PSBO1 PS II oxygen-evolving complex 1 [Arabidopsis thaliana (thale cress)] - Gene

Summary

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Official Symbol: PSBO1
Official Full Name: PS II oxygen-evolving complex 1
Primary source: TAIR:AT5G66570
Locus tag: AT5G66570
See related: Araport:AT5G66570
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Arabidopsis thaliana (ecotype: Columbia)
Lineage: Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae; rosids; malvids; Brassicales; Brassicaceae; Camelineae; Arabidopsis
Also known as: 33 KDA OXYGEN EVOLVING POLYPEPTIDE 1; K1F13.25; K1F13_25; MANGANESE-STABILIZING PROTEIN 1; MSP-1; OE33; OEC33; OEE1; OEE33; OXYGEN EVOLVING COMPLEX 33 KILODALTON PROTEIN; OXYGEN EVOLVING COMPLEX SUBUNIT 33 KDA; OXYGEN EVOLVING ENHANCER PROTEIN 33; PS II oxygen-evolving complex 1; PS II OXYGEN-EVOLVING COMPLEX 1; PSBO; PSBO-1
Summary: Encodes a protein which is an extrinsic subunit of photosystem II and which has been proposed to play a central role in stabilization of the catalytic manganese cluster. In Arabidopsis thaliana the PsbO proteins are encoded by two genes: psbO1 and psbO2. PsbO1 is the major isoform in the wild-type. In plsp1-1 mutant plastids, the nonmature form of the protein localizes in the membrane.
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Genomic context

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See PSBO1 in Genome Data Viewer

Location:: chromosome: 5

Exon count:: 3

Sequence:: Chromosome: 5; NC_003076.8 (26568572..26570461)

Chromosome 5 - NC_003076.8 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_003076.8

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

The irradiance response of photosynthetic oxygen evolution showed that low PsbO plants had a reduced quantum yield, but matched the oxygen evolution rates of wildtype plants at saturating irradiance.
Title: Antisense reductions in the PsbO protein of photosystem II leads to decreased quantum yield but similar maximal photosynthetic rates.
The presence of only the PsbO1 isoform in the psbo2 mutant did not induce any significant differences in the performance of PSII under standard growth conditions as compared to wild type.
Title: Comparison of the electron transport properties of the psbo1 and psbo2 mutants of Arabidopsis thaliana.
PsbO2 has a threefold higher GTPase activity than PsbO1.
Title: Towards understanding the functional difference between the two PsbO isoforms in Arabidopsis thaliana--insights from phenotypic analyses of psbo knockout mutants.
Loss of PsbO expression was correlated with the loss of expression of the D1 and CP43 proteins.
Title: The effects of simultaneous RNAi suppression of PsbO and PsbP protein expression in photosystem II of Arabidopsis.
the PsbO-2 protein cannot effectively sequester calcium at the oxygen-evolving site
Title: The psbo1 mutant of Arabidopsis cannot efficiently use calcium in support of oxygen evolution by photosystem II.
A functional analysis of photosystem II in a PSBO-1-deficient mutant was performed.
Title: Functional analysis of photosystem II in a PsbO-1-deficient mutant in Arabidopsis thaliana.
Results characterize the functional differences between PsbO1 and PsbO2, and show that PsbO1 is the major isoform in wild-type plants.
Title: Functional dissection of two Arabidopsis PsbO proteins: PsbO1 and PsbO2.
amount of photosystem II reaction centers was compromised in plants that exhibited low amounts of the manganese-stabilizing proteins
Title: The manganese-stabilizing protein is required for photosystem II assembly/stability and photoautotrophy in higher plants.

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Pathways from PubChem

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

Orthologs from OrthoDB

NM_126055.4

Supported by ESTs:

Gene Ontology Provided by TAIR

Function	Evidence Code	Pubs
enables mRNA binding	IDA Inferred from Direct Assay more info	PubMed
enables oxygen evolving activity	IDA Inferred from Direct Assay more info	PubMed
enables poly(U) RNA binding	IDA Inferred from Direct Assay more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
acts_upstream_of_or_within photoinhibition	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within photosynthesis, light reaction	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within photosystem II assembly	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within photosystem II stabilization	IMP Inferred from Mutant Phenotype more info	PubMed

Component	Evidence Code	Pubs
located_in apoplast	HDA more info	PubMed
located_in chloroplast	HDA more info	PubMed
located_in chloroplast	ISM Inferred from Sequence Model more info
located_in chloroplast stroma	HDA more info	PubMed
located_in chloroplast thylakoid	HDA more info	PubMed
located_in chloroplast thylakoid lumen	HDA more info	PubMed
located_in chloroplast thylakoid lumen	IDA Inferred from Direct Assay more info	PubMed
located_in chloroplast thylakoid membrane	HDA more info	PubMed
part_of photosystem II oxygen evolving complex	ISS Inferred from Sequence or Structural Similarity more info	PubMed
located_in plastid	HDA more info	PubMed
located_in plastid thylakoid membrane	IDA Inferred from Direct Assay more info	PubMed
located_in plastoglobule	HDA more info	PubMed
located_in thylakoid	HDA more info	PubMed
located_in thylakoid	IDA Inferred from Direct Assay more info	PubMed
located_in thylakoid lumen	HDA more info	PubMed

General protein information

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Preferred Names: PS II oxygen-evolving complex 1

NP_201458.1

PS II oxygen-evolving complex 1 (PSBO1); FUNCTIONS IN: oxygen evolving activity, poly(U) RNA binding; INVOLVED IN: in 6 processes; LOCATED IN: in 10 components; EXPRESSED IN: 24 plant structures; EXPRESSED DURING: 15 growth stages; CONTAINS InterPro DOMAIN/s: Photosystem II manganese-stabilising protein PsbO (InterPro:IPR002628); BEST Arabidopsis thaliana protein match is: photosystem II subunit O-2 (TAIR:AT3G50820.1); Has 1807 Blast hits to 1807 proteins in 277 species: Archae - 0; Bacteria - 0; Metazoa - 736; Fungi - 347; Plants - 385; Viruses - 0; Other Eukaryotes - 339 (source: NCBI BLink).