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Q42496

- PETM_CHLRE

UniProt

Q42496 - PETM_CHLRE

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Protein

Cytochrome b6-f complex subunit 7, chloroplastic

Gene

petM

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed - 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

  1. oxidation-reduction process Source: UniProtKB-KW
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)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini61 – 677LumenalSequence Analysis
Transmembranei68 – 8821HelicalSequence AnalysisAdd
BLAST
Topological domaini89 – 9911StromalSequence AnalysisAdd
BLAST

GO - Cellular componenti

  1. chloroplast Source: UniProtKB-KW
  2. cytochrome b6f complex Source: InterPro
  3. integral component of membrane Source: UniProtKB-KW
  4. respiratory chain Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transit peptidei1 – 6060Chloroplast3 PublicationsAdd
BLAST
Chaini61 – 9939Cytochrome b6-f complex subunit 7, chloroplasticPRO_0000023864Add
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
99
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi63 – 9331Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1Q90X-ray3.10M61-99[»]
ProteinModelPortaliQ42496.
SMRiQ42496. Positions 62-95.
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.
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

GeneIDi5719581.
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 .
PIRi T08070.
RefSeqi XP_001694096.1. XM_001694044.1.
UniGenei Cre.6650.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
Entry Method Resolution (Å) Chain Positions PDBsum
1Q90 X-ray 3.10 M 61-99 [» ]
ProteinModelPortali Q42496.
SMRi Q42496. Positions 62-95.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 5719581.
KEGGi cre:CHLREDRAFT_147968.

Enzyme and pathway databases

BioCyci MetaCyc:CHLREDRAFT_147968-MONOMER.

Miscellaneous databases

EvolutionaryTracei Q42496.

Family and domain databases

HAMAPi MF_00396. Cytb6_f_PetM.
InterProi IPR012595. PetM_cyt_b6/f_cplx_su7.
[Graphical view ]
Pfami PF08041. PetM. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "The 4-kDa nuclear-encoded PetM polypeptide of the chloroplast cytochrome b6f complex. Nucleic acid and protein sequences, targeting signals, transmembrane topology."
    de Vitry C., Breyton C., Pierre Y., Popot J.-L.
    J. Biol. Chem. 271:10667-10671(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 61-98.
    Strain: cw15.
  2. "Nucleotide sequence of the PetM gene encoding a 4 kDa subunit of the cytochrome b6f complex from Chlamydomonas reinhardtii."
    Ketchner S.L., Malkin R.
    Biochim. Biophys. Acta 1273:195-197(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    Strain: CC-1928.
  3. "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: PROTEIN SEQUENCE OF 61-87, CHARACTERIZATION.
    Strain: WT12.
  4. "Low molecular weight subunits associated with the cytochrome b6f complexes from spinach and Chlamydomonas reinhardtii."
    Schmidt C.L., Malkin R.
    Photosyn. Res. 38:73-81(1993)
    Cited for: PROTEIN SEQUENCE OF 61-82.
    Strain: CC-124.
  5. "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 61-99.

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: November 26, 2014
This is version 68 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

External Data

Dasty 3