GO Term : GO:0019684 photosynthesis, light reaction GO

Namespace  biological_process Obsolete  false
description  The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.

0 Cross References

1 Ontology

Name
GO

7 Parents

Identifier Name Description
GO:0008152 metabolic process The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
GO:0015979 photosynthesis The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
GO:0044237 cellular metabolic process The chemical reactions and pathways by which individual cells transform chemical substances.
GO:0019684 photosynthesis, light reaction The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
GO:0009987 cellular process Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level.
GO:0008150 biological_process Any process specifically pertinent to the functioning of integrated living units: cells, tissues, organs, and organisms. A process is a collection of molecular events with a defined beginning and end.
GO:0006091 generation of precursor metabolites and energy The chemical reactions and pathways resulting in the formation of precursor metabolites, substances from which energy is derived, and any process involved in the liberation of energy from these substances.

10 Protein

Protein Identifier
Organism . Name
Score Score Type Protein Description Alias (in v1) Code Enzyme Gene Prediction Quality
Qrob_P0141080.2 Quercus robur 0.0 egn (M=2) K02706 - photosystem II P680 reaction center D2 protein   EC:1.10.3.9 validated
Qrob_P0238530.2 Quercus robur 0.0 egn (M=2) K02703 - photosystem II P680 reaction center D1 protein   EC:1.10.3.9 validated
Qrob_P0253790.2 Quercus robur 6.2 egn (M=1) KOG0192//KOG0194//KOG0197//KOG0198//KOG0578//KOG0581//KOG0661//KOG1095//KOG1187//KOG3653 - Tyrosine kinase specific for activated (GTP-bound) p21cdc42Hs [Signal transduction mechanisms]. // Protein tyrosine kinase [Signal transduction mechanisms]. // Tyrosine kinases [Signal transduction mechanisms]. // MEKK and related serine/threonine protein kinases [Signal transduction mechanisms]. // p21-activated serine/threonine protein kinase [Signal transduction mechanisms]. // Mitogen-activated protein kinase kinase (MAP2K) [Signal transduction mechanisms]. // MAPK related serine/threonine protein kinase [Signal transduction mechanisms]. // Protein tyrosine kinase [Signal transduction mechanisms]. // Serine/threonine protein kinase [Signal transduction mechanisms]. // Transforming growth factor beta/activin receptor subfamily of serine/threonine kinases [Signal transduction mechanisms].   EC:2.7.11.1 validated
Qrob_P0269980.2 Quercus robur 43.1 egn (M=2) K02706 - photosystem II P680 reaction center D2 protein   EC:1.10.3.9 validated
Qrob_P0269990.2 Quercus robur 100.0 egn (M=2) K02705 - photosystem II CP43 chlorophyll apoprotein     validated
Qrob_P0270120.2 Quercus robur 29.3 egn (M=1) K02704 - photosystem II CP47 chlorophyll apoprotein     validated
Qrob_P0358860.2 Quercus robur 100.0 egn (M=2) K02703 - photosystem II P680 reaction center D1 protein   EC:1.10.3.9 validated
Qrob_P0433460.2 Quercus robur 100.0 egn (M=1) K02707 - photosystem II cytochrome b559 subunit alpha     validated
Qrob_P0550610.2 Quercus robur 92.2 egn (M=2) K02705 - photosystem II CP43 chlorophyll apoprotein     validated
Qrob_P0637110.2 Quercus robur 100.0 egn (M=6) PF00421 - Photosystem II protein     validated

34 Relations

Relationship
Parent Term . Identifier

Child Term . Identifier
part of GO:0019684 GO:0009765
part of GO:0019684 GO:0009766
part of GO:0019684 GO:0009767
part of GO:0019684 GO:0009768
part of GO:0019684 GO:0009769
part of GO:0019684 GO:0009770
part of GO:0019684 GO:0009771
part of GO:0019684 GO:0009772
part of GO:0019684 GO:0009773
part of GO:0019684 GO:0009777
part of GO:0019684 GO:0009778
part of GO:0019684 GO:0009779
part of GO:0019684 GO:0009780
regulates GO:0019684 GO:0010205
negatively regulates GO:0019684 GO:0010205
part of GO:0019684 GO:0010206
part of GO:0019684 GO:0010207
part of GO:0019684 GO:0010270
part of GO:0015979 GO:0019684
is_a GO:0006091 GO:0019684
is_a GO:0044237 GO:0019684
is_a GO:0008150 GO:0019684
part of GO:0008150 GO:0019684
part of GO:0008152 GO:0019684
part of GO:0044237 GO:0019684
is_a GO:0008152 GO:0019684
is_a GO:0009987 GO:0019684
part of GO:0009987 GO:0019684
regulates GO:0019684 GO:0042548
regulates GO:0019684 GO:0042549

1 Synonyms

Name Type
photolysis synonym