10-43100584-C-G

Position:

• chr10-43100584-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_020975.6(RET):​c.199C>G​(p.Arg67Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 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. R67C) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RET NM_020975.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.13

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.34654343).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RET	NM_020975.6	c.199C>G	p.Arg67Gly	missense_variant	2/20	ENST00000355710.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RET	ENST00000355710.8	c.199C>G	p.Arg67Gly	missense_variant	2/20	5	NM_020975.6	P4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 64

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hirschsprung disease, susceptibility to, 1 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Feb 23, 2020

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Uncertain	0.035	T
BayesDel_noAF	Benign	-0.19
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.48	T;.;.
Eigen	Benign	0.17
Eigen_PC	Uncertain	0.26
FATHMM_MKL	Uncertain	0.76	D
LIST_S2	Benign	0.81	T;D;T
M_CAP	Benign	0.051	D
MetaRNN	Benign	0.35	T;T;T
MetaSVM	Benign	-0.49	T
MutationAssessor	Uncertain	2.4	M;.;M
MutationTaster	Benign	0.77	N;N
PrimateAI	Benign	0.23	T
PROVEAN	Benign	-1.3	N;.;N
REVEL	Uncertain	0.33
Sift	Benign	0.28	T;.;T
Sift4G	Benign	0.29	T;D;T
Polyphen		0.40	B;.;P
Vest4		0.40
MutPred		0.40		Loss of catalytic residue at R67 (P = 0.0428);Loss of catalytic residue at R67 (P = 0.0428);Loss of catalytic residue at R67 (P = 0.0428);
MVP		0.84
MPC		1.0
ClinPred		0.67	D
GERP RS		5.5
Varity_R		0.20
gMVP		0.77

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

LitVar

Other links and lift over

dbSNP: rs749390385; hg19: chr10-43596032;