Gene: AT2G46340 (Arabidopsis thaliana)

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Gene Identifier
AT2G46340
Transcript Identifier
AT2G46340.1
Gene Type
Coding gene
Location
Chr2 : 19022572-19026821 : negative

Family

Gene family
HOM04M000692
(187 genes in 29 species)
specific family
Subfamily
ORTHO04M000791
(143 genes in 29 species)
specific family
Duplication type
Block duplicate

Descriptions

Description
SPA (suppressor of phyA-105) protein family
Curated Summary
Encodes a member of the SPA (suppressor of phyA-105) protein family (SPA1-SPA4). SPA proteins contain an N-terminal serine/threonine kinase-like motif followed by a coiled-coil structure and a C-terminal WD-repeat domain. SPA1 is a PHYA signaling intermediate, putative regulator of PHYA signaling pathway. Light responsive repressor of photomorphogenesis. Involved in regulating circadian rhythms and flowering time in plants. Under constant light, the abundance of SPA1 protein exhibited circadian regulation, whereas under constant darkness, SPA1 protein levels remained unchanged. In addition, the spa1-3 mutation slightly shortened circadian period of CCA1, TOC1/PRR1 and SPA1 transcript accumulation under constant light.
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Identifiers

Type Value
full_nameSUPPRESSOR OF PHYA-105 1
symbolSPA1
tidAT2G46340.1
UniProtQ9SYX2

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Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0006468 IEAGene Ontologyprotein phosphorylation1
GO:0009585 IEA, IGI, UniProtred, far-red light phototransduction1 2
GO:0009640 IMPUniProtphotomorphogenesis1
GO:0048575 IMPUniProtshort-day photoperiodism, flowering1
GO:0010100 IMPUniProtnegative regulation of photomorphogenesis1
GO:2000028 IDA, IMP, UniProtregulation of photoperiodism, flowering1 2 3
GO:0010017 IMPUniProtred or far-red light signaling pathway1
GO:0010114 IEPUniProtresponse to red light1
GO:0010218 IEPUniProtresponse to far red light1
GO:0009637 IDA, IMP, UniProtresponse to blue light1 2 3 4
GO:0009658 IMPUniProtchloroplast organization1

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0005515 IPI, IEAGene Ontologyprotein binding1
GO:0004672 IEAUniProtprotein kinase activity1
GO:0005524 IEAUniProtATP binding1
GO:0004871 ISSGene Ontologysignal transducer activity1
GO:0042802 IPIUniProtidentical protein binding1

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0005634 IDA, ISM, UniProtnucleus1 2
GO:0005834 ISSGene Ontologyheterotrimeric G-protein complex1
GO:0016605 IEAUniProtPML body1
GO:0016607 IEAUniProtnuclear speck1
GO:0080008 ISSUniProtCul4-RING E3 ubiquitin ligase complex1
GO:0016604 IDAUniProtnuclear body1 2

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Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR015943WD40/YVTN repeat-like-containing domain
IPR000719Protein kinase domain
IPR001680WD40 repeat
IPR020472G-protein beta WD-40 repeat
IPR019775WD40 repeat, conserved site
IPR017986WD40-repeat-containing domain
IPR011009Protein kinase-like domain

Mapman id Description
18.4.16.Protein modification.phosphorylation.protein kinase (PEK)
19.2.2.8.3.4.2.Protein homeostasis.ubiquitin-proteasome system.ubiquitin-fold protein conjugation.Cullin-based ubiquitylation complexes.CUL4-DDB1 ubiquitination complexes.COP1-SPA substrate adaptor subcomplex.regulator component SPA
26.1.1.3.3.2.External stimuli response.light.red/far red light.CUL4-DDB1 ubiquitination complex.COP1-SPA substrate adaptor subcomplex.regulator component SPA
No SignalP domains detected for this gene.