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Protein

Photosystem II CP43 reaction center protein

Gene

psbC

Organism
Thermosynechococcus elongatus (strain BP-1)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating O2 and a proton gradient subsequently used for ATP formation.UniRule annotation3 Publications

Cofactori

Note: Binds multiple chlorophylls and provides some of the ligands for the Ca-4Mn-5O cluster of the oxygen-evolving complex. It may also provide a ligand for a Cl- that is required for oxygen evolution. PSII binds additional chlorophylls, carotenoids and specific lipids.UniRule annotation10 Publications

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi355 – 3551Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 27 PublicationsUniRule annotation2 Publications
Metal bindingi355 – 3551Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 37 PublicationsUniRule annotation2 Publications

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Photosynthesis

Keywords - Ligandi

Chlorophyll, Chromophore, Manganese, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem II CP43 reaction center proteinUniRule annotation
Alternative name(s):
PSII 43 kDa proteinUniRule annotation
Protein CP-43UniRule annotation
Gene namesi
Name:psbCUniRule annotation
Ordered Locus Names:tlr1631
OrganismiThermosynechococcus elongatus (strain BP-1)
Taxonomic identifieri197221 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesThermosynechococcus
Proteomesi
  • UP000000440 Componenti: Chromosome

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 3838Cytoplasmic1 PublicationAdd
BLAST
Transmembranei39 – 5315Helical1 PublicationAdd
BLAST
Topological domaini54 – 10451Lumenal1 PublicationAdd
BLAST
Transmembranei105 – 11814Helical1 PublicationAdd
BLAST
Topological domaini119 – 14729Cytoplasmic1 PublicationAdd
BLAST
Transmembranei148 – 16114Helical1 PublicationAdd
BLAST
Topological domaini162 – 22665Lumenal1 PublicationAdd
BLAST
Transmembranei227 – 24014Helical1 PublicationAdd
BLAST
Topological domaini241 – 25919Cytoplasmic1 PublicationAdd
BLAST
Transmembranei260 – 27314Helical1 PublicationAdd
BLAST
Topological domaini274 – 417144Lumenal1 PublicationAdd
BLAST
Transmembranei418 – 43215Helical1 PublicationAdd
BLAST
Topological domaini433 – 46129Cytoplasmic1 PublicationAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 461461Photosystem II CP43 reaction center proteinPRO_0000430807Add
BLAST

Interactioni

Subunit structurei

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, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.UniRule annotation10 Publications

Protein-protein interaction databases

DIPiDIP-48489N.
STRINGi197221.tlr1631.

Structurei

Secondary structure

1
461
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Helixi16 – 194Combined sources
Helixi23 – 308Combined sources
Helixi34 – 6128Combined sources
Helixi69 – 713Combined sources
Helixi77 – 826Combined sources
Beta strandi85 – 873Combined sources
Helixi89 – 913Combined sources
Helixi97 – 12226Combined sources
Turni129 – 1313Combined sources
Turni133 – 1353Combined sources
Helixi142 – 16827Combined sources
Beta strandi173 – 1753Combined sources
Beta strandi179 – 1824Combined sources
Beta strandi183 – 1853Combined sources
Helixi194 – 2018Combined sources
Turni207 – 2093Combined sources
Helixi211 – 2144Combined sources
Helixi218 – 24124Combined sources
Helixi246 – 2516Combined sources
Helixi256 – 28025Combined sources
Turni283 – 2864Combined sources
Helixi287 – 2904Combined sources
Helixi294 – 31219Combined sources
Turni316 – 3183Combined sources
Beta strandi324 – 3318Combined sources
Beta strandi337 – 3393Combined sources
Helixi342 – 3465Combined sources
Turni352 – 3543Combined sources
Helixi355 – 3573Combined sources
Beta strandi360 – 3634Combined sources
Helixi365 – 3706Combined sources
Helixi374 – 38411Combined sources
Beta strandi396 – 3983Combined sources
Helixi410 – 44132Combined sources
Helixi449 – 4513Combined sources
Helixi453 – 4564Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1S5LX-ray3.50C/c2-461[»]
1W5CX-ray3.20C/I2-461[»]
2AXTX-ray3.00C/c2-461[»]
3KZIX-ray3.60C1-461[»]
4FBYX-ray6.56C/P1-461[»]
4IXQX-ray5.70C/c1-461[»]
4IXRX-ray5.90C/c1-461[»]
4PBUX-ray5.00C/c7-461[»]
4PJ0X-ray2.44C/c1-461[»]
4RVYX-ray5.50C/c1-461[»]
4TNHX-ray4.90C/c1-461[»]
4TNIX-ray4.60C/c1-461[»]
4TNJX-ray4.50C/c1-461[»]
4TNKX-ray5.20C/c1-461[»]
4V62X-ray2.90AC/BC1-461[»]
4V82X-ray3.20AC/BC1-461[»]
5E7CX-ray4.50C/c11-461[»]
ProteinModelPortaliQ8DIF8.
SMRiQ8DIF8. Positions 15-461.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ8DIF8.

Family & Domainsi

Sequence similaritiesi

Belongs to the PsbB/PsbC family. PsbC subfamily.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105E9X. Bacteria.
ENOG410XQVF. LUCA.
HOGENOMiHOG000111335.
KOiK02705.
OMAiFFFLVGH.
OrthoDBiPOG091H14RN.

Family and domain databases

HAMAPiMF_01496. PSII_PsbC_CP43. 1 hit.
InterProiIPR000932. PS_antenna-like.
IPR005869. PSII_PsbC.
[Graphical view]
PfamiPF00421. PSII. 1 hit.
[Graphical view]
SUPFAMiSSF161077. SSF161077. 1 hit.
TIGRFAMsiTIGR01153. psbC. 1 hit.

Sequencei

Sequence statusi: Complete.

Q8DIF8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVTLSSNSIF ATNRDQESSG FAWWAGNARL INLSGKLLGA HVAHAGLIVF
60 70 80 90 100
WAGAMTLFEL AHFIPEKPMY EQGLILIPHI ATLGWGVGPG GEVVDTFPFF
110 120 130 140 150
VVGVVHLISS AVLGFGGVYH AIRGPETLEE YSSFFGYDWK DKNKMTTILG
160 170 180 190 200
FHLIVLGIGA LLLVAKAMFF GGLYDTWAPG GGDVRVITNP TLDPRVIFGY
210 220 230 240 250
LLKSPFGGEG WIVSVNNLED VVGGHIWIGL ICIAGGIWHI LTTPFGWARR
260 270 280 290 300
AFIWSGEAYL SYSLGALSMM GFIATCFVWF NNTVYPSEFY GPTGPEASQA
310 320 330 340 350
QAMTFLIRDQ KLGANVGSAQ GPTGLGKYLM RSPTGEIIFG GETMRFWDFR
360 370 380 390 400
GPWLEPLRGP NGLDLNKIKN DIQPWQERRA AEYMTHAPLG SLNSVGGVAT
410 420 430 440 450
EINSVNFVSP RSWLATSHFV LAFFFLVGHL WHAGRARAAA AGFEKGIDRE
460
SEPVLSMPSL D
Length:461
Mass (Da):50,245
Last modified:February 5, 2008 - v2
Checksum:i6A07B683DCB519B7
GO

Mass spectrometryi

Molecular mass is 51704±87 Da from positions 1 - 461. Determined by MALDI. 1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000039 Genomic DNA. Translation: BAC09183.2.
RefSeqiNP_682421.1. NC_004113.1.

Genome annotation databases

EnsemblBacteriaiBAC09183; BAC09183; BAC09183.
GeneIDi1010644.
KEGGitel:tlr1631.
PATRICi23928636. VBITheElo119873_1711.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000039 Genomic DNA. Translation: BAC09183.2.
RefSeqiNP_682421.1. NC_004113.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1S5LX-ray3.50C/c2-461[»]
1W5CX-ray3.20C/I2-461[»]
2AXTX-ray3.00C/c2-461[»]
3KZIX-ray3.60C1-461[»]
4FBYX-ray6.56C/P1-461[»]
4IXQX-ray5.70C/c1-461[»]
4IXRX-ray5.90C/c1-461[»]
4PBUX-ray5.00C/c7-461[»]
4PJ0X-ray2.44C/c1-461[»]
4RVYX-ray5.50C/c1-461[»]
4TNHX-ray4.90C/c1-461[»]
4TNIX-ray4.60C/c1-461[»]
4TNJX-ray4.50C/c1-461[»]
4TNKX-ray5.20C/c1-461[»]
4V62X-ray2.90AC/BC1-461[»]
4V82X-ray3.20AC/BC1-461[»]
5E7CX-ray4.50C/c11-461[»]
ProteinModelPortaliQ8DIF8.
SMRiQ8DIF8. Positions 15-461.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

DIPiDIP-48489N.
STRINGi197221.tlr1631.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAC09183; BAC09183; BAC09183.
GeneIDi1010644.
KEGGitel:tlr1631.
PATRICi23928636. VBITheElo119873_1711.

Phylogenomic databases

eggNOGiENOG4105E9X. Bacteria.
ENOG410XQVF. LUCA.
HOGENOMiHOG000111335.
KOiK02705.
OMAiFFFLVGH.
OrthoDBiPOG091H14RN.

Miscellaneous databases

EvolutionaryTraceiQ8DIF8.

Family and domain databases

HAMAPiMF_01496. PSII_PsbC_CP43. 1 hit.
InterProiIPR000932. PS_antenna-like.
IPR005869. PSII_PsbC.
[Graphical view]
PfamiPF00421. PSII. 1 hit.
[Graphical view]
SUPFAMiSSF161077. SSF161077. 1 hit.
TIGRFAMsiTIGR01153. psbC. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPSBC_THEEB
AccessioniPrimary (citable) accession number: Q8DIF8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 29, 2014
Last sequence update: February 5, 2008
Last modified: September 7, 2016
This is version 95 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

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.