Gene: AT3G07610 (Arabidopsis thaliana)

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Gene Identifier
Transcript Identifier
Gene Type
Coding gene
3 : 2426148-2432876 : positive


Gene family
(280 genes in 30 species)
specific family
(140 genes in 29 species)
specific family

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Transcription factor jumonji (jmjC) domain-containing protein
Curated Summary
IBM1 likely encodes a protein with histone H3mK9 demethylation activity. It may preferentially demethylate H3mK9 at low-copy loci to protect them from silencing by nearby heterochromatin by preventing the spread of cytosine methylation. BONSAI (At1g73177) is hypermethylated in ibm1 mutants. ibm1 mutants have morphological defects that become apparent at the F3 generation, including small narrow leaves, arrested flower development, and faulty pollen development. These phenotypes cannot result solely from the BONSAI hypermethylation. Aberrant phenotypes in ibm1 mutants in both DNA methylation and plant development can be suppressed by mutations in the KYP H3K9 methyltransferase or he CMT3 non CG-cytosine methylase.
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Identifier Name
aliasincrease in bonsai methylation 1





Biological Process

GO termEvidence(s)ProviderDescriptionSource
GO:0009555IMPGene Ontologypollen development1
GO:0009908IMPGene Ontologyflower development1
GO:0032776IGI, IMPGene OntologyDNA methylation on cytosine1 2
GO:0033169IGI, IMPGene Ontologyhistone H3-K9 demethylation1 2
GO:0048366IMPGene Ontologyleaf development1
GO:0006355RCAGene Ontologyregulation of transcription, DNA-dependent1
GO:0006487RCAGene Ontologyprotein N-linked glycosylation1
GO:0010468IMPGene Ontologyregulation of gene expression1
GO:0070919IMPGene Ontologyproduction of siRNA involved in chromatin silencing by small RNA1
GO:0080188IMPGene OntologyRNA-directed DNA methylation1

Molecular Function

GO termEvidence(s)ProviderDescriptionSource
GO:0003700ISSGene Ontologysequence-specific DNA binding transcription factor activity1
GO:0032454IMP, ISSGene Ontologyhistone demethylase activity (H3-K9 specific)1 2
GO:0031490IDAGene Ontologychromatin DNA binding1
GO:0005515IEAInterProprotein binding
GO:0008270IEAPLAZA Homologyzinc ion bindingHOM03D000451

Cellular Component

GO termEvidence(s)ProviderDescriptionSource
GO:0005634ISMGene Ontologynucleus1

Color Legend

Experimental Evidence
Electronic Evidence
Computational Reviewed Evidence
GO Sources:   Primary     Orthology     Homology  
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InterPro Description
IPR003347JmjC domain

Mapman id Description
No SignalP domains detected for this gene.