NM_020975.6:c.2556C>G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP3BS1_Supporting

The NM_020975.6(RET):c.2556C>G(p.Ile852Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000214 in 1,613,560 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. I852V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

RET
NM_020975.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:17B:2

Conservation

PhyloP100: 0.525

Publications

25 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: Uncertain_significance. The variant received 0 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.806

BS1

Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000225 (329/1461236) while in subpopulation SAS AF = 0.000348 (30/86256). AF 95% confidence interval is 0.00025. There are 0 homozygotes in GnomAdExome4. There are 156 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020975.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
RET	NM_020975.6	MANE Select	c.2556C>G	p.Ile852Met	missense	Exon 14 of 20	NP_066124.1
RET	NM_001406743.1		c.2556C>G	p.Ile852Met	missense	Exon 14 of 21	NP_001393672.1
RET	NM_001406744.1		c.2556C>G	p.Ile852Met	missense	Exon 14 of 20	NP_001393673.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
RET	ENST00000355710.8	TSL:5 MANE Select	c.2556C>G	p.Ile852Met	missense	Exon 14 of 20	ENSP00000347942.3
RET	ENST00000340058.6	TSL:1	c.2556C>G	p.Ile852Met	missense	Exon 14 of 19	ENSP00000344798.4
RET	ENST00000713926.1		c.2292C>G	p.Ile764Met	missense	Exon 14 of 19	ENSP00000519223.1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000221

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000175

AC:

AN:

250818

AF XY:

0.000155

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:

0.000139

Gnomad NFE exome

AF:

0.000274

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000225

AC:

329

AN:

1461236

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

156

AN XY:

726936

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.000348

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.000132

AC:

AN:

52860

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000255

AC:

284

AN:

1111956

Other (OTH)

AF:

0.0000994

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

105

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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

AF:

0.000112

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41574

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000207

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000221

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.537

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000223

Hom.:

Bravo

AF:

0.000110

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000778

AC:

ExAC

AF:

0.000148

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000600

EpiControl

AF:

0.000237

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

Multiple endocrine neoplasia, type 2 (4)

Multiple endocrine neoplasia type 2A (2)

Multiple endocrine neoplasia type 2B (2)

not specified (2)

Hereditary cancer-predisposing syndrome (1)

Hirschsprung disease, susceptibility to, 1 (1)

Multiple endocrine neoplasia type 2A;C0025269:Multiple endocrine neoplasia type 2B;C0031511:Pheochromocytoma;C1833921:Familial medullary thyroid carcinoma;C3888239:Hirschsprung disease, susceptibility to, 1 (1)

RET-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.32

BayesDel_addAF

Benign

-0.0073

BayesDel_noAF

Uncertain

0.050

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.64

Eigen

Uncertain

0.28

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.95

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.81

MetaSVM

Uncertain

-0.048

MutationAssessor

Benign

1.2

PhyloP100

0.53

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-1.4

REVEL

Pathogenic

0.65

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.029

Polyphen

1.0

Vest4

0.85

MVP

0.83

MPC

0.72

ClinPred

0.15

GERP RS

3.2

Varity_R

0.88

gMVP

0.76

Mutation Taster

=3/97

disease causing

(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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over