Severe microcephaly

Region: ISCA-37390-Loss

5p15 terminal (Cri du chat syndrome) region Loss

Green List (high evidence)

Chromosome: 5
GRCh38 Position: 37695-11347150
Haploinsufficiency Score: Sufficient evidence suggesting dosage sensitivity is associated with clinical phenotype
Triplosensitivity Score:
Required percent of overlap: 80%
Variant types: CNV Loss

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Details

ISCA ID
ISCA-37390-Loss
ISCA Region Name
5p15 terminal (Cri du chat syndrome) region Loss
Chromosome
5
GRCh38 Coordinates
37695-11347150
Haploinsufficiency Score
Sufficient evidence suggesting dosage sensitivity is associated with clinical phenotype
Triplosensitivity Score
Required percent of overlap
80%
Mode of Inheritance
MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Sources
  • Expert Review Green
  • ClinGen
Phenotypes
  • 123450
  • PMID 15635506: characteristic cry, speech delay, facial dysmorphology, and level of mental retardation. PMID 11238681: interstitial deletions and one with a small terminal deletion confirmed the existence of two critical regions, one for dysmorphism and mental retardation in p15.2 and the other for the cat cry in p15.3. Results from one patient permitted the cat cry region to be distally narrowed from D5S13 to D5S731, study supports hypothesis of a separate region in p15.3 for the speech delay
Clinvar variants
Variants in
Penetrance
None
Variant types
CNV Loss
Publications

History Filter Activity

7 Sep 2018, Gel status: 4

Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes

Louise Daugherty (Genomics England Curator)

Region: ISCA-37390-Loss was added Region: ISCA-37390-Loss was added to Primary Microcephaly - Microcephalic Dwarfism Spectrum. Sources: ClinGen,Expert Review Green Mode of inheritance for Region: ISCA-37390-Loss was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for Region: ISCA-37390-Loss were set to 11238681; 15635506 Phenotypes for Region: ISCA-37390-Loss were set to 123450; PMID 15635506: characteristic cry, speech delay, facial dysmorphology, and level of mental retardation. PMID 11238681: interstitial deletions and one with a small terminal deletion confirmed the existence of two critical regions, one for dysmorphism and mental retardation in p15.2 and the other for the cat cry in p15.3. Results from one patient permitted the cat cry region to be distally narrowed from D5S13 to D5S731, study supports hypothesis of a separate region in p15.3 for the speech delay