chr8-132886939-T-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_003235.5(TG):c.1567T>C(p.Ser523Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00181 in 1,614,156 control chromosomes in the GnomAD database, including 6 homozygotes. 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).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0019 ( 6 hom. )

Consequence

TG
NM_003235.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:3

Conservation

PhyloP100: 1.60

Publications

9 publications found

Variant links:

Genes affected

TG (HGNC:11764): (thyroglobulin) Thyroglobulin (Tg) is a glycoprotein homodimer produced predominantly by the thryroid gland. It acts as a substrate for the synthesis of thyroxine and triiodothyronine as well as the storage of the inactive forms of thyroid hormone and iodine. Thyroglobulin is secreted from the endoplasmic reticulum to its site of iodination, and subsequent thyroxine biosynthesis, in the follicular lumen. Mutations in this gene cause thyroid dyshormonogenesis, manifested as goiter, and are associated with moderate to severe congenital hypothyroidism. Polymorphisms in this gene are associated with susceptibility to autoimmune thyroid diseases (AITD) such as Graves disease and Hashimoto thryoiditis. [provided by RefSeq, Nov 2009]

TG Gene-Disease associations (from GenCC):

thyroid dyshormonogenesis 3
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
familial thyroid dyshormonogenesis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
thyroid cancer
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

TG links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0060213506).

BP6

Variant 8-132886939-T-C is Benign according to our data. Variant chr8-132886939-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 361915.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00186 (2720/1461880) while in subpopulation MID AF = 0.00867 (50/5768). AF 95% confidence interval is 0.00675. There are 6 homozygotes in GnomAdExome4. There are 1358 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 6 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TG	NM_003235.5 link	c.1567T>C	p.Ser523Pro	missense_variant	Exon 9 of 48	ENST00000220616.9	NP_003226.4	P01266-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TG	ENST00000220616.9 link	c.1567T>C	p.Ser523Pro	missense_variant	Exon 9 of 48	1	NM_003235.5	ENSP00000220616.4		P01266-1

Frequencies

GnomAD3 genomes

AF:

0.00135

AC:

206

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.00288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00243

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00160

AC:

403

AN:

251162

AF XY:

0.00169

show subpopulations

Gnomad AFR exome

AF:

0.000248

Gnomad AMR exome

AF:

0.000723

Gnomad ASJ exome

AF:

0.00337

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.00268

Gnomad OTH exome

AF:

0.00163

GnomAD4 exome

AF:

0.00186

AC:

2720

AN:

1461880

Hom.:

Cov.:

AF XY:

0.00187

AC XY:

1358

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.000568

AC:

AN:

33480

American (AMR)

AF:

0.000827

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00310

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000800

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000562

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00867

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00210

AC:

2336

AN:

1112012

Other (OTH)

AF:

0.00207

AC:

125

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

186

372

559

745

931

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

152

228

304

380

<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:

0.00135

AC:

206

AN:

152276

Hom.:

Cov.:

AF XY:

0.00125

AC XY:

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.000313

AC:

AN:

41566

American (AMR)

AF:

0.000523

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00288

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.000623

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.000188

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00243

AC:

165

AN:

68028

Other (OTH)

AF:

0.00189

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

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:

0.00240

Hom.:

Bravo

AF:

0.00148

TwinsUK

AF:

0.00135

AC:

ALSPAC

AF:

0.00311

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00419

AC:

ExAC

AF:

0.00175

AC:

213

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00316

EpiControl

AF:

0.00409

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:2

Dec 05, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: TG c.1567T>C (p.Ser523Pro) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0016 in 251162 control chromosomes in the gnomAD database, including 1 homozygote. c.1567T>C has been reported in the literature in individuals affected with TG-Related Disorders, without strong evidence for causality (e.g. Barquero_2022). These report(s) do not provide unequivocal conclusions about association of the variant with TG-Related Disorders. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 36012511, 31287502). Four submitters have cited clinical-significance assessments for this variant to ClinVar after 2014, classifying the variant as likely benign (n=2) or uncertain significance (n=2). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Nov 07, 2016

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

May 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

TG: BP4 -

Apr 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Iodotyrosyl coupling defect

Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

TG-related disorder

Benign:1

Feb 10, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.51

CADD

Benign

8.9

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.075

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.52

M_CAP

Benign

0.021

MetaRNN

Benign

0.0060

MetaSVM

Benign

-0.98

MutationAssessor

Benign

2.0

PhyloP100

1.6

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.8

REVEL

Benign

0.079

Sift

Benign

0.25

Sift4G

Benign

0.067

Polyphen

0.049

Vest4

0.15

MVP

0.72

MPC

0.094

ClinPred

0.0086

GERP RS

2.5

Varity_R

0.15

gMVP

0.35

Mutation Taster

=100/0

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over