NM_022455.5:c.395G>A
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4
The NM_022455.5(NSD1):c.395G>A(p.Cys132Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,204 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C132S) has been classified as Likely benign.
Frequency
Consequence
NM_022455.5 missense
Scores
Clinical Significance
Conservation
Publications
- Beckwith-Wiedemann syndrome due to NSD1 mutationInheritance: AD Classification: DEFINITIVE Submitted by: G2P
- Sotos syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen
- Sotos syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
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ACMG classification
Our verdict: Uncertain_significance. The variant received 1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| NSD1 | NM_022455.5 | c.395G>A | p.Cys132Tyr | missense_variant | Exon 2 of 23 | ENST00000439151.7 | NP_071900.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| NSD1 | ENST00000439151.7 | c.395G>A | p.Cys132Tyr | missense_variant | Exon 2 of 23 | 1 | NM_022455.5 | ENSP00000395929.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152204Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome Cov.: 32
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152204Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74372 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:1
This sequence change replaces cysteine, which is neutral and slightly polar, with tyrosine, which is neutral and polar, at codon 132 of the NSD1 protein (p.Cys132Tyr). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NSD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 2629849). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt NSD1 protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
NSD1-related disorder Uncertain:1
The NSD1 c.395G>A variant is predicted to result in the amino acid substitution p.Cys132Tyr. To our knowledge, this variant has not been reported in the literature or in a large population database (http://gnomad.broadinstitute.org), indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at