rs371731991
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_020975.6(RET):c.1253G>A(p.Arg418Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,612,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R418P) has been classified as Uncertain significance.
Frequency
Consequence
NM_020975.6 missense
Scores
Clinical Significance
Conservation
Publications
- familial medullary thyroid carcinomaInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
- multiple endocrine neoplasia type 2AInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
- multiple endocrine neoplasia type 2BInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
- pheochromocytomaInheritance: AD Classification: DEFINITIVE Submitted by: G2P
- Hirschsprung disease, susceptibility to, 1Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- Haddad syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Hirschsprung diseaseInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- renal agenesis, unilateralInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- bilateral renal agenesisInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- renal agenesisInheritance: AR Classification: LIMITED Submitted by: G2P
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_020975.6. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| RET | NM_020975.6 | MANE Select | c.1253G>A | p.Arg418Gln | missense | Exon 6 of 20 | NP_066124.1 | ||
| RET | NM_001406743.1 | c.1253G>A | p.Arg418Gln | missense | Exon 6 of 21 | NP_001393672.1 | |||
| RET | NM_001406744.1 | c.1253G>A | p.Arg418Gln | missense | Exon 6 of 20 | NP_001393673.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| RET | ENST00000355710.8 | TSL:5 MANE Select | c.1253G>A | p.Arg418Gln | missense | Exon 6 of 20 | ENSP00000347942.3 | ||
| RET | ENST00000340058.6 | TSL:1 | c.1253G>A | p.Arg418Gln | missense | Exon 6 of 19 | ENSP00000344798.4 | ||
| RET | ENST00000713926.1 | c.1124G>A | p.Arg375Gln | missense | Exon 6 of 19 | ENSP00000519223.1 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152220Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000200 AC: 5AN: 249984 AF XY: 0.0000222 show subpopulations
GnomAD4 exome AF: 0.0000171 AC: 25AN: 1460628Hom.: 0 Cov.: 33 AF XY: 0.0000193 AC XY: 14AN XY: 726634 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152220Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74356 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia type 2A;C0025269:Multiple endocrine neoplasia type 2B;C0031511:Pheochromocytoma;C1833921:Familial medullary thyroid carcinoma;C3888239:Hirschsprung disease, susceptibility to, 1 Uncertain:1
Hirschsprung disease, susceptibility to, 1 Uncertain:1
Multiple endocrine neoplasia, type 2 Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 418 of the RET protein (p.Arg418Gln). This variant is present in population databases (rs371731991, gnomAD 0.02%). This missense change has been observed in individual(s) with RET-related conditions (PMID: 34309460). ClinVar contains an entry for this variant (Variation ID: 219872). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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.
not provided Uncertain:1
In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at