Phytochrome signaling pathway to turn on photomorphogenesis (Arabidopsis thaliana)

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1FunctionStability?CUL4PhotomorphogenesisHFR1PHYACOP10DET1HY5COP1CSNPIF1SPADDB1LAF1HMRCUL4DDB1PHYBPHYCPHYEPHYDPIF3PIF4PIF5PIF6PIF7HMR


Description

The pathways activated by phytochromes in Arbabidopsis thaliana de-repress transcription regulators important for photomorphogenesis induction by inhibiting COP1, DET1, and CSN directly and indirectly through HMR. The inhibition represses function of Cul4 ubiquitin ligases. However, HMR is also involved in degradation Phytochrome A in the same pathway. Phytochromes further degrade PIFs in another pathway through HMR activation to inhibit repression of photomorphogenesis. Interaction of both pathways has been proposed through inhibition of HFR1 by COP1/DET1 to increase protein stability of PIFs. This pathway is based on figure 3 from Chen et al.

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Bibliography

  1. Chen M, Chory J; ''Phytochrome signaling mechanisms and the control of plant development.''; Trends Cell Biol, 2011 PubMed Europe PMC Scholia

History

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CompareRevisionActionTimeUserComment
116429view09:27, 7 May 2021EweitzModified title
90097view17:18, 13 October 2016Khanspersupdated xrefs and layout
88554view01:50, 11 August 2016AAR&CoFixed Interactions and Added Pathway
88322view15:42, 1 August 2016FehrhartOntology Term : 'photosignal transduction pathway' added !
85931view18:28, 21 June 2016AAR&CoModified description
85849view15:22, 17 June 2016AAR&CoEdit Interactions
85848view15:21, 17 June 2016AAR&CoModified description
85847view15:17, 17 June 2016AAR&CoModified description
85846view15:11, 17 June 2016AAR&CoEditing Interactions
85845view15:10, 17 June 2016AAR&CoModified description
85844view15:06, 17 June 2016AAR&CoModified description
85843view15:04, 17 June 2016AAR&CoEditing Interactions
85842view15:01, 17 June 2016AAR&CoEdited Interactions
85841view14:55, 17 June 2016AAR&CoModified title
85840view14:55, 17 June 2016AAR&CoNew pathway

External references

DataNodes

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NameTypeDatabase referenceComment
COP10GeneProductAT3G13550 (Ensembl)
COP1GeneProductAT2G32950 (Ensembl)
CSNGeneProductAT3G61140 (Ensembl) CSN Not Specified
CUL4GeneProductAT5G46210 (Ensembl)
DDB1GeneProductAT4G05420 (Ensembl) DDB1 Not Specified
DET1GeneProductAT4G10180 (Ensembl)
HFR1GeneProductAT1G02340 (Ensembl)
HMRGeneProductAT2G34640 (Ensembl)
HY5GeneProductAT5G11260 (Ensembl)
LAF1GeneProductAT4G25560 (Ensembl)
PHYAGeneProductAT1G09570 (Ensembl)
PHYBGeneProductAT2G18790 (Ensembl)
PHYCGeneProductAT5G35840 (Ensembl)
PHYDGeneProductAT4G16250 (Ensembl)
PHYEGeneProductAT4G18130 (Ensembl)
PIF1GeneProductAT2G20180 (Ensembl) PIF Not Specified
PIF3GeneProductAT1G09530 (Ensembl) PIF Not Specified
PIF4GeneProductAT2G43010 (Ensembl) PIF Not Specified
PIF5GeneProductAT3G59060 (Ensembl) PIF Not Specified
PIF6GeneProductAT3G62090 (Ensembl) PIF Not Specified
PIF7ProteinQ570R7 (Uniprot-TrEMBL) PIF Not Specified
PhotomorphogenesisPathwaymap04712 (KEGG Pathway)
SPAGeneProductAT2G46340 (Ensembl) SPA Not Specified

Annotated Interactions

No annotated interactions

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