiP23230.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi3055.DAA00905.

Proteomic databases

PaxDbiP23230.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiDAA00905; DAA00905; DAA00905.
GeneIDi2717021.
GrameneiDAA00905; DAA00905; DAA00905.
KEGGicre:ChreCp002.

Phylogenomic databases

eggNOGiKOG4663. Eukaryota.
COG1290. LUCA.
InParanoidiP23230.
KOiK02637.

Enzyme and pathway databases

BioCyciCHLAMY:CHRECP002-MONOMER.
MetaCyc:CHRECP002-MONOMER.

Miscellaneous databases

EvolutionaryTraceiP23230.

Family and domain databases

HAMAPiMF_01344. Cytb6_f_subIV. 1 hit.
InterProiIPR005798. Cyt_b/b6_C.
IPR005870. Cyt_b6/f_cplx_suIV.
[Graphical view]
PfamiPF00032. Cytochrom_B_C. 1 hit.
[Graphical view]
PIRSFiPIRSF000033. B6f_17K. 1 hit.
SUPFAMiSSF81648. SSF81648. 1 hit.
TIGRFAMsiTIGR01156. cytb6/f_IV. 1 hit.
PROSITEiPS51003. CYTB_CTER. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiPETD_CHLRE
AccessioniPrimary (citable) accession number: P23230
Secondary accession number(s): B7U1E5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1991
Last sequence update: November 1, 1991
Last modified: November 2, 2016
This is version 115 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, 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.