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Protein

Cytochrome c-550

Gene

psbV

Organism
Thermosynechococcus elongatus (strain BP-1)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Low-potential cytochrome c that plays a role in the oxygen-evolving complex of photosystem II. It is not essential for growth under normal conditions but is required under low CO2 concentrations. PSII is a light-driven water plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating a proton gradient subsequently used for ATP formation.4 Publications

Cofactori

Note: Binds 1 heme group covalently per subunit. PSII binds multiple chlorophylls, carotenoids and specific lipids.12 Publications

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi67Iron (heme axial ligand)5 Publications3 Publications1
Metal bindingi118Iron (heme axial ligand)5 Publications3 Publications1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processElectron transport, Photosynthesis, Transport
LigandHeme, Iron, Metal-binding

Enzyme and pathway databases

BioCyciTELO197221:G1G3I-1307-MONOMER

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c-550UniRule annotation
Alternative name(s):
Cytochrome c-549
Cytochrome c550UniRule annotation
Low-potential cytochrome cUniRule annotation
Gene namesi
Name:psbVUniRule annotation
Ordered Locus Names:tll1285
OrganismiThermosynechococcus elongatus (strain BP-1)
Taxonomic identifieri197221 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesSynechococcaceaeThermosynechococcus
Proteomesi
  • UP000000440 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

Pathology & Biotechi

Disruption phenotypei

Cells do not grow photoautotrophically under low CO2 concentrations.1 Publication

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 26UniRule annotation3 PublicationsAdd BLAST26
ChainiPRO_000000651827 – 163Cytochrome c-550Add BLAST137

Interactioni

Subunit structurei

The cyanobacterial oxygen-evolving complex is composed of PsbO, PsbP, PsbQ, PsbV and PsbU (By similarity). PsbP and PsbQ are not seen in the crystal structures; however there is biochemical evidence that they are part of the OEC. Monomer in the isolated crystal structure. Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.UniRule annotation10 Publications

Protein-protein interaction databases

DIPiDIP-48502N
IntActiP0A386, 19 interactors
STRINGi197221.tll1285

Structurei

Secondary structure

1163
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi31 – 34Combined sources4
Beta strandi35 – 39Combined sources5
Beta strandi44 – 46Combined sources3
Helixi49 – 62Combined sources14
Helixi64 – 67Combined sources4
Helixi68 – 70Combined sources3
Beta strandi73 – 75Combined sources3
Helixi76 – 78Combined sources3
Helixi82 – 86Combined sources5
Beta strandi88 – 90Combined sources3
Helixi95 – 103Combined sources9
Beta strandi110 – 113Combined sources4
Turni115 – 117Combined sources3
Helixi121 – 123Combined sources3
Turni124 – 126Combined sources3
Helixi128 – 130Combined sources3
Helixi135 – 152Combined sources18
Helixi153 – 155Combined sources3
Turni156 – 158Combined sources3
Helixi160 – 162Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1MZ4X-ray1.80A27-163[»]
1S5LX-ray3.50V/v27-163[»]
1W5CX-ray3.20T/V1-163[»]
2AXTX-ray3.00V/v27-163[»]
3KZIX-ray3.60V27-163[»]
4FBYX-ray6.56V/i27-163[»]
4IXQX-ray5.70V/v1-163[»]
4IXRX-ray5.90V/v1-163[»]
4PBUX-ray5.00V/v27-163[»]
4PJ0X-ray2.44V/v1-163[»]
4RVYX-ray5.50V/v27-163[»]
4TNHX-ray4.90V/v1-163[»]
4TNIX-ray4.60V/v1-163[»]
4TNJX-ray4.50V/v1-163[»]
4TNKX-ray5.20V/v1-163[»]
4V62X-ray2.90AV/BV27-163[»]
4V82X-ray3.20AV/BV27-163[»]
5E79X-ray3.50V/v27-163[»]
5E7CX-ray4.50V/v27-163[»]
5H2FX-ray2.20V/v27-163[»]
5KAFX-ray3.00V/v1-163[»]
5KAIX-ray2.80V/v1-163[»]
5MX2X-ray2.20V/v1-163[»]
5TISX-ray2.25V/v1-163[»]
ProteinModelPortaliP0A386
SMRiP0A386
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP0A386

Family & Domainsi

Sequence similaritiesi

Belongs to the cytochrome c family. PsbV subfamily.UniRule annotation

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG4108UQX Bacteria
ENOG4111IIK LUCA
HOGENOMiHOG000276786
KOiK02720
OMAiWGGGKIY
OrthoDBiPOG091H143E

Family and domain databases

Gene3Di1.10.760.10, 1 hit
HAMAPiMF_01378 PSII_Cyt550, 1 hit
InterProiView protein in InterPro
IPR009056 Cyt_c-like_dom
IPR036909 Cyt_c-like_dom_sf
IPR029490 Cytochrom_C550
IPR016003 PSII_cyt_c550
IPR017851 PSII_PsbV_cyt_c550
PfamiView protein in Pfam
PF14495 Cytochrom_C550, 1 hit
PIRSFiPIRSF005890 Phot_II_cyt_c550, 1 hit
SUPFAMiSSF46626 SSF46626, 2 hits
TIGRFAMsiTIGR03045 PS_II_C550, 1 hit
PROSITEiView protein in PROSITE
PS51007 CYTC, 1 hit

Sequencei

Sequence statusi: Complete.

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

P0A386-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLKKCVWLAV ALCLCLWQFT MGTALAAELT PEVLTVPLNS EGKTITLTEK
60 70 80 90 100
QYLEGKRLFQ YACASCHVGG ITKTNPSLDL RTETLALATP PRDNIEGLVD
110 120 130 140 150
YMKNPTTYDG EQEIAEVHPS LRSADIFPKM RNLTEKDLVA IAGHILVEPK
160
ILGDKWGGGK VYY
Length:163
Mass (Da):18,027
Last modified:March 15, 2005 - v1
Checksum:iDA634C5C4084F676
GO

Mass spectrometryi

Molecular mass is 15752±11 Da from positions 27 - 163. Determined by MALDI. Mass includes covalently attached heme group.1 Publication
Molecular mass is 15743 Da from positions 27 - 163. Determined by MALDI. Mass includes covalently attached heme group.1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB052597 Genomic DNA Translation: BAB20059.1
BA000039 Genomic DNA Translation: BAC08837.1
RefSeqiNP_682075.1, NC_004113.1
WP_011057125.1, NC_004113.1

Genome annotation databases

EnsemblBacteriaiBAC08837; BAC08837; BAC08837
GeneIDi1011288
KEGGitel:tll1285
PATRICifig|197221.4.peg.1352

Similar proteinsi

Entry informationi

Entry nameiCY550_THEEB
AccessioniPrimary (citable) accession number: P0A386
Secondary accession number(s): P56150, Q9ETF4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: March 15, 2005
Last modified: April 25, 2018
This is version 105 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

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