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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
ProteomesiUP000006906 Componenti: Chloroplast

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei36 – 5621HelicalUniRule annotationAdd
BLAST
Transmembranei95 – 11521HelicalUniRule annotationAdd
BLAST
Transmembranei131 – 15121HelicalUniRule annotationAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 160160Cytochrome b6-f complex subunit 4PRO_0000061852Add
BLAST

Post-translational modificationi

The N-terminus is blocked.

Proteomic databases

PRIDEiP23230.

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.

Structurei

Secondary structure

1
160
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi12 – 209Combined sources
Helixi24 – 263Combined sources
Beta strandi27 – 304Combined sources
Helixi34 – 385Combined sources
Helixi39 – 5719Combined sources
Helixi79 – 813Combined sources
Helixi82 – 909Combined sources
Helixi94 – 10815Combined sources
Turni109 – 1157Combined sources
Helixi123 – 1253Combined sources
Helixi127 – 14620Combined sources
Helixi151 – 1544Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10D1-159[»]
ProteinModelPortaliP23230.
SMRiP23230. Positions 4-159.
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

InParanoidiP23230.
KOiK02637.

Family and domain databases

HAMAPiMF_01344. Cytb6_f_subIV.
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)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti67 – 671N → F (PubMed:2060646).Curated

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.
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
EntryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10D1-159[»]
ProteinModelPortaliP23230.
SMRiP23230. Positions 4-159.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP23230.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

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

Phylogenomic databases

InParanoidiP23230.
KOiK02637.

Enzyme and pathway databases

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

Miscellaneous databases

EvolutionaryTraceiP23230.

Family and domain databases

HAMAPiMF_01344. Cytb6_f_subIV.
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...

Publicationsi

« Hide 'large scale' publications
  1. "Sequences of trnR-ACG and petD that contain a tRNA-like element within the chloroplast genome of Chlamydomonas reinhardtii."
    Yu W., Spreitzer R.J.
    Nucleic Acids Res. 19:957-957(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: 2137.
  2. "Nucleotide sequences of the continuous and separated petA, petB and petD chloroplast genes in Chlamydomonas reinhardtii."
    Bueschlen S., Choquet Y., Kuras R., Wollman F.A.
    FEBS Lett. 284:257-262(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: 137c / CC-125.
  3. "Nucleotide diversity of the Chlamydomonas reinhardtii plastid genome: addressing the mutational-hazard hypothesis."
    Smith D.R., Lee R.W.
    BMC Evol. Biol. 9:120-120(2009) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: CC-503.
  4. "In vivo analysis of Chlamydomonas chloroplast petD gene expression using stable transformation of beta-glucuronidase translational fusions."
    Sakamoto W., Kindle K.L., Stern D.B.
    Proc. Natl. Acad. Sci. U.S.A. 90:497-501(1993) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-8.
    Strain: CC-400.
  5. "The Chlamydomonas reinhardtii plastid chromosome: islands of genes in a sea of repeats."
    Maul J.E., Lilly J.W., Cui L., dePamphilis C.W., Miller W., Harris E.H., Stern D.B.
    Plant Cell 14:2659-2679(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: IDENTIFICATION, COMPLETE PLASTID GENOME.
  6. "Purification and characterization of the cytochrome b6 f complex from Chlamydomonas reinhardtii."
    Pierre Y., Breyton C., Kramer D., Popot J.-L.
    J. Biol. Chem. 270:29342-29349(1995) [PubMed] [Europe PMC] [Abstract]
    Cited for: CHARACTERIZATION.
    Strain: WT12.
  7. "An atypical haem in the cytochrome b(6)f complex."
    Stroebel D., Choquet Y., Popot J.-L., Picot D.
    Nature 426:413-418(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: X-RAY CRYSTALLOGRAPHY (3.1 ANGSTROMS) OF 1-159.

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: May 27, 2015
This is version 108 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

External Data

Dasty 3

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 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.