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Field | Value |
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Namespace | Molecular function |
Short description | Oxygen evolving activity |
Full defintion | Catalysis of the reaction: 2 H2O = O2 + 4 H+ + 4 e-. The evolution of oxygen from oxidizing water is carried out by the oxygen evolving complex in photosystem II of plants. P680+, the photochemically oxidized reaction-center chlorophyll of PSII, is a strong biological oxidant. The reduction potential of P680+ is more positive than that of water, and thus it can oxidize water to give O2 and H+ ions. The oxygen escapes as a gas while the H+ ions remain in solution inside the thylakoid vesicle. |
Subterm of |
The relationship of GO:0010242 with other GO terms.
Relationship type | GO terms |
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Is a | |
Regulates | n.a. |
Part of | n.a. |
Positively regulates | n.a. |
Negatively regulates | n.a. |
A force layout showing the ancestor tree for GO:0010242, and its immediate children. If you wish to explore the tree dynamically, please use the GO Explorer.
This table contains additional metadata associated with the GO entry's definition field.
Field | Value |
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GOC | syr |
PMID | Reconstitution of the spinach oxygen-evolving complex with recombinant Arabidopsis manganese-stabilizing protein. Plant Mol Biol. 1994 Oct; 26 (1): 117–30.PMID: 7948862 The psbO gene of cyanobacteria, green algae and higher plants encodes the precursor of the 33 kDa manganese-stabilizing protein (MSP), a water-soluble subunit of photosystem II (PSII). Using a pET-T7 cloning/expression system, we have expressed in Escherichia coli a full-length cDNA clone of psbO from Arabidopsis thaliana. Upon induction, high levels of the precursor protein accumulated in cells grown with vigorous aeration. In cells grown under weak aeration, the mature protein accumulated upon induction. In cells grown with moderate aeration, the ratio of precursor to mature MSP decreased as the optical density at induction increased. Both forms of the protein accumulated as inclusion bodies from which the mature protein could be released under mildly denaturing conditions that did not release the precursor. Renatured Arabidopsis MSP was 87% as effective as isolated spinach MSP in restoring O2 evolution activity to MSP-depleted PSII membranes from spinach; however, the heterologous protein binds to spinach PSIIs with about half the affinity of the native protein. We also report a correction to the previously published DNA sequence of Arabidopsis psbO (Ko et al., Plant Mol Biol 14 (1990) 217-227). |
GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .
Transcript | Name | Description | GO terms | GO count |
---|---|---|---|---|
– | Oxygen evolving enhancer protein [Medicago truncatula] gi|357483147|ref|XP_003611860.1| | 4 | ||
– | PREDICTED: oxygen-evolving enhancer protein 1, chloroplastic-like [Glycine max] gi|356559442|ref|XP_003548008.1| | 4 | ||
– | Oxygen-evolving enhancer protein 1; TAIR: AT3G50820.1 photosystem II subunit O-2; Swiss-Prot: sp|P14226|PSBO_PEA Oxygen-evolving enhancer protein 1, chloroplastic; TrEMBL-Plants: tr|I3SU29|I3SU29_LOTJA Uncharacterized protein; Found in the gene: LotjaGi2g1v0396500 | 4 | ||
– | Oxygen-evolving enhancer protein 1; TAIR: AT3G50820.1 photosystem II subunit O-2; Swiss-Prot: sp|P14226|PSBO_PEA Oxygen-evolving enhancer protein 1, chloroplastic; TrEMBL-Plants: tr|I1MNK0|I1MNK0_SOYBN Uncharacterized protein; Found in the gene: LotjaGi4g1v0111900 | 4 | ||
– | Oxygen-evolving enhancer protein 1; TAIR: AT3G50820.1 photosystem II subunit O-2; Swiss-Prot: sp|P14226|PSBO_PEA Oxygen-evolving enhancer protein 1, chloroplastic; TrEMBL-Plants: tr|A0A0L9T5I1|A0A0L9T5I1_PHAAN Uncharacterized protein; Found in the gene: LotjaGi4g1v0112700_LC | 4 | ||
– | Oxygen-evolving enhancer protein 1; TAIR: AT3G50820.1 photosystem II subunit O-2; Swiss-Prot: sp|P14226|PSBO_PEA Oxygen-evolving enhancer protein 1, chloroplastic; TrEMBL-Plants: tr|A0A0L9T5I1|A0A0L9T5I1_PHAAN Uncharacterized protein; Found in the gene: LotjaGi4g1v0112700_LC | 4 | ||
– | Oxygen-evolving enhancer protein 1; TAIR: AT5G66570.1 PS II oxygen-evolving complex 1; Swiss-Prot: sp|P14226|PSBO_PEA Oxygen-evolving enhancer protein 1, chloroplastic; TrEMBL-Plants: tr|C6TKL8|C6TKL8_SOYBN Putative uncharacterized protein; Found in the gene: LotjaGi4g1v0112800_LC | 4 |
A list of co-occurring GO terms within the L. japonicus gene space:
GO term | Namespace | Name | Observations | Saturation (%) |
---|---|---|---|---|
Biological process | Photosystem II stabilization | 1 | 14.29 |