rs141031272
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Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_000834.5(GRIN2B):āc.1338A>Gā(p.Thr446=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000166 in 1,613,172 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā ā ).
Frequency
Genomes: š 0.00090 ( 1 hom., cov: 32)
Exomes š: 0.000090 ( 0 hom. )
Consequence
GRIN2B
NM_000834.5 synonymous
NM_000834.5 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.22
Genes affected
GRIN2B (HGNC:4586): (glutamate ionotropic receptor NMDA type subunit 2B) This gene encodes a member of the N-methyl-D-aspartate (NMDA) receptor family within the ionotropic glutamate receptor superfamily. The encoded protein is a subunit of the NMDA receptor ion channel which acts as an agonist binding site for glutamate. The NMDA receptors mediate a slow calcium-permeable component of excitatory synaptic transmission in the central nervous system. The NMDA receptors are heterotetramers of seven genetically encoded, differentially expressed subunits including NR1 (GRIN1), NR2 (GRIN2A, GRIN2B, GRIN2C, or GRIN2D) and NR3 (GRIN3A or GRIN3B). The early expression of this gene in development suggests a role in brain development, circuit formation, synaptic plasticity, and cellular migration and differentiation. Naturally occurring mutations within this gene are associated with neurodevelopmental disorders including autism spectrum disorder, attention deficit hyperactivity disorder, epilepsy, and schizophrenia. [provided by RefSeq, Aug 2017]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -21 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
?
Variant 12-13615655-T-C is Benign according to our data. Variant chr12-13615655-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 137518.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
?
Synonymous conserved (PhyloP=-1.22 with no splicing effect.
BS1
?
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0009 (137/152198) while in subpopulation AFR AF= 0.00306 (127/41454). AF 95% confidence interval is 0.00263. There are 1 homozygotes in gnomad4. There are 68 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
?
High AC in GnomAd4 at 137 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GRIN2B | NM_000834.5 | c.1338A>G | p.Thr446= | synonymous_variant | 7/14 | ENST00000609686.4 | |
LOC105369668 | XR_001749013.2 | n.613+429T>C | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GRIN2B | ENST00000609686.4 | c.1338A>G | p.Thr446= | synonymous_variant | 7/14 | 1 | NM_000834.5 | P1 | |
ENST00000652867.1 | n.331+429T>C | intron_variant, non_coding_transcript_variant | |||||||
GRIN2B | ENST00000630791.2 | c.1338A>G | p.Thr446= | synonymous_variant | 8/8 | 5 |
Frequencies
GnomAD3 genomes ? AF: 0.000900 AC: 137AN: 152198Hom.: 1 Cov.: 32
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GnomAD3 exomes AF: 0.000219 AC: 55AN: 251038Hom.: 0 AF XY: 0.000191 AC XY: 26AN XY: 135796
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GnomAD4 exome AF: 0.0000897 AC: 131AN: 1460974Hom.: 0 Cov.: 31 AF XY: 0.0000798 AC XY: 58AN XY: 726910
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GnomAD4 genome ? AF: 0.000900 AC: 137AN: 152198Hom.: 1 Cov.: 32 AF XY: 0.000915 AC XY: 68AN XY: 74352
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:1
Benign, criteria provided, single submitter | clinical testing | GeneDx | Apr 09, 2014 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | May 31, 2017 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Intellectual disability, autosomal dominant 6;C4015316:Developmental and epileptic encephalopathy, 27 Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 12, 2024 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at