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  3. ISCA-37468-Loss

Brain channelopathy

Region: ISCA-37468-Loss

Xp11.23 region (includes MAOA and MAOB) Loss

Green List (high evidence)
Chromosome: X
GRCh38 Position: 43654906-43882474
Haploinsufficiency Score: Sufficient evidence suggesting dosage sensitivity is associated with clinical phenotype
Triplosensitivity Score:
Required percent of overlap: 60%
Variant types: CNV Loss

1 review

Arina Puzriakova (Genomics England Curator)

The required percent of overlap for this region has been changed from 80% to 60% following NHS Genomic Medicine Service approval.
Created: 16 Mar 2022, 1:22 p.m. | Last Modified: 16 Mar 2022, 1:22 p.m.
Panel Version: 1.78
Created: 16 Mar 2022, 1:22 p.m.
Last Modified: 16 Mar 2022, 1:22 p.m.
Panel version: 1.78

Details

ISCA ID
ISCA-37468-Loss
ISCA Region Name
Xp11.23 region (includes MAOA and MAOB) Loss
Chromosome
X
GRCh38 Coordinates
43654906-43882474
Haploinsufficiency Score
Sufficient evidence suggesting dosage sensitivity is associated with clinical phenotype
Triplosensitivity Score
Required percent of overlap
60%
Mode of Inheritance
X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
Sources
  • Expert Review Green
  • ClinGen
Phenotypes
  • episodes of sudden loss of muscle tone
  • severe intellectual disability
  • exiting behavior
  • short stature
  • eleveated serotonin levels
  • autistic features
  • lip-smacking
  • hypotonia
  • stereotypical hand movements
Clinvar variants
Variants in
Penetrance
None
Variant types
CNV Loss
Publications

History Filter Activity

16 Mar 2022, Gel status: 3

Changed Triplosensitivity Score, Changed Required Overlap Percentage

Arina Puzriakova (Genomics England Curator)

Triplosensitivity Score for ISCA-37468-Loss was changed from None to . Required Overlap Percentage for ISCA-37468-Loss was changed from 80 to 60.

9 Sep 2019, Gel status: 3

Changed Triplosensitivity Score, Set mode of inheritance

Louise Daugherty (Genomics England Curator)

Triplosensitivity Score for ISCA-37468-Loss was changed from to None. Model of inheritance for Region: ISCA-37468-Loss was changed from X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than females) to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)

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-37468-Loss was added Region: ISCA-37468-Loss was added to Brain channelopathy. Sources: ClinGen,Expert Review Green Mode of inheritance for Region: ISCA-37468-Loss was set to X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than females) Publications for Region: ISCA-37468-Loss were set to 20485326; 22365943; 23414621 Phenotypes for Region: ISCA-37468-Loss were set to episodes of sudden loss of muscle tone; severe intellectual disability; exiting behavior; short stature; eleveated serotonin levels; autistic features; lip-smacking; hypotonia; stereotypical hand movements