rs370736139
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1
The NM_020975.6(RET):c.539G>A(p.Arg180Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000039 in 1,614,032 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R180G) 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: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RET | NM_020975.6 | c.539G>A | p.Arg180Gln | missense_variant | Exon 3 of 20 | ENST00000355710.8 | NP_066124.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152164Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.000135 AC: 34AN: 251346 AF XY: 0.000118 show subpopulations
GnomAD4 exome AF: 0.0000397 AC: 58AN: 1461868Hom.: 0 Cov.: 32 AF XY: 0.0000385 AC XY: 28AN XY: 727236 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152164Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74334 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia type 2A Uncertain:1Benign:1
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
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Multiple endocrine neoplasia, type 2 Uncertain:1Benign:1
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This missense variant replaces arginine with glutamine at codon 180 of the RET protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with MEN2 or medullary thyroid carcinoma. This variant has been reported in an individual affected with Hirschsprung disease (PMID: 10790203). This variant has been identified in 37/282728 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Multiple endocrine neoplasia type 2B Uncertain:1
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
Aganglionic megacolon Uncertain:1
Low GERP score may suggest that this variant may belong in a lower pathogenicity class -
Familial medullary thyroid carcinoma Uncertain:1
This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
not provided Uncertain:1
The RET c.539G>A; p.Arg180Gln variant (rs370736139) is reported in the literature in an individual affected with Hirschsprung disease (Hofstra 2000). This variant is also reported in ClinVar (Variation ID: 161360). This variant is found in the Latino population with an allele frequency of 0.08% (27/35,432 alleles) in the Genome Aggregation Database. Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.223). Due to limited information, the clinical significance of this variant is uncertain at this time. References: Hofstra RM et al. RET and GDNF gene scanning in Hirschsprung patients using two dual denaturing gel systems. Hum Mutat. 2000;15(5):418-29. PMID: 10790203. -
not specified Benign:1
Variant summary: RET c.539G>A (p.Arg180Gln) results in a conservative amino acid change located in the Cadherins domain profile (IPR002126) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00014 in 251346 control chromosomes, predominantly at a frequency of 0.00072 within the Latino subpopulation in the gnomAD database. The observed variant frequency within Latino control individuals in the gnomAD database is approximately 2.92 fold of the estimated maximal expected allele frequency for a pathogenic variant in RET causing Hirschsprung Disease phenotype (0.00025). c.539G>A has been reported in the literature in at least one individual affected with Hirschsprung Disease (Hofstra_2000). These report(s) do not provide unequivocal conclusions about association of the variant with Hirschsprung Disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 10790203). ClinVar contains an entry for this variant (Variation ID: 161360). Based on the evidence outlined above, the variant was classified as likely benign. -
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as likely 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. -
RET-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at