chr19-45940354-AG-A

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The NM_002516.4(NOVA2):​c.987delC​(p.Tyr330fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 32)

Consequence

NOVA2
NM_002516.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 2.07
Variant links:
Genes affected
NOVA2 (HGNC:7887): (NOVA alternative splicing regulator 2) Enables sequence-specific mRNA binding activity. Involved in neuron differentiation and regulation of alternative mRNA splicing, via spliceosome. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.333 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 19-45940354-AG-A is Pathogenic according to our data. Variant chr19-45940354-AG-A is described in ClinVar as [Pathogenic]. Clinvar id is 3068386.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NOVA2NM_002516.4 linkuse as main transcriptc.987delC p.Tyr330fs frameshift_variant 4/4 ENST00000263257.6 NP_002507.1 Q9UNW9
NOVA2XM_006723230.4 linkuse as main transcriptc.660delC p.Tyr221fs frameshift_variant 5/5 XP_006723293.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NOVA2ENST00000263257.6 linkuse as main transcriptc.987delC p.Tyr330fs frameshift_variant 4/41 NM_002516.4 ENSP00000263257.4 Q9UNW9
NOVA2ENST00000676183.1 linkuse as main transcriptc.1179delC p.Tyr394fs frameshift_variant 4/4 ENSP00000501708.1 A0A6Q8PFC2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Neurodevelopmental disorder with or without autistic features and/or structural brain abnormalities Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingMVZ Medizinische Genetik MainzMay 06, 2022ACMG Criteria: PVS1_STR, PS2_MOD, PM2_SUP, PM5_SUP, PM1 (ACMG Version 3) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-46443612; API