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Protein

Cytochrome b6-f complex subunit 4

Gene

petD

Organism
Mastigocladus laminosus (Fischerella sp.)
Status
Reviewed-Annotation score: -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.1 Publication

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processElectron transport, Photosynthesis, Transport

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome b6-f complex subunit 4UniRule annotation
Alternative name(s):
17 kDa polypeptideUniRule annotation
Cytochrome b6-f complex subunit IV1 Publication
Gene namesi
Name:petDUniRule annotation
OrganismiMastigocladus laminosus (Fischerella sp.)
Taxonomic identifieri83541 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaNostocalesHapalosiphonaceaeMastigocladus

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini1 – 35Cytoplasmic1 PublicationAdd BLAST35
Transmembranei36 – 56HelicalUniRule annotation1 PublicationAdd BLAST21
Topological domaini57 – 94Lumenal, thylakoid1 PublicationAdd BLAST38
Transmembranei95 – 115HelicalUniRule annotation1 PublicationAdd BLAST21
Topological domaini116 – 130Cytoplasmic1 PublicationAdd BLAST15
Transmembranei131 – 151HelicalUniRule annotation1 PublicationAdd BLAST21
Topological domaini152 – 160Lumenal, thylakoid1 Publication9

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Thylakoid

Pathology & Biotechi

Chemistry databases

DrugBankiDB08453 2-NONYL-4-HYDROXYQUINOLINE N-OXIDE
DB04646 Dibromothymoquinone

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000619011 – 160Cytochrome b6-f complex subunit 4Add BLAST160

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.1 Publication

Structurei

Secondary structure

1160
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

ProteinModelPortaliP83792
SMRiP83792
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

CDDicd00290 cytochrome_b_C, 1 hit
HAMAPiMF_01344 Cytb6_f_subIV, 1 hit
InterProiView protein in InterPro
IPR005798 Cyt_b/b6_C
IPR036150 Cyt_b/b6_C_sf
IPR005870 Cyt_b6/f_cplx_suIV
PfamiView protein in Pfam
PF00032 Cytochrom_B_C, 1 hit
PIRSFiPIRSF000033 B6f_17K, 1 hit
SUPFAMiSSF81648 SSF81648, 1 hit
TIGRFAMsiTIGR01156 cytb6/f_IV, 1 hit
PROSITEiView protein in PROSITE
PS51003 CYTB_CTER, 1 hit

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

Similar proteinsi

Entry informationi

Entry nameiPETD_MASLA
AccessioniPrimary (citable) accession number: P83792
Secondary accession number(s): Q5YJJ5
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 13, 2004
Last sequence update: January 10, 2006
Last modified: December 20, 2017
This is version 80 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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