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P46269 (QCR8_SOLTU) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 66. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Cytochrome b-c1 complex subunit 8
Alternative name(s):
Complex III subunit 8
Complex III subunit VII
Ubiquinol-cytochrome c reductase complex 8.2 kDa protein
Ubiquinol-cytochrome c reductase complex ubiquinone-binding protein QP-C
OrganismSolanum tuberosum (Potato) [Reference proteome]
Taxonomic identifier4113 [NCBI]
Taxonomic lineageEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridslamiidsSolanalesSolanaceaeSolanoideaeSolaneaeSolanum

Protein attributes

Sequence length72 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at protein level

General annotation (Comments)

Function

This is a component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is part of the mitochondrial respiratory chain. This subunit, together with cytochrome b, binds to ubiquinone.

Subunit structure

Plants bc1 complex contains 10 subunits; 3 respiratory subunits, 2 core proteins and 5 low-molecular weight proteins.

Subcellular location

Mitochondrion inner membrane.

Sequence similarities

Belongs to the UQCRQ/QCR8 family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed Ref.1
Chain2 – 7271Cytochrome b-c1 complex subunit 8
PRO_0000193548

Experimental info

Sequence conflict151I → L AA sequence Ref.2

Sequences

Sequence LengthMass (Da)Tools
P46269 [UniParc].

Last modified January 23, 2007. Version 2.
Checksum: 3AC5C12019223DA6

FASTA728,317
        10         20         30         40         50         60 
MGKQPVKLKA VVYAISPFQQ KIMPGLWKDL PGKIHHKVSE NWISATLLLG PLVGTYSYVQ 

        70 
HFLEKEKLEH RY 

« Hide

References

[1]"Primary structure, cell-free synthesis and mitochondrial targeting of the 8.2 kDa protein of cytochrome c reductase from potato."
Braun H.-P., Kruft V., Schmitz U.K.
Biochim. Biophys. Acta 1188:367-372(1994) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 2-28.
Strain: cv. Bintje.
Tissue: Tuber.
[2]"Molecular identification of the ten subunits of cytochrome-c reductase from potato mitochondria."
Braun H.-P., Kruft V., Schmitz U.K.
Planta 193:99-106(1994) [PubMed] [Europe PMC] [Abstract]
Cited for: PROTEIN SEQUENCE OF 9-28 AND 67-72.
Strain: cv. Hansa.
Tissue: Tuber.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
X79275 mRNA. Translation: CAA55862.1.
PIRT07370.

3D structure databases

ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Family and domain databases

InterProIPR020101. Cyt_b-c1_8-plants.
IPR004205. Cyt_bc1_su8.
[Graphical view]
PfamPF10890. DUF2741. 1 hit.
[Graphical view]
ProDomPD056240. Cytochrome_b-c1_8. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMSSF81508. SSF81508. 1 hit.
ProtoNetSearch...

Entry information

Entry nameQCR8_SOLTU
AccessionPrimary (citable) accession number: P46269
Entry history
Integrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: January 23, 2007
Last modified: April 16, 2014
This is version 66 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families