rs766082334
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_002506.3(NGF):c.196C>A(p.Gln66Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,614,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_002506.3 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| NGF | NM_002506.3 | c.196C>A | p.Gln66Lys | missense_variant | Exon 3 of 3 | ENST00000369512.3 | NP_002497.2 | |
| NGF | NM_001437545.1 | c.196C>A | p.Gln66Lys | missense_variant | Exon 2 of 2 | NP_001424474.1 | ||
| NGF | XM_011541518.3 | c.361C>A | p.Gln121Lys | missense_variant | Exon 3 of 3 | XP_011539820.1 | ||
| NGF-AS1 | NR_157569.1 | n.207+3360G>T | intron_variant | Intron 1 of 1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152230Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000279 AC: 7AN: 251038 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.0000246 AC: 36AN: 1461866Hom.: 0 Cov.: 30 AF XY: 0.0000220 AC XY: 16AN XY: 727242 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152230Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74366 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Congenital sensory neuropathy with selective loss of small myelinated fibers Uncertain:3
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This sequence change replaces glutamine, which is neutral and polar, with lysine, which is basic and polar, at codon 66 of the NGF protein (p.Gln66Lys). This variant is present in population databases (rs766082334, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with NGF-related conditions. ClinVar contains an entry for this variant (Variation ID: 291992). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Inborn genetic diseases Uncertain:1
The c.196C>A (p.Q66K) alteration is located in exon 3 (coding exon 1) of the NGF gene. This alteration results from a C to A substitution at nucleotide position 196, causing the glutamine (Q) at amino acid position 66 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at