Am J Hum Genet. 2012 Dec 7;91(6):1122-7. doi: 10.1016/j.ajhg.2012.10.013. Epub 2012 Nov 15.

Recurrent de novo mutations in PACS1 cause defective cranial-neural-crest migration and define a recognizable intellectual-disability syndrome.External 2231691f894ba696de1310221b0a0dbbb31a7251e75115c265587c3d9d5f507c

Schuurs-Hoeijmakers, J. H., Oh, E. C., Vissers, L. E., Swinkels, M. E., Gilissen, C., Willemsen, M. A., Holvoet, M., Steehouwer, M., Veltman, J. A., de Vries, B. B., van Bokhoven, H., de Brouwer, A. P., Katsanis, N., Devriendt, K., Brunner, H. G.,
["Department of Human Genetics 855, Nijmegen Centre for Molecular Life Sciences and Institute for Genetic and Metabolic Disease, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, The Netherlands."]
We studied two unrelated boys with intellectual disability (ID) and a striking facial resemblance suggestive of a hitherto unappreciated syndrome. Exome sequencing in both families identified identical de novo mutations in PACS1, suggestive of causality. To support these genetic findings and to understand the pathomechanism of the mutation, we studied the protein in vitro and in vivo. Altered PACS1 forms cytoplasmic aggregates in vitro with concomitant increased protein stability and shows impaired binding to an isoform-specific variant of TRPV4, but not the full-length protein. Furthermore, consistent with the human pathology, expression of mutant PACS1 mRNA in zebrafish embryos induces craniofacial defects most likely in a dominant-negative fashion. This phenotype is driven by aberrant specification and migration of SOX10-positive cranial, but not enteric, neural-crest cells. Our findings suggest that PACS1 is necessary for the formation of craniofacial structures and that perturbation of its functions results in a specific syndromic ID phenotype.
PMID: 23159249External 2231691f894ba696de1310221b0a0dbbb31a7251e75115c265587c3d9d5f507c
Screening Toggle 893349bafcc528f8346c51dc3420151d67b0126b2c122dd1017121c03fa0f69b
  Experimental screening Non-experimental screening Reference
TRP channel construct Interactor source
TRP channel Interactor Method Species Region Species Organ/tissue Sample type
TRPV1 Link 2bd4d11adb659cddf58197a94e201f0a44c55d8d7cb427c624971b42e122c0a4 PACS-1 Inference Prediction 23159249
(Link 2bd4d11adb659cddf58197a94e201f0a44c55d8d7cb427c624971b42e122c0a4: click the arrow icon to show interactions only between the corresponding TRP channel and the interactor)
Validation: In vivo validation Toggle 893349bafcc528f8346c51dc3420151d67b0126b2c122dd1017121c03fa0f69b
  Assay with endogenous proteins Assay with overexpressed proteins Reference
Cell or tissue Cell or tissue TRP channel construct Interactor construct
TRP channel Interactor Method Species Region Species Region
TRPV1 Link 2bd4d11adb659cddf58197a94e201f0a44c55d8d7cb427c624971b42e122c0a4 PACS-1 Co-immunoprecipitation HEK293 Human Full-length Human Full-length 23159249
(Link 2bd4d11adb659cddf58197a94e201f0a44c55d8d7cb427c624971b42e122c0a4: click the arrow icon to show interactions only between the corresponding TRP channel and the interactor)
TRP / Interactor

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