Overexpression of the KCTD13 gene in zebrafish resulted in induction of the microcephaly phenotype associated with 16p11.2 duplications, whereas suppression of KCTD13 expression resulted in the macrocephaly phenotype associated with 16p11.2 deletions (Golzio et al., 2012). An autistic proband with a de novo deletion including exons 3-5 of the KCTD13 gene was also identified in this report.
Molecular Function
Substrate-specific adapter of a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex required for synaptic transmission (PMID 19782033). The BCR(KCTD13) E3 ubiquitin ligase complex mediates the ubiquitination of RHOA, leading to its degradation by the proteasome (PMID 19782033) Degradation of RHOA regulates the actin cytoskeleton and promotes synaptic transmission.
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References
Type
Title
Type of Disorder
Associated Disorders
Author, Year
Primary
KCTD13 is a major driver of mirrored neuroanatomical phenotypes of the 16p11.2 copy number variant.
Model Type:
Genetic
Model Genotype:
Heterozygous
Mutation:
One allele of Kctd13 was replaced entirely from the second reading frame to seventeenth base pair after stop codon of the gene, (total 16,080 bp).with a lacz-neo cassette. The neo positive selection marker was deleted using a germline Cre driver.
Allele Type: Knockout
Strain of Origin: C57BL/6NTac*c57BL/6*B6.C-Tg(CMV-Cre),Cgn/J
Genetic Background: ES Cell Line: Mutant ES Cell Line: VGB6
Model Source: Knockout Mouse Project (KOMP) Repository, University of California, Davis (PMID 29088697)
Model Type:
Genetic
Model Genotype:
Homozygous
Mutation:
Both alleles of Kctd13 were replaced entirely from the second reading frame to seventeenth base pair after stop codon of the gene, (total 16,080 bp).with a lacz-neo cassette. The neo positive selection marker was deleted using a germline Cre driver.
Allele Type: Knockout
Strain of Origin: C57BL/6NTac*c57BL/6*B6.C-Tg(CMV-Cre),Cgn/J
Genetic Background: ES Cell Line: Mutant ES Cell Line: VGB6
Model Source: Knockout Mouse Project (KOMP) Repository, University of California, Davis (PMID 29088697)
Model Type:
Genetic
Model Genotype:
Heterozygous
Mutation:
Kctd13 heterozygous mutants with deletion of exon 2 predicted to introduce a premature stop codon in exon 4 using CMV-Cre expressed ubiquitously.
Allele Type: Knockout
Strain of Origin: C57BL/6N
Genetic Background: C57BL/6N*B6.C-Tg(CMV-cre)1Cgn/J*C57BL/6J
ES Cell Line: G4 ES cells
Mutant ES Cell Line: G4 ES cells
Model Source: PMID 30590535; Jackson Laboratory
Model Type:
Genetic
Model Genotype:
Homozygous
Mutation:
Kctd13 homozygous mutants with deletion of exon 2 predicted to introduce a premature stop codon in exon 4 using CMV-Cre expressed ubiquitously.
Allele Type: Knockout
Strain of Origin: C57BL/6N
Genetic Background: C57BL/6N*B6.C-Tg(CMV-cre)1Cgn/J*C57BL/6J
ES Cell Line: G4 ES cells
Mutant ES Cell Line: G4 ES cells
Model Source: PMID 30590535; Jackson Laboratory
Model Type:
Genetic
Model Genotype:
Multifactorial
Mutation:
Mice with double heterozygous for deletion of Kctd13 and Mvp. Kctd13 heterozygous mutants with deletion of exon 2 predicted to introduce a premature stop codon in exon 4 using CMV-Cre expressed ubiquitously. Mvp heterozygous mutant mice were provided by Dr. Binnaz Yalcin, PMID 28965845. Construct details of Mvp allele are not specified.
Allele Type: Knockout
Strain of Origin: C57BL/6N
Genetic Background: C57BL/6N*B6.C-Tg(CMV-cre)1Cgn/J*C57BL/6J
ES Cell Line: G4 ES cells
Mutant ES Cell Line: G4 ES cells
Model Source: PMID 30590535; Jackson Laboratory
Model Type:
Genetic
Model Genotype:
Multifactorial
Mutation:
Mice double heterozygous for deletion of Kctd13 and Lat. Kctd13 heterozygous mutants with deletion of exon 2 predicted to introduce a premature stop codon in exon 4 using CMV-Cre expressed ubiquitously. Lat heterozygous mutant mice were generated by deletion of exons 1-8 encoding amino acids 1-169 of the mouse LAT (PMID 10204488, Dr. Weiguo Zhang).
Allele Type: Knockout
Strain of Origin: C57BL/6N
Genetic Background: C57BL/6N*B6.C-Tg(CMV-cre)1Cgn/J*C57BL/6J
ES Cell Line: G4 ES cells
Mutant ES Cell Line: G4 ES cells
Model Source: PMID 30590535; Jackson Laboratory
Description: Mutants show reduction of fepsp slope in extracellular recordings of field excitatory postsynaptic potentials (fepsps), compared to controls.
Exp Paradigm: NA
Description: Mutants show increased rhoa protein levels compared to controls. mutants show increased rhoa protein levels compared to controls, after p7, as per a developmental timecourse study.
Exp Paradigm: NA
Description: Mutants show reduction of fepsp slope in extracellular recordings of field excitatory postsynaptic potentials (fepsps), compared to controls.
Exp Paradigm: NA
Description: Mutants show complete loss of kctd13 protein in various brain regions compared to controls. mutants show complete loss of kctd13 transcript in various brain regions compared to controls. mutants show kctd13 promoter activity in neurons throughout the brain substantiated by lacz staining.
Exp Paradigm: Western blot
Description: Mutants show complete loss of kctd13 protein in various brain regions compared to controls. mutants show complete loss of kctd13 transcript in various brain regions compared to controls. mutants show kctd13 promoter activity in neurons throughout the brain substantiated by lacz staining.
Exp Paradigm: Quantitative pcr (qrt-pcr)
Description: Mutants show complete loss of kctd13 protein in various brain regions compared to controls. mutants show complete loss of kctd13 transcript in various brain regions compared to controls. mutants show kctd13 promoter activity in neurons throughout the brain substantiated by lacz staining.
Exp Paradigm: Immunohistochemistry
Description: Mutants show a decrease in branched spines in the basal dendrites of pyramidal neurons in the dorsal ca1 region of the hippocampus compared with controls but no change in branched spines in the retro spinal cortex.
Exp Paradigm: NA
Description: Mutants show a decrease in the density of mature mushroom spines in the basal dendrites of pyramidal neurons in the dorsal ca1 region of the hippocampus compared with controls but no change in spine density in the retro spinal cortex.
Exp Paradigm: NA
Description: Mutants show upregulation of dcnt5 and fam57b, down regulation of mapk3 and dysregulation of pathways important in neurodevelopment including synaptic formation compared with controls in the cortex and hippocampus.
Exp Paradigm: NA
Description: Mutants show a decrease in branched spines in the basal dendrites of pyramidal neurons in the dorsal ca1 region of the hippocampus compared with controls but no change in branched spines in the retro spinal cortex.
Exp Paradigm: Retrosplenial cortex; hippocampus ca1 region
Description: Mutants show a decrease in the density of mature mushroom spines in the basal dendrites of pyramidal neurons in the dorsal ca1 region of the hippocampus compared with controls but no change in spine density in the retrosplenial cortex.
Exp Paradigm: Retrosplenial cortex; hippocampus ca1 region
Description: Mutants show upregulation of dcnt5 and fam57b, down regulation of mapk3 and dysregulation of pathways important in neurodevelopment including synaptic formation compared with controls in the cortex and hippocampus.
Exp Paradigm: NA