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
Mastigocladus laminosus (Fischerella sp.)
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

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
OrganismiMastigocladus laminosus (Fischerella sp.)
Taxonomic identifieri83541 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaStigonematalesMastigocladus

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

Membrane, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 160160Cytochrome b6-f complex subunit 4PRO_0000061901Add
BLAST

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 – 198Combined sources
Beta strandi26 – 305Combined sources
Helixi31 – 355Combined sources
Turni36 – 394Combined sources
Helixi40 – 5718Combined sources
Helixi79 – 813Combined sources
Helixi82 – 909Combined sources
Helixi94 – 11421Combined sources
Helixi115 – 1173Combined sources
Beta strandi119 – 1213Combined sources
Helixi123 – 1253Combined sources
Helixi127 – 14822Combined sources
Helixi151 – 1533Combined sources
Beta strandi154 – 1563Combined sources
Turni157 – 1593Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1VF5X-ray3.00B/O1-160[»]
2D2CX-ray3.80B/O1-160[»]
2E74X-ray3.00B1-160[»]
2E75X-ray3.55B1-160[»]
2E76X-ray3.41B1-160[»]
4H0LX-ray3.25B1-160[»]
4H13X-ray3.07B1-160[»]
4I7ZX-ray2.80B1-160[»]
4PV1X-ray3.00B1-160[»]
ProteinModelPortaliP83792.
SMRiP83792. Positions 1-160.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP83792.

Family & Domainsi

Sequence similaritiesi

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

Keywords - Domaini

Transmembrane, Transmembrane helix

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.

P83792-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MATLKKPDLS DPKLRAKLAK GMGHNYYGEP AWPNDLLYVF PVVIMGTFAC
60 70 80 90 100
IVALSVLDPA MVGEPADPFA TPLEILPEWY LYPVFQILRS VPNKLLGVLL
110 120 130 140 150
MASVPLGLIL VPFIENVNKF QNPFRRPVAT TIFLFGTLVT IWLGIGATFP
160
LDKTLTLGLF
Length:160
Mass (Da):17,674
Last modified:January 10, 2006 - v2
Checksum:i3592F24AD0B6F4DE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY390357 Genomic DNA. Translation: AAR26243.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY390357 Genomic DNA. Translation: AAR26243.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1VF5X-ray3.00B/O1-160[»]
2D2CX-ray3.80B/O1-160[»]
2E74X-ray3.00B1-160[»]
2E75X-ray3.55B1-160[»]
2E76X-ray3.41B1-160[»]
4H0LX-ray3.25B1-160[»]
4H13X-ray3.07B1-160[»]
4I7ZX-ray2.80B1-160[»]
4PV1X-ray3.00B1-160[»]
ProteinModelPortaliP83792.
SMRiP83792. Positions 1-160.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP83792.

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

  1. "Cloning and characterization of the petBD and petCA operon from the thermophilic cyanobacterium Mastigocladus laminosus."
    Yan J., Zhang H., Cramer W.A.
    Submitted (SEP-2003) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "Structure of the cytochrome b6f complex of oxygenic photosynthesis: tuning the cavity."
    Kurisu G., Zhang H., Smith J.L., Cramer W.A.
    Science 302:1009-1014(2003) [PubMed] [Europe PMC] [Abstract]
    Cited for: X-RAY CRYSTALLOGRAPHY (3.0 ANGSTROMS).

Entry informationi

Entry nameiPETD_MASLA
AccessioniPrimary (citable) accession number: P83792
Secondary accession number(s): Q5YJJ5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 13, 2004
Last sequence update: January 10, 2006
Last modified: January 7, 2015
This is version 70 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure

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.