Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Photosystem II manganese-stabilizing polypeptide

Gene

psbO

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

Functioni

Part of the oxygen-evolving complex associated with photosystem II (PSII). 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.3 Publications

Cofactori

Note: PSII binds multiple chlorophylls, carotenoids and specific lipids.9 Publications

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processPhotosynthesis

Enzyme and pathway databases

BioCyciTELO197221:G1G3I-458-MONOMER

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem II manganese-stabilizing polypeptide
Short name:
MSP
Gene namesi
Name:psbO
Ordered Locus Names:tll0444
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

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 262 PublicationsAdd BLAST26
ChainiPRO_000002956727 – 272Photosystem II manganese-stabilizing polypeptideAdd BLAST246

Interactioni

Subunit structurei

The cyanobacterial oxygen-evolving complex is composed of PsbO, PsbP, PsbQ, PsbV and PsbU. PsbP and PsbQ are not seen in the crystal structures; however there is biochemical evidence that they are part of the OEC (By similarity). 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.By similarity9 Publications

Protein-protein interaction databases

DIPiDIP-48499N
IntActiP0A431, 1 interactor
STRINGi197221.tll0444

Structurei

Secondary structure

1272
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi33 – 36Combined sources4
Turni37 – 40Combined sources4
Helixi41 – 43Combined sources3
Beta strandi60 – 62Combined sources3
Beta strandi64 – 79Combined sources16
Beta strandi84 – 86Combined sources3
Beta strandi91 – 93Combined sources3
Beta strandi95 – 98Combined sources4
Beta strandi104 – 113Combined sources10
Beta strandi119 – 127Combined sources9
Beta strandi129 – 135Combined sources7
Turni136 – 138Combined sources3
Beta strandi141 – 147Combined sources7
Beta strandi152 – 154Combined sources3
Beta strandi160 – 162Combined sources3
Beta strandi167 – 174Combined sources8
Beta strandi190 – 196Combined sources7
Helixi206 – 208Combined sources3
Helixi209 – 212Combined sources4
Beta strandi219 – 231Combined sources13
Turni232 – 235Combined sources4
Beta strandi236 – 246Combined sources11
Turni250 – 253Combined sources4
Beta strandi258 – 270Combined sources13

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1S5LX-ray3.50O/o27-272[»]
2AXTX-ray3.00O/o26-272[»]
3KZIX-ray3.60O27-272[»]
4FBYX-ray6.56O/f27-272[»]
4IXQX-ray5.70O/o1-272[»]
4IXRX-ray5.90O/o1-272[»]
4PBUX-ray5.00O/o30-272[»]
4PJ0X-ray2.44O/o1-272[»]
4RVYX-ray5.50O/o30-272[»]
4TNHX-ray4.90O/o1-272[»]
4TNIX-ray4.60O/o1-272[»]
4TNJX-ray4.50O/o1-272[»]
4TNKX-ray5.20O/o1-272[»]
4V62X-ray2.90AO/BO26-272[»]
4V82X-ray3.20AO/BO26-272[»]
5E79X-ray3.50O/o30-272[»]
5E7CX-ray4.50O/o30-272[»]
5H2FX-ray2.20O/o30-272[»]
5KAFX-ray3.00O/o1-272[»]
5KAIX-ray2.80O/o1-272[»]
5MX2X-ray2.20O/o1-272[»]
5TISX-ray2.25O/o1-272[»]
ProteinModelPortaliP0A431
SMRiP0A431
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP0A431

Family & Domainsi

Sequence similaritiesi

Belongs to the PsbO family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiENOG4105CPJ Bacteria
ENOG410XP4G LUCA
HOGENOMiHOG000232492
KOiK02716
OMAiGKANDCP
OrthoDBiPOG091H13MG

Family and domain databases

InterProiView protein in InterPro
IPR011250 OMP/PagP_b-brl
IPR002628 PSII_MSP
PANTHERiPTHR34058 PTHR34058, 1 hit
PfamiView protein in Pfam
PF01716 MSP, 1 hit
SUPFAMiSSF56925 SSF56925, 1 hit

Sequencei

Sequence statusi: Complete.

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

P0A431-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKYRILMATL LAVCLGIFSL SAPAFAAKQT LTYDDIVGTG LANKCPTLDD
60 70 80 90 100
TARGAYPIDS SQTYRIARLC LQPTTFLVKE EPKNKRQEAE FVPTKLVTRE
110 120 130 140 150
TTSLDQIQGE LKVNSDGSLT FVEEDGIDFQ PVTVQMAGGE RIPLLFTVKN
160 170 180 190 200
LVASTQPNVT SITTSTDFKG EFNVPSYRTA NFLDPKGRGL ASGYDSAIAL
210 220 230 240 250
PQAKEEELAR ANVKRFSLTK GQISLNVAKV DGRTGEIAGT FESEQLSDDD
260 270
MGAHEPHEVK IQGVFYASIE PA
Length:272
Mass (Da):29,608
Last modified:March 15, 2005 - v1
Checksum:i1F053A3453990141
GO

Mass spectrometryi

Molecular mass is 26830±30 Da from positions 27 - 272. Determined by MALDI. 1 Publication
Molecular mass is 26820 Da from positions 27 - 272. Determined by MALDI. 1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000039 Genomic DNA Translation: BAC07996.1
RefSeqiNP_681234.1, NC_004113.1
WP_011056297.1, NC_004113.1

Genome annotation databases

EnsemblBacteriaiBAC07996; BAC07996; BAC07996
GeneIDi1012686
KEGGitel:tll0444
PATRICifig|197221.4.peg.468

Similar proteinsi

Entry informationi

Entry nameiPSBO_THEEB
AccessioniPrimary (citable) accession number: P0A431
Secondary accession number(s): P55221, Q54074
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: March 15, 2005
Last modified: May 23, 2018
This is version 93 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, Reference proteome

Documents

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

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health