8-132983343-T-A

Position:

chr8-132983343-T-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_003235.5(TG):c.6200-7T>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00374 in 1,614,102 control chromosomes in the GnomAD database, including 17 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0023 ( 2 hom., cov: 32)

Exomes 𝑓: 0.0039 ( 15 hom. )

Consequence

TG
NM_003235.5 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.0005735

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 0.324

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 8-132983343-T-A is Benign according to our data. Variant chr8-132983343-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 258998.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=1, Uncertain_significance=2}. Variant chr8-132983343-T-A is described in Lovd as [Benign].

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TG	NM_003235.5 linkuse as main transcript	c.6200-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000220616.9	NP_003226.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TG	ENST00000220616.9 linkuse as main transcript	c.6200-7T>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_003235.5	ENSP00000220616	P1	P01266-1

Frequencies

GnomAD3 genomes

AF:

0.00227

AC:

346

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000748

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00113

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00395

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.00242

AC:

608

AN:

251414

Hom.:

AF XY:

0.00241

AC XY:

327

AN XY:

135876

show subpopulations

Gnomad AFR exome

AF:

0.000861

Gnomad AMR exome

AF:

0.000809

Gnomad ASJ exome

AF:

0.000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.00166

Gnomad NFE exome

AF:

0.00440

Gnomad OTH exome

AF:

0.00212

GnomAD4 exome

AF:

0.00389

AC:

5689

AN:

1461770

Hom.:

Cov.:

AF XY:

0.00366

AC XY:

2664

AN XY:

727192

show subpopulations

Gnomad4 AFR exome

AF:

0.000717

Gnomad4 AMR exome

AF:

0.000738

Gnomad4 ASJ exome

AF:

0.000995

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000313

Gnomad4 FIN exome

AF:

0.00180

Gnomad4 NFE exome

AF:

0.00468

Gnomad4 OTH exome

AF:

0.00432

GnomAD4 genome

AF:

0.00227

AC:

346

AN:

152332

Hom.:

Cov.:

AF XY:

0.00197

AC XY:

147

AN XY:

74494

show subpopulations

Gnomad4 AFR

AF:

0.000745

Gnomad4 AMR

AF:

0.00183

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00113

Gnomad4 NFE

AF:

0.00395

Gnomad4 OTH

AF:

0.00236

Alfa

AF:

0.00274

Hom.:

Bravo

AF:

0.00229

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00431

EpiControl

AF:

0.00391

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:2

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2023	TG: BP4 -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Sep 14, 2022	Has not been previously published as pathogenic or benign to our knowledge; In-silico analysis is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown. -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -

Iodotyrosyl coupling defect

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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. -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

6.9

DANN

Benign

0.48

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00057

dbscSNV1_RF

Benign

0.020

SpliceAI score (max)

0.29

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.29

Position offset: 7

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over