10-43100480-C-G

Variant names:

• chr10-43100480-C-G
• rs76764689
• NM_020975.6:c.95C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PM5

The NM_020975.6(RET):​c.95C>G​(p.Ser32Trp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S32L) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RET NM_020975.6 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 4.67
• Publications: 0 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: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr10-43100480-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 13923.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RET	NM_020975.6	c.95C>G	p.Ser32Trp	missense_variant	Exon 2 of 20	ENST00000355710.8	NP_066124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RET	ENST00000355710.8	c.95C>G	p.Ser32Trp	missense_variant	Exon 2 of 20	5	NM_020975.6	ENSP00000347942.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 37

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

RET-related disorder Uncertain:1

Aug 07, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The RET c.95C>G variant is predicted to result in the amino acid substitution p.Ser32Trp. To our knowledge, this variant has not been reported in the literature or in a large population database, indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.71
BayesDel_addAF	Uncertain	0.087	D
BayesDel_noAF	Benign	-0.11
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.56	D;.;.
Eigen	Uncertain	0.68
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.93	D;D;D
M_CAP	Uncertain	0.17	D
MetaRNN	Uncertain	0.60	D;D;D
MetaSVM	Uncertain	0.23	D
MutationAssessor	Uncertain	2.5	M;.;M
PhyloP100		4.7
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-2.4	N;.;N
REVEL	Uncertain	0.57
Sift	Uncertain	0.022	D;.;D
Sift4G	Uncertain	0.022	D;D;D
Polyphen		1.0	D;.;D
Vest4		0.58
MutPred		0.59		Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);
MVP		0.83
MPC		2.1
ClinPred		0.97	D
GERP RS		5.5
PromoterAI		-0.0029	Neutral
Varity_R		0.42
gMVP		0.74
Mutation Taster		=28/72	disease causing

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: rs76764689; hg19: chr10-43595928;