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Protein

Oxygen-evolving enhancer protein 1-2, chloroplastic

Gene

PSBO2

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Stabilizes the manganese cluster which is the primary site of water splitting. Regulates dephosphorylation and turnover of the PSII reaction center D1 protein.2 Publications

GO - Molecular functioni

  • calcium ion binding Source: InterPro
  • poly(U) RNA binding Source: TAIR

GO - Biological processi

  • photoinhibition Source: TAIR
  • photosynthesis, light reaction Source: TAIR
  • photosystem II assembly Source: TAIR
  • photosystem II stabilization Source: TAIR
  • regulation of protein dephosphorylation Source: TAIR
Complete GO annotation...

Keywords - Biological processi

Photosynthesis

Keywords - Ligandi

Manganese

Names & Taxonomyi

Protein namesi
Recommended name:
Oxygen-evolving enhancer protein 1-2, chloroplastic
Short name:
OEE1
Alternative name(s):
33 kDa subunit of oxygen evolving system of photosystem II
33 kDa thylakoid membrane protein
Manganese-stabilizing protein 2
Short name:
MSP-2
OEC 33 kDa subunit
Gene namesi
Name:PSBO2
Ordered Locus Names:At3g50820
ORF Names:F18B3.100
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 3

Organism-specific databases

TAIRiAT3G50820.

Subcellular locationi

GO - Cellular componenti

  • chloroplast Source: TAIR
  • chloroplast stroma Source: TAIR
  • chloroplast thylakoid Source: TAIR
  • chloroplast thylakoid membrane Source: TAIR
  • extrinsic component of membrane Source: InterPro
  • integral component of membrane Source: InterPro
  • photosystem II oxygen evolving complex Source: InterPro
  • plastoglobule Source: TAIR
  • thylakoid Source: TAIR
  • thylakoid lumen Source: TAIR
Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Photosystem II, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 57ChloroplastBy similarityAdd BLAST57
Transit peptidei58 – 84Thylakoid2 PublicationsAdd BLAST27
ChainiPRO_000002955485 – 331Oxygen-evolving enhancer protein 1-2, chloroplasticAdd BLAST247

Proteomic databases

PaxDbiQ9S841.
PRIDEiQ9S841.

2D gel databases

SWISS-2DPAGEQ9S841.

PTM databases

iPTMnetiQ9S841.

Expressioni

Gene expression databases

GenevisibleiQ9S841. AT.

Interactioni

Binary interactionsi

WithEntry#Exp.IntActNotes
trxAP0AA252EBI-449424,EBI-368542From a different organism.

Protein-protein interaction databases

BioGridi9564. 2 interactors.
IntActiQ9S841. 3 interactors.
STRINGi3702.AT3G50820.1.

Structurei

3D structure databases

ProteinModelPortaliQ9S841.
SMRiQ9S841.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PsbO family.Curated

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiENOG410IGC8. Eukaryota.
ENOG410XP4G. LUCA.
HOGENOMiHOG000232492.
InParanoidiQ9S841.
KOiK02716.
OMAiFQPITVL.
OrthoDBiEOG09360EXY.
PhylomeDBiQ9S841.

Family and domain databases

InterProiIPR011250. OMP/PagP_b-brl.
IPR002628. PSII_MSP.
[Graphical view]
PfamiPF01716. MSP. 1 hit.
[Graphical view]
SUPFAMiSSF56925. SSF56925. 1 hit.

Sequencei

Sequence statusi: Complete.

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

Q9S841-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MATSLQAAAT FLQPAKIAAS PSRNVHLRSN QTVGKSFGLD SSQARLTCSL
60 70 80 90 100
HSDLKDFAGK CSDAAKIAGF ALATSALVVS GAGAEGAPKR LTYDEIQSKT
110 120 130 140 150
YMEVKGTGTA NQCPTIDGGS ETFSFKAGKY TGKKFCFEPT SFTVKADSVS
160 170 180 190 200
KNAPPDFQNT KLMTRLTYTL DEIEGPFEVG SDGSVKFKEE DGIDYAAVTV
210 220 230 240 250
QLPGGERVPF LFTVKQLEAS GKPESFSGKF LVPSYRGSSF LDPKGRGGST
260 270 280 290 300
GYDNAVALPA GGRGDEEELS KENVKNTAAS VGEITLKITK SKPETGEVIG
310 320 330
VFESLQPSDT DLGAKVPKDV KIQGVWYGQI E
Length:331
Mass (Da):35,019
Last modified:May 1, 2000 - v1
Checksum:i08F837E651B1C2E7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ145957 mRNA. Translation: CAB53092.1.
AL049862 Genomic DNA. Translation: CAB42911.1.
CP002686 Genomic DNA. Translation: AEE78714.1.
AY050362 mRNA. Translation: AAK91379.1.
AY116934 mRNA. Translation: AAM51568.1.
AY088799 mRNA. Translation: AAM67110.1.
PIRiT08403.
RefSeqiNP_190651.1. NM_114942.3.
UniGeneiAt.21117.

Genome annotation databases

EnsemblPlantsiAT3G50820.1; AT3G50820.1; AT3G50820.
GeneIDi824246.
GrameneiAT3G50820.1; AT3G50820.1; AT3G50820.
KEGGiath:AT3G50820.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ145957 mRNA. Translation: CAB53092.1.
AL049862 Genomic DNA. Translation: CAB42911.1.
CP002686 Genomic DNA. Translation: AEE78714.1.
AY050362 mRNA. Translation: AAK91379.1.
AY116934 mRNA. Translation: AAM51568.1.
AY088799 mRNA. Translation: AAM67110.1.
PIRiT08403.
RefSeqiNP_190651.1. NM_114942.3.
UniGeneiAt.21117.

3D structure databases

ProteinModelPortaliQ9S841.
SMRiQ9S841.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi9564. 2 interactors.
IntActiQ9S841. 3 interactors.
STRINGi3702.AT3G50820.1.

PTM databases

iPTMnetiQ9S841.

2D gel databases

SWISS-2DPAGEQ9S841.

Proteomic databases

PaxDbiQ9S841.
PRIDEiQ9S841.

Protocols and materials databases

DNASUi824246.
Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT3G50820.1; AT3G50820.1; AT3G50820.
GeneIDi824246.
GrameneiAT3G50820.1; AT3G50820.1; AT3G50820.
KEGGiath:AT3G50820.

Organism-specific databases

TAIRiAT3G50820.

Phylogenomic databases

eggNOGiENOG410IGC8. Eukaryota.
ENOG410XP4G. LUCA.
HOGENOMiHOG000232492.
InParanoidiQ9S841.
KOiK02716.
OMAiFQPITVL.
OrthoDBiEOG09360EXY.
PhylomeDBiQ9S841.

Miscellaneous databases

PROiQ9S841.

Gene expression databases

GenevisibleiQ9S841. AT.

Family and domain databases

InterProiIPR011250. OMP/PagP_b-brl.
IPR002628. PSII_MSP.
[Graphical view]
PfamiPF01716. MSP. 1 hit.
[Graphical view]
SUPFAMiSSF56925. SSF56925. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPSBO2_ARATH
AccessioniPrimary (citable) accession number: Q9S841
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: May 1, 2000
Last modified: November 30, 2016
This is version 111 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  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.