NM_021222.3:c.316G>A
Variant summary
Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM1PM2PP5_Very_Strong
The NM_021222.3(PRUNE1):c.316G>A(p.Asp106Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,838 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_021222.3 missense
Scores
Clinical Significance
Conservation
Publications
- neurodevelopmental disorder with microcephaly, hypotonia, and variable brain anomaliesInheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
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ACMG classification
Our verdict: Pathogenic. The variant received 12 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PRUNE1 | NM_021222.3 | c.316G>A | p.Asp106Asn | missense_variant | Exon 3 of 8 | ENST00000271620.8 | NP_067045.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152094Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000518 AC: 13AN: 251126 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000253 AC: 37AN: 1461744Hom.: 0 Cov.: 32 AF XY: 0.0000330 AC XY: 24AN XY: 727160 show subpopulations
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152094Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74290 show subpopulations
ClinVar
Submissions by phenotype
Neurodevelopmental disorder with microcephaly, hypotonia, and variable brain anomalies Pathogenic:10
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PM2_Supporting+PS3_Supporting+PM3_VeryStrong -
Observed as a homozygote. -
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The missense variant c.316G>A (p.Asp106Asn) in PRUNE1 gene has been reported to be homozygous in several individuals with syndromic intellectual disability (Karaca E et.al.,2015). Experimental studies show that missense change affect PRUNE1 function (Zollo M et.al .,2017). This variant has been reported to the ClinVar database as Pathogenic/Likely Pathogenic. The p.Asp106Asn variant is novel (not in any individuals) in 1000 Genomes and allele frequency of 0.00005177% is reported in gnomAD. The amino acid Asp at position 106 is changed to a Asn changing protein sequence and it might alter its composition and physico-chemical properties. For these reasons, this variant has been classified as Pathogenic. -
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not provided Pathogenic:3
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This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 106 of the PRUNE1 protein (p.Asp106Asn). This variant is present in population databases (rs773618224, gnomAD 0.02%). This missense change has been observed in individual(s) with PRUNE1-related neurodevelopmental conditions (PMID: 26539891, 28334956, 29797509). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 402131). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PRUNE1 protein function with a negative predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -
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Abnormal brain morphology Pathogenic:1
There are 3 more families with similar phenotype -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at