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Phenotypic and molecular characterisation of CDK13-related congenital heart defects, dysmorphic facial features and intellectual developmental disorders.

Published on Dec 1, 2017in Genome Medicine10.886
· DOI :10.1186/s13073-017-0463-8
Bret L. Bostwick9
Estimated H-index: 9
(BCM: Baylor College of Medicine),
Scott McLean1
Estimated H-index: 1
(BCM: Baylor College of Medicine)
+ 29 AuthorsSeema R. Lalani35
Estimated H-index: 35
(BCM: Baylor College of Medicine)
Abstract
Background De novo missense variants in CDK13 have been described as the cause of syndromic congenital heart defects in seven individuals ascertained from a large congenital cardiovascular malformations cohort. We aimed to further define the phenotypic and molecular spectrum of this newly described disorder.
  • References (10)
  • Citations (10)
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Background Large-scale cohort-based whole exome sequencing of individuals with neurodevelopmental disorders (NDDs) has identified numerous novel candidate disease genes; however, detailed phenotypic information is often lacking in such studies. De novo mutations in pogo transposable element with zinc finger domain (POGZ) have been identified in six independent and diverse cohorts of individuals with NDDs ranging from autism spectrum disorder to developmental delay.
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Cyclin-dependent kinase 9 (CDK9) and CDK12 have each been demonstrated to phosphorylate the RNA polymerase II C-terminal domain (CTD) at serine 2 of the heptad repeat, both in vitro and in vivo. CDK9, as part of P-TEFb and the super elongation complex (SEC), is by far the best characterized of CDK9, CDK12, and CDK13. We employed both in vitro and in vivo assays to further investigate the molecular properties of CDK12 and its paralog CDK13. We isolated Flag-tagged CDK12 and CDK13 and found that t...
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#1Hong-Ru Chen (NYMU: National Yang-Ming University)H-Index: 2
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Cdk12 and Cdk13 are Cdc2-related proteins that share 92% identity in their kinase domains. Using in situ hybridization and Western blot analysis, we detected the expression of Cdk12 and Cdk13 mRNAs and their proteins in developing mouse embryos, especially during development of the nervous system. We explored the roles of Cdk12 and Cdk13 in neuronal differentiation using the P19 neuronal differentiation model. Upon knockdown of Cdk12 or Cdk13, no effect on differentiated cell numbers was detecte...
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Background The molecular history of animal evolution from single-celled ancestors remains a major question in biology, and little is known regarding the evolution of cell cycle regulation during animal emergence. In this study, we conducted a comprehensive evolutionary analysis of CDK and cyclin proteins in metazoans and their unicellular relatives.
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The cyclin-dependent kinases (Cdks) regulate many cellular processes, including the cell cycle, neuronal development, transcription, and posttranscriptional processing. To perform their functions, Cdks bind to specific cyclin subunits to form a functional and active cyclin/Cdk complex. This review is focused on Cyclin K, which was originally considered an alternative subunit of Cdk9, and on its newly identified partners, Cdk12 and Cdk13. We briefly summarize research devoted to each of these pro...
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Abstract Kinases of the CDC2 family play a key role in cell cycle regulation and gene expression. In the present work, we identified sea urchin and human cDNAs encoding homologues of a high molecular mass CDC2-like kinase (designated CDC2L5) sharing respectively a PITAVRE and PITAIRE motif. The human cDNA encodes the full-length amino acid sequence of the Cholinesterase-related cell division controller (CHED) kinase, a previously published partial coding sequence. CDC2L5 overexpressed in mammali...
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Abstract Mutations in CDK13 have recently been identified as a novel cause of syndromic intellectual disability. In this chapter, we review the 44 cases of CDK13-related disorder reported to date, highlighting key clinical pointers to this diagnosis including characteristic craniofacial features, feeding difficulties in infancy, and the presence of structural heart or brain malformations. The spectrum of reported mutations is also described, demonstrating an excess of missense mutations arising ...
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