This term is obsolete.

GO:0019684 JSON

photosynthesis, light reaction

Biological Process

Definition (GO:0019684 GONUTS page)

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. PMID:15746074

414,751 annotations

Synonyms

Synonyms are alternative words or phrases closely related in meaning to the term name, with indication of the relationship between the name and synonym given by the synonym scope.

Synonym Type
photolysis related

Ancestor Chart

Ancestor chart for GO:0019684
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Ancestor chart

Child Terms

This table lists all terms that are direct descendants (child terms) of GO:0019684

Child Term Relationship to
GO:0019684
photosynthetic electron transport chain
part_of
photosynthesis, light harvesting
part_of
photosynthetic phosphorylation
part_of
photosystem I assembly
part_of
photosystem II assembly
part_of
regulation of photosynthesis, light reaction
regulates
negative regulation of photosynthesis, light reaction
negatively_regulates
photosynthetic NADP+ reduction
part_of

Taxon Constraints

The use of this term should conform to the following taxon constraints:

Ancestor GO ID Ancestor GO Term Name Relationship Taxon ID Taxon Reference(s)
GO:0019684 photosynthesis, light reaction Never in Taxon 33208 Metazoa
GO:0019684 photosynthesis, light reaction Never in Taxon 4895 Schizosaccharomyces

More information on taxon constraints in GO is available here

Annotation Blacklist

This list aims to correct incorrect annotations to UniProtKB accessions inferred from electronic annotation (IEA) methods that are supplied by the UniProt-GOA project to the GO Consortium:

Category Entity Type Entity ID Taxon ID Entity Name Ancestor GO ID Reason Rule/Method ID
NOT-qualified manual protein Q9SVV6 3702 KCO6_ARATH GO:0015979 1 NOT-qualified manual annotation exists with evidence code ECO:0000315 from this reference: PMID:31053658
UniProt COMMENT_CAUTION protein B0YPL7 280810 PETN_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPM6 280810 PSB30_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPM8 280810 PSBI_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPN1 280810 PSBA_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPN8 280810 RBL_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPP4 280810 PSBL_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPP7 280810 PETG_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPP8 280810 PSAJ_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain
UniProt COMMENT_CAUTION protein B0YPQ4 280810 PSBN_ANEMR GO:0015979 This organism being non-photosynthetic, the role of this protein is uncertain

Cross-references

Database ID Description
InterPro IPR000066 Antenna complex, alpha/beta subunit
InterPro IPR000484 Photosynthetic reaction centre, L/M
InterPro IPR000932 Photosystem antenna protein-like
InterPro IPR002361 Antenna complex, alpha subunit conserved site
InterPro IPR002362 Light-harvesting protein B beta chain
InterPro IPR003158 Photosynthetic reaction centre, cytochrome c subunit
InterPro IPR005652 Photosynthetic reaction centre, H subunit
InterPro IPR005781 Photosynthetic reaction centre, M subunit
InterPro IPR005868 Photosystem II D2
InterPro IPR005871 Photosynthetic reaction centre, L subunit

Co-occurring Terms

These tables show the number of times the term listed in the table has been co-annotated.

No co-occurrence statistics for GO:0019684 based on ALL annotations
The top 100 of 398 co-occurring terms
Co-occurring Term PR S% #Together #Compared
photosynthesis, light reaction
835.41 100.00 233,344 233,344
electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity
713.43 38.78 96,911 113,481
photosynthetic electron transport in photosystem II
833.51 35.69 83,352 83,542
photosystem II
360.59 30.75 120,572 279,342
chlorophyll binding
533.09 29.58 82,934 129,966
chloroplast thylakoid membrane
226.53 25.09 179,830 663,181
thylakoid
209.58 23.66 188,180 750,100
oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor
307.58 20.61 74,421 202,137
photosynthesis
148.25 15.66 133,211 750,658
photosynthetic electron transport chain
541.43 13.16 33,075 51,034
Totals 2571725 181247805
No co-occurrence statistics for GO:0019684 based on MANUAL annotations
The top 36 of 36 co-occurring terms
Co-occurring Term PR S% #Together #Compared
photosynthesis, light reaction
161,474.88 100.00 8 8
photosystem II oxygen evolving complex
121,106.16 33.33 3 4
oxygen evolving activity
161,474.88 25.00 2 2
chloroplast photosystem II
161,474.88 12.50 1 1
photoinhibition
29,359.07 11.76 2 11
nitrite reductase complex [NAD(P)H]
32,294.98 8.33 1 5
regulation of photosynthesis, light reaction
17,941.65 6.25 1 9
plastid thylakoid membrane
17,941.65 6.25 1 9
chloroplast stromal thylakoid
14,679.53 5.56 1 11
thylakoid lumen
8,650.44 4.92 3 56
Totals 77 251008

Change Log

Timestamp Action Category Detail
2023-11-01 Added CONSTRAINT never_in_taxon NCBITaxon:4895 (Schizosaccharomyces)
2023-11-01 Added CONSTRAINT never_in_taxon NCBITaxon:33208 (Metazoa)
2010-05-05 Deleted SYNONYM photolysis
2010-05-05 Added SYNONYM photolysis
2009-05-21 Deleted XREF MetaCyc:PHOTOSYN-PWY
2009-03-29 Added XREF Wikipedia:Photolysis#Photolysis_in_photosynthesis
2008-05-13 Added DEFINITION 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.
2008-05-12 Deleted DEFINITION 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.
2008-04-01 Updated RELATION is a GO:0006091 (generation of precursor metabolites and energy)
2008-04-01 Updated RELATION part of GO:0015979 (photosynthesis)
Timestamp Action Category Detail
2002-06-26 Updated TERM photosynthesis, light reaction
2001-10-22 Added TERM photosynthesis, light reactions
Timestamp Action Category Detail
2010-05-05 Deleted SYNONYM photolysis
2010-05-05 Added SYNONYM photolysis
2008-05-13 Added DEFINITION 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.
2008-05-12 Deleted DEFINITION 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.
2007-08-09 Deleted SYNONYM photolysis
2007-08-09 Added SYNONYM photolysis
2004-12-16 Added DEFINITION 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.
2004-12-16 Added SYNONYM photolysis
Timestamp Action Category Detail
2008-04-01 Updated RELATION is a GO:0006091 (generation of precursor metabolites and energy)
2008-04-01 Updated RELATION part of GO:0015979 (photosynthesis)
Timestamp Action Category Detail
2009-05-21 Deleted XREF MetaCyc:PHOTOSYN-PWY
2009-03-29 Added XREF Wikipedia:Photolysis#Photolysis_in_photosynthesis
2003-10-27 Added XREF MetaCyc:PHOTOSYN-PWY
2003-10-27 Added XREF MetaCyc:PWY-101
Timestamp Action Category Detail
2023-11-01 Added CONSTRAINT never_in_taxon NCBITaxon:4895 (Schizosaccharomyces)
2023-11-01 Added CONSTRAINT never_in_taxon NCBITaxon:33208 (Metazoa)
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