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Protein

Cytochrome b6-f complex subunit 7, chloroplastic

Gene

petM

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed-Annotation score: Annotation score: 4 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 - Biological processi

Complete GO annotation...

Keywords - Biological processi

Electron transport, Respiratory chain, Transport

Enzyme and pathway databases

BioCyciMetaCyc:CHLREDRAFT_147968-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome b6-f complex subunit 7, chloroplastic
Alternative name(s):
Cytochrome b6-f complex 4 kDa subunit
Cytochrome b6-f complex subunit PetM
Cytochrome b6-f complex subunit VII
Gene namesi
Name:petM
Synonyms:petX
OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)
Taxonomic identifieri3055 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini61 – 67LumenalSequence analysis7
Transmembranei68 – 88HelicalSequence analysisAdd BLAST21
Topological domaini89 – 99StromalSequence analysisAdd BLAST11

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 60Chloroplast3 PublicationsAdd BLAST60
ChainiPRO_000002386461 – 99Cytochrome b6-f complex subunit 7, chloroplasticAdd BLAST39

Proteomic databases

PaxDbiQ42496.
PRIDEiQ42496.

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.EDP03032.

Structurei

Secondary structure

199
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi63 – 93Combined sources31

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10M61-99[»]
ProteinModelPortaliQ42496.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ42496.

Family & Domainsi

Sequence similaritiesi

Belongs to the PetM family.Curated

Keywords - Domaini

Transit peptide, Transmembrane, Transmembrane helix

Family and domain databases

HAMAPiMF_00396. Cytb6_f_PetM. 1 hit.
InterProiIPR012595. PetM_cyt_b6/f_cplx_su7.
[Graphical view]
PfamiPF08041. PetM. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

Q42496-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAMSIAARSA CCGVAAPRSS TVRVAAARPA VRPSLRTAGQ KAAPSRGVAT
60 70 80 90
KAVNELAMIA GEAEFIAGTA LTMVGMTLVG LAIGFVLLRV ESLVEEGKI
Length:99
Mass (Da):9,998
Last modified:November 1, 1997 - v1
Checksum:i5B3E45315A701AE4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X92488 mRNA. Translation: CAA63221.1.
U36401 Genomic DNA. Translation: AAC49525.1.
PIRiT08070.
RefSeqiXP_001694096.1. XM_001694044.1.
UniGeneiCre.6650.

Genome annotation databases

EnsemblPlantsiEDP03032; EDP03032; CHLREDRAFT_147968.
GeneIDi5719581.
GrameneiEDP03032; EDP03032; CHLREDRAFT_147968.
KEGGicre:CHLREDRAFT_147968.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X92488 mRNA. Translation: CAA63221.1.
U36401 Genomic DNA. Translation: AAC49525.1.
PIRiT08070.
RefSeqiXP_001694096.1. XM_001694044.1.
UniGeneiCre.6650.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10M61-99[»]
ProteinModelPortaliQ42496.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi3055.EDP03032.

Proteomic databases

PaxDbiQ42496.
PRIDEiQ42496.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiEDP03032; EDP03032; CHLREDRAFT_147968.
GeneIDi5719581.
GrameneiEDP03032; EDP03032; CHLREDRAFT_147968.
KEGGicre:CHLREDRAFT_147968.

Enzyme and pathway databases

BioCyciMetaCyc:CHLREDRAFT_147968-MONOMER.

Miscellaneous databases

EvolutionaryTraceiQ42496.

Family and domain databases

HAMAPiMF_00396. Cytb6_f_PetM. 1 hit.
InterProiIPR012595. PetM_cyt_b6/f_cplx_su7.
[Graphical view]
PfamiPF08041. PetM. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiPETM_CHLRE
AccessioniPrimary (citable) accession number: Q42496
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1997
Last modified: October 5, 2016
This is version 78 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, Direct protein sequencing

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.