rs121917838
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_020999.4(NEUROG3):c.278G>T(p.Arg93Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_020999.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NEUROG3 | NM_020999.4 | c.278G>T | p.Arg93Leu | missense_variant | Exon 2 of 2 | ENST00000242462.5 | NP_066279.2 | |
NEUROG3 | XM_017016280.2 | c.278G>T | p.Arg93Leu | missense_variant | Exon 2 of 2 | XP_016871769.1 | ||
LOC101929021 | XR_428765.3 | n.-191C>A | upstream_gene_variant | |||||
LOC101929021 | XR_946037.2 | n.-191C>A | upstream_gene_variant |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152252Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000399 AC: 1AN: 250916Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135722
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461674Hom.: 0 Cov.: 36 AF XY: 0.00 AC XY: 0AN XY: 727158
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152252Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74384
ClinVar
Submissions by phenotype
Congenital malabsorptive diarrhea 4 Pathogenic:3
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not provided Pathogenic:1
This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 93 of the NEUROG3 protein (p.Arg93Leu). This variant is present in population databases (rs121917838, gnomAD 0.003%). This missense change has been observed in individuals with congenital malabsorptive diarrhea (PMID: 16855267, 26541772). ClinVar contains an entry for this variant (Variation ID: 5323). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change affects NEUROG3 function (PMID: 31178402, 31805014). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at