10-43111393-A-G

Variant names:

• chr10-43111393-A-G
• rs755660496
• NM_020975.6:c.1450A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BP6

The NM_020975.6(RET):​c.1450A>G​(p.Met484Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000483 in 1,447,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 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. M484T) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: RET NM_020975.6 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:1
• Conservation: PhyloP100: 0.600
• Publications: 1 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.036875725).
• BP6: Variant 10-43111393-A-G is Benign according to our data. Variant chr10-43111393-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 579366.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RET	NM_020975.6	c.1450A>G	p.Met484Val	missense_variant	Exon 7 of 20	ENST00000355710.8	NP_066124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RET	ENST00000355710.8	c.1450A>G	p.Met484Val	missense_variant	Exon 7 of 20	5	NM_020975.6	ENSP00000347942.3

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251234 AF XY: 0.00000736

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: 0.0000176

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000483 AC: 7 AN: 1447900 Hom.: 0 Cov.: 58 AF XY: 0.00000417 AC XY: 3 AN XY: 720126

African (AFR) AF: 0.00 AC: 0 AN: 33022

American (AMR) AF: 0.00 AC: 0 AN: 44296

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25640

East Asian (EAS) AF: 0.00 AC: 0 AN: 38918

South Asian (SAS) AF: 0.00 AC: 0 AN: 86122

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5688

European-Non Finnish (NFE) AF: 0.00000635 AC: 7 AN: 1103176

Other (OTH) AF: 0.00 AC: 0 AN: 59416

GnomAD4 genome Cov.: 34

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:1

Revision: criteria provided, conflicting classifications

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

May 27, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Multiple endocrine neoplasia, type 2 Uncertain:1

Sep 01, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 484 of the RET protein (p.Met484Val). This variant is present in population databases (no rsID available, gnomAD 0.002%). 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: 579366). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The valine 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. -

Hereditary cancer-predisposing syndrome Benign:1

Dec 01, 2023

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.064
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	5.3
DANN	Benign	0.37
DEOGEN2	Benign	0.40	T;.
Eigen	Benign	-1.1
Eigen_PC	Benign	-0.96
FATHMM_MKL	Benign	0.17	N
LIST_S2	Benign	0.48	T;T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.037	T;T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	0.34	N;N
PhyloP100		0.60
PrimateAI	Benign	0.20	T
PROVEAN	Benign	-0.70	N;N
REVEL	Benign	0.13
Sift	Benign	0.66	T;T
Sift4G	Benign	0.53	T;T
Polyphen		0.0	B;B
Vest4		0.044
MutPred		0.34		Loss of phosphorylation at Y483 (P = 0.1884);Loss of phosphorylation at Y483 (P = 0.1884);
MVP		0.46
MPC		0.20
ClinPred		0.026	T
GERP RS		2.0
Varity_R		0.095
gMVP		0.31
Mutation Taster		=94/6	polymorphism

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

Other links and lift over

dbSNP: rs755660496; hg19: chr10-43606841;