rs398122823
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000834.5(GRIN2B):c.99_100insC(p.Ser34GlnfsTer25) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,546 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. P33P) has been classified as Likely benign.
Frequency
Consequence
NM_000834.5 frameshift
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GRIN2B | NM_000834.5 | c.99_100insC | p.Ser34GlnfsTer25 | frameshift_variant | 3/14 | ENST00000609686.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GRIN2B | ENST00000609686.4 | c.99_100insC | p.Ser34GlnfsTer25 | frameshift_variant | 3/14 | 1 | NM_000834.5 | P1 | |
GRIN2B | ENST00000627535.2 | c.99_100insC | p.Ser34GlnfsTer? | frameshift_variant | 3/3 | 5 | |||
GRIN2B | ENST00000630791.2 | c.99_100insC | p.Ser34GlnfsTer25 | frameshift_variant | 4/8 | 5 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461546Hom.: 0 Cov.: 34 AF XY: 0.00000963 AC XY: 7AN XY: 727062
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Intellectual disability, autosomal dominant 6 Pathogenic:3
Pathogenic, no assertion criteria provided | literature only | OMIM | Dec 21, 2012 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Victorian Clinical Genetics Services, Murdoch Childrens Research Institute | May 21, 2020 | Based on the classification scheme VCGS_Germline_v1.1.1, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss-of-function is a known mechanism of disease for this gene. (N) 0107 - This gene is known to be associated with autosomal dominant disease. (N) 0201 - Variant is predicted to cause nonsense-mediated decay (NMD) and loss of protein (exon 2 of 13). (P) 0251 - Variant is heterozygous. (N) 0302 - Variant is present in gnomAD <0.001 for a dominant condition (1 Heterozygote). (P) 0401 - Variant is located in a gene associated with a severe early-onset dominant condition that is intolerant to loss-of-function variants. (P) 0702 - Comparable variants have strong previous evidence for pathogenicity (ClinVar). (P) 0802 - Moderate previous evidence of pathogenicity in unrelated individuals (ClinVar, O'Roak, BJ. (2012)). (P) 0905 - No segregation evidence has been identified for this variant. (N) 1007 - No published functional evidence has been identified for this variant. (N) 1208 - Inheritance information for this variant is not currently available. (N) - |
Pathogenic, criteria provided, single submitter | clinical testing | Institute of Human Genetics, University of Leipzig Medical Center | Apr 04, 2017 | This variant was identified as de novo (maternity and paternity confirmed). - |
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Apr 25, 2017 | The c.99dupC variant in the GRIN2B gene has been reported previously as a de novo change in an individual with autism (O'Roak et al., 2012). The duplication causes a frameshift starting with codon Serine 34, changes this amino acid to a Glutamine residue and creates a premature Stop codon at position 25 of the new reading frame, denoted p.Ser34GlnfsX25. This variant is predicted to cause loss of normal protein function either through protein truncation or nonsense-mediated mRNA decay. Therefore, this variant is likely pathogenic; however, the possibility that it is benign cannot be excluded. - |
Intellectual disability Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Diagnostic Laboratory, Strasbourg University Hospital | Sep 10, 2020 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at