Gene Details:

• Gene ID: AT4G24650
• Gene Symbol: ATIPT4, IPT4
• Gene Name: ARABIDOPSIS THALIANA ISOPENTENYLTRANSFERASE 4, isopentenyltransferase 4
• Description: isopentenyltransferase 4;(source:Araport11)
• TAIR Accession: locus:2121979
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT4G24650.1

Plant Ontology Annotations:

• PO:0009089  — endosperm — albumen (exact), endosperma (Spanish, exact), 内胚乳、胚乳 (Japanese, exact)

Gene Ontology:

• GO:0009824  — enables — AMP dimethylallyltransferase activity
• GO:0009691  — acts upstream of or within — cytokinin biosynthetic process
• GO:0005634  — located in — nucleus
• GO:0005515  — enables — protein binding
• GO:0006400  — involved in — tRNA modification
• GO:0005739  — is active in — mitochondrion
• GO:0005829  — located in — cytosol
• GO:0052622  — enables — ATP dimethylallyltransferase activity
• GO:0052623  — enables — ADP dimethylallyltransferase activity
• GO:0009691  — involved in — cytokinin biosynthetic process
• GO:0052381  — enables — tRNA dimethylallyltransferase activity

Germplasm Phenotype:

• atipt1 atipt 3 atipt4 atipt5-1 atipt6 atipt7 atipt8  — Thin, small plants.
• atipt1 atipt 4 atipt 6 atipt 8  — No visible phenotype.
• atipt4 atipt 6 atipt 8  — No visible phenotype.
• atipt4-1  — No visible phenotype.
• atipt4-2  — No visible phenotype.

Function-related keywords:

• endosperm

Literature:

• Identification of plant cytokinin biosynthetic enzymes as dimethylallyl diphosphate:ATP/ADP isopentenyltransferases.   DOI:  10.1093/pcp/pce112 ;  PMID:  11479373
• Monitoring genome-wide changes in gene expression in response to endogenous cytokinin reveals targets in Arabidopsis thaliana.   DOI:  10.1016/s0014-5793(03)01194-3 ;  PMID:  14623097
• Immediate-early and delayed cytokinin response genes of Arabidopsis thaliana identified by genome-wide expression profiling reveal novel cytokinin-sensitive processes and suggest cytokinin action through transcriptional cascades.   DOI:  10.1111/j.1365-313X.2005.02530.x ;  PMID:  16212609
• A transcriptome-based characterization of habituation in plant tissue culture.   DOI:  10.1104/pp.105.076059 ;  PMID:  16489130
• Roles of Arabidopsis ATP/ADP isopentenyltransferases and tRNA isopentenyltransferases in cytokinin biosynthesis.   DOI:  10.1073/pnas.0603522103 ;  PMID:  17062755
• Modulation of the hormone setting by Rhodococcus fascians results in ectopic KNOX activation in Arabidopsis.   DOI:  10.1104/pp.107.113969 ;  PMID:  18184732
• Agrobacterium tumefaciens increases cytokinin production in plastids by modifying the biosynthetic pathway in the host plant.   DOI:  10.1073/pnas.0500793102 ;  PMID:  15998742
• Cytokinin overproduction-caused alteration of flower development is partially mediated by CUC2 and CUC3 in Arabidopsis.   DOI:  10.1016/j.gene.2009.11.003 ;  PMID:  19913077
• Expression of cytokinin biosynthetic isopentenyltransferase genes in Arabidopsis: tissue specificity and regulation by auxin, cytokinin, and nitrate.   DOI:  10.1046/j.1365-313x.2003.01945.x ;  PMID:  14675438

Sequences: