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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)DescriptionActionsGraphical viewLength
Metal bindingi355Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 27 PublicationsUniRule annotation2 Publications1
Metal bindingi355Calcium-manganese-oxide [Ca-4Mn-5O]; manganese 37 PublicationsUniRule annotation2 Publications1

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 lineageiBacteriaCyanobacteriaSynechococcalesSynechococcaceaeThermosynechococcus
Proteomesi
  • UP000000440 Componenti: Chromosome

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini1 – 38Cytoplasmic1 PublicationAdd BLAST38
Transmembranei39 – 53Helical1 PublicationAdd BLAST15
Topological domaini54 – 104Lumenal1 PublicationAdd BLAST51
Transmembranei105 – 118Helical1 PublicationAdd BLAST14
Topological domaini119 – 147Cytoplasmic1 PublicationAdd BLAST29
Transmembranei148 – 161Helical1 PublicationAdd BLAST14
Topological domaini162 – 226Lumenal1 PublicationAdd BLAST65
Transmembranei227 – 240Helical1 PublicationAdd BLAST14
Topological domaini241 – 259Cytoplasmic1 PublicationAdd BLAST19
Transmembranei260 – 273Helical1 PublicationAdd BLAST14
Topological domaini274 – 417Lumenal1 PublicationAdd BLAST144
Transmembranei418 – 432Helical1 PublicationAdd BLAST15
Topological domaini433 – 461Cytoplasmic1 PublicationAdd BLAST29

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00004308071 – 461Photosystem II CP43 reaction center proteinAdd BLAST461

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

1461
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi16 – 19Combined sources4
Helixi23 – 30Combined sources8
Helixi34 – 61Combined sources28
Helixi69 – 71Combined sources3
Helixi77 – 82Combined sources6
Beta strandi85 – 87Combined sources3
Helixi89 – 91Combined sources3
Helixi97 – 122Combined sources26
Turni129 – 131Combined sources3
Turni133 – 135Combined sources3
Helixi142 – 168Combined sources27
Beta strandi173 – 175Combined sources3
Beta strandi179 – 182Combined sources4
Beta strandi183 – 185Combined sources3
Helixi194 – 201Combined sources8
Turni207 – 209Combined sources3
Helixi211 – 214Combined sources4
Helixi218 – 241Combined sources24
Helixi246 – 251Combined sources6
Helixi256 – 280Combined sources25
Turni283 – 286Combined sources4
Helixi287 – 290Combined sources4
Helixi294 – 312Combined sources19
Turni316 – 318Combined sources3
Beta strandi324 – 331Combined sources8
Beta strandi337 – 339Combined sources3
Helixi342 – 346Combined sources5
Turni352 – 354Combined sources3
Helixi355 – 357Combined sources3
Beta strandi360 – 363Combined sources4
Helixi365 – 370Combined sources6
Helixi374 – 384Combined sources11
Beta strandi396 – 398Combined sources3
Helixi410 – 441Combined sources32
Helixi449 – 451Combined sources3
Helixi453 – 456Combined sources4

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB 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.
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
PDB 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.
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: November 2, 2016
This is version 97 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.