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Protein

Oxygen-evolving enhancer protein 1-1, chloroplastic

Gene

PSBO1

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.2 Publications

Miscellaneous

PSBO1 is the major isoform in the wild-type and it cannot be fully complemented by PSBO2.

GO - Molecular functioni

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

GO - Biological processi

  • defense response to bacterium Source: TAIR
  • photoinhibition Source: TAIR
  • photosynthesis, light reaction Source: TAIR
  • photosystem II assembly Source: TAIR
  • photosystem II stabilization Source: TAIR
  • regulation of protein dephosphorylation Source: TAIR

Keywordsi

Biological processPhotosynthesis
LigandManganese

Enzyme and pathway databases

BioCyciMetaCyc:AT5G66570-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Oxygen-evolving enhancer protein 1-1, 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 1
Short name:
MSP-1
OEC 33 kDa subunit
Gene namesi
Name:PSBO1
Synonyms:PSBO
Ordered Locus Names:At5g66570
ORF Names:K1F13.25
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 5

Organism-specific databases

AraportiAT5G66570.
TAIRilocus:2154940. AT5G66570.

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Chloroplast, Membrane, Photosystem II, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 58Chloroplast1 PublicationAdd BLAST58
Transit peptidei59 – 85ThylakoidAdd BLAST27
ChainiPRO_000002955386 – 332Oxygen-evolving enhancer protein 1-1, chloroplasticAdd BLAST247

Proteomic databases

PaxDbiP23321.
PRIDEiP23321.

2D gel databases

SWISS-2DPAGEiP23321.

PTM databases

iPTMnetiP23321.

Expressioni

Tissue specificityi

Leaves.

Gene expression databases

ExpressionAtlasiP23321. baseline and differential.
GenevisibleiP23321. AT.

Interactioni

Binary interactionsi

WithEntry#Exp.IntActNotes
trxAP0AA252EBI-449414,EBI-368542From Escherichia coli (strain K12).

Protein-protein interaction databases

BioGridi22031. 2 interactors.
IntActiP23321. 7 interactors.
MINTiMINT-2583944.
STRINGi3702.AT5G66570.1.

Structurei

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
5MDXelectron microscopy5.30O/o86-332[»]
ProteinModelPortaliP23321.
SMRiP23321.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PsbO family.Curated

Keywords - Domaini

Transit peptide

Phylogenomic databases

eggNOGiENOG410IGC8. Eukaryota.
ENOG410XP4G. LUCA.
InParanoidiP23321.
KOiK02716.
OMAiLMQPTKL.
OrthoDBiEOG09360EXY.
PhylomeDBiP23321.

Family and domain databases

InterProiView protein in InterPro
IPR011250. OMP/PagP_b-brl.
IPR002628. PSII_MSP.
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.

P23321-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAASLQSTAT FLQSAKIATA PSRGSSHLRS TQAVGKSFGL ETSSARLTCS
60 70 80 90 100
FQSDFKDFTG KCSDAVKIAG FALATSALVV SGASAEGAPK RLTYDEIQSK
110 120 130 140 150
TYMEVKGTGT ANQCPTIDGG SETFSFKPGK YAGKKFCFEP TSFTVKADSV
160 170 180 190 200
SKNAPPEFQN TKLMTRLTYT LDEIEGPFEV ASDGSVNFKE EDGIDYAAVT
210 220 230 240 250
VQLPGGERVP FLFTVKQLDA SGKPDSFTGK FLVPSYRGSS FLDPKGRGGS
260 270 280 290 300
TGYDNAVALP AGGRGDEEEL VKENVKNTAA SVGEITLKVT KSKPETGEVI
310 320 330
GVFESLQPSD TDLGAKVPKD VKIQGVWYGQ LE
Length:332
Mass (Da):35,142
Last modified:December 1, 2000 - v2
Checksum:i73174DDC09C11E5C
GO

Sequence cautioni

The sequence CAA79171 differs from that shown. Reason: Frameshift at positions 130 and 162.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti57D → N in AAN15726 (PubMed:14593172).Curated1
Sequence conflicti57D → N in AAM96957 (PubMed:14593172).Curated1
Sequence conflicti75T → S in AAL08257 (PubMed:14593172).Curated1
Sequence conflicti113 – 114QC → HS in CAA36675 (PubMed:2101691).Curated2
Sequence conflicti132A → S in AAM65169 (Ref. 6) Curated1
Sequence conflicti206G → C in AAK96774 (PubMed:14593172).Curated1
Sequence conflicti278T → S in AAK49614 (PubMed:14593172).Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X52428 mRNA. Translation: CAA36675.1.
Y15433 Genomic DNA. Translation: CAA75629.1.
AB013389 Genomic DNA. Translation: BAB10933.1.
CP002688 Genomic DNA. Translation: AED98230.1.
AF424626 mRNA. Translation: AAL11619.1.
AY052299 mRNA. Translation: AAK96492.1.
AY061924 mRNA. Translation: AAL31251.1.
AF372898 mRNA. Translation: AAK49614.1.
AY136291 mRNA. Translation: AAM96957.1.
AY054583 mRNA. Translation: AAK96774.1.
AY056401 mRNA. Translation: AAL08257.1.
BT000407 mRNA. Translation: AAN15726.1.
AY087630 mRNA. Translation: AAM65169.1.
Z18374 mRNA. Translation: CAA79171.1. Frameshift.
PIRiS11852.
RefSeqiNP_201458.1. NM_126055.4.
UniGeneiAt.25361.
At.48629.
At.72732.

Genome annotation databases

EnsemblPlantsiAT5G66570.1; AT5G66570.1; AT5G66570.
GeneIDi836789.
GrameneiAT5G66570.1; AT5G66570.1; AT5G66570.
KEGGiath:AT5G66570.

Similar proteinsi

Entry informationi

Entry nameiPSBO1_ARATH
AccessioniPrimary (citable) accession number: P23321
Secondary accession number(s): O81917
, Q41998, Q8L7F1, Q8LAT1, Q93Y28, Q93ZP8, Q94JV7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1991
Last sequence update: December 1, 2000
Last modified: August 30, 2017
This is version 136 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

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

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families