10-43112125-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_020975.6(RET):c.1549C>G(p.Leu517Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000621 in 1,449,164 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L517R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

RET
NM_020975.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: -0.0470

Publications

1 publications found

Variant links:

Genes affected

RET (HGNC:9967): (ret proto-oncogene) This gene encodes a transmembrane receptor and member of the tyrosine protein kinase family of proteins. Binding of ligands such as GDNF (glial cell-line derived neurotrophic factor) and other related proteins to the encoded receptor stimulates receptor dimerization and activation of downstream signaling pathways that play a role in cell differentiation, growth, migration and survival. The encoded receptor is important in development of the nervous system, and the development of organs and tissues derived from the neural crest. This proto-oncogene can undergo oncogenic activation through both cytogenetic rearrangement and activating point mutations. Mutations in this gene are associated with Hirschsprung disease and central hypoventilation syndrome and have been identified in patients with renal agenesis. [provided by RefSeq, Sep 2017]

RET Gene-Disease associations (from GenCC):

familial medullary thyroid carcinoma
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
multiple endocrine neoplasia type 2A
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
multiple endocrine neoplasia type 2B
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
pheochromocytoma
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
Hirschsprung disease, susceptibility to, 1
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Haddad syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Hirschsprung disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
renal agenesis, unilateral
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
bilateral renal agenesis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
renal agenesis
Inheritance: AR Classification: LIMITED Submitted by: G2P

RET links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.069033).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RET	NM_020975.6 link	c.1549C>G	p.Leu517Val	missense_variant	Exon 8 of 20	ENST00000355710.8	NP_066124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RET	ENST00000355710.8 link	c.1549C>G	p.Leu517Val	missense_variant	Exon 8 of 20	5	NM_020975.6	ENSP00000347942.3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000444

AC:

AN:

225298

AF XY:

0.00000819

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000993

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000621

AC:

AN:

1449164

Hom.:

Cov.:

AF XY:

0.00000695

AC XY:

AN XY:

719624

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33246

American (AMR)

AF:

0.00

AC:

AN:

43204

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25860

East Asian (EAS)

AF:

0.00

AC:

AN:

39024

South Asian (SAS)

AF:

0.0000119

AC:

AN:

83854

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52240

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5730

European-Non Finnish (NFE)

AF:

0.00000723

AC:

AN:

1106118

Other (OTH)

AF:

0.00

AC:

AN:

59888

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.453

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Multiple endocrine neoplasia type 2A

Uncertain:1

Oct 05, 2022

St. Jude Molecular Pathology, St. Jude Children's Research Hospital

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The RET c.1549C>G (p.Leu517Val) missense change has a maximum subpopulation frequency of 0.099% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a benign effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. To our knowledge, this variant has not been reported in the literature in individuals with multiple endocrine neoplasia type 2. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -

Multiple endocrine neoplasia, type 2

Uncertain:1

Jan 19, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 517 of the RET protein (p.Leu517Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with RET-related conditions. ClinVar contains an entry for this variant (Variation ID: 486307). 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 tolerated. 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. -

Hereditary cancer-predisposing syndrome

Uncertain:1

Sep 01, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.L517V variant (also known as c.1549C>G), located in coding exon 8 of the RET gene, results from a C to G substitution at nucleotide position 1549. The leucine at codon 517 is replaced by valine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.089

BayesDel_addAF

Uncertain

0.046

BayesDel_noAF

Benign

-0.17

CADD

Benign

8.1

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.41

T;T;.

Eigen

Benign

-0.73

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.66

T;T;T

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.069

T;T;T

MetaSVM

Uncertain

0.23

MutationAssessor

Uncertain

2.4

M;.;M

PhyloP100

-0.047

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.45

N;N;N

REVEL

Benign

0.16

Sift

Benign

0.23

T;T;T

Sift4G

Benign

0.38

T;T;T

Polyphen

0.075

B;.;B

Vest4

0.22

MutPred

0.18

Gain of catalytic residue at L517 (P = 0.0176);.;Gain of catalytic residue at L517 (P = 0.0176);

MVP

0.74

MPC

0.22

ClinPred

0.036

GERP RS

-3.3

Varity_R

0.082

gMVP

0.53

Mutation Taster

=91/9

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over