rs114436500

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_003235.5(TG):​c.144C>T​(p.Tyr48Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00374 in 1,614,124 control chromosomes in the GnomAD database, including 17 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0036 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0038 ( 15 hom. )

Consequence

TG
NM_003235.5 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -2.12

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 8-132868191-C-T is Benign according to our data. Variant chr8-132868191-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 436995.
BP7
Synonymous conserved (PhyloP=-2.12 with no splicing effect.
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.00376 (5502/1461876) while in subpopulation MID AF = 0.0194 (112/5766). AF 95% confidence interval is 0.0165. There are 15 homozygotes in GnomAdExome4. There are 2791 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TGNM_003235.5 linkc.144C>T p.Tyr48Tyr synonymous_variant Exon 2 of 48 ENST00000220616.9 NP_003226.4 P01266-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TGENST00000220616.9 linkc.144C>T p.Tyr48Tyr synonymous_variant Exon 2 of 48 1 NM_003235.5 ENSP00000220616.4 P01266-1
TGENST00000523901.1 linkn.144C>T non_coding_transcript_exon_variant Exon 2 of 6 5 ENSP00000427871.1 E5RG33

Frequencies

GnomAD3 genomes
AF:
0.00356
AC:
542
AN:
152130
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000748
Gnomad AMI
AF:
0.00768
Gnomad AMR
AF:
0.00629
Gnomad ASJ
AF:
0.0153
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00414
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.0316
Gnomad NFE
AF:
0.00453
Gnomad OTH
AF:
0.00669
GnomAD2 exomes
AF:
0.00367
AC:
923
AN:
251430
AF XY:
0.00372
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.00382
Gnomad ASJ exome
AF:
0.0128
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.00432
Gnomad OTH exome
AF:
0.00896
GnomAD4 exome
AF:
0.00376
AC:
5502
AN:
1461876
Hom.:
15
Cov.:
32
AF XY:
0.00384
AC XY:
2791
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.000777
AC:
26
AN:
33480
American (AMR)
AF:
0.00407
AC:
182
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0133
AC:
348
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00434
AC:
374
AN:
86256
European-Finnish (FIN)
AF:
0.000187
AC:
10
AN:
53414
Middle Eastern (MID)
AF:
0.0194
AC:
112
AN:
5766
European-Non Finnish (NFE)
AF:
0.00368
AC:
4097
AN:
1112004
Other (OTH)
AF:
0.00583
AC:
352
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
324
648
973
1297
1621
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
162
324
486
648
810
<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:
0.00356
AC:
542
AN:
152248
Hom.:
2
Cov.:
32
AF XY:
0.00353
AC XY:
263
AN XY:
74442
show subpopulations
African (AFR)
AF:
0.000746
AC:
31
AN:
41550
American (AMR)
AF:
0.00628
AC:
96
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.0153
AC:
53
AN:
3466
East Asian (EAS)
AF:
0.000387
AC:
2
AN:
5172
South Asian (SAS)
AF:
0.00415
AC:
20
AN:
4824
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10620
Middle Eastern (MID)
AF:
0.0340
AC:
10
AN:
294
European-Non Finnish (NFE)
AF:
0.00453
AC:
308
AN:
68004
Other (OTH)
AF:
0.00662
AC:
14
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
29
58
88
117
146
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00433
Hom.:
2
Bravo
AF:
0.00386
Asia WGS
AF:
0.00231
AC:
8
AN:
3478
EpiCase
AF:
0.00605
EpiControl
AF:
0.00652

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Sep 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

TG: BP4, BP7 -

Jan 11, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Iodotyrosyl coupling defect Uncertain:1
Jan 12, 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. -

not specified Benign:1
Nov 07, 2016
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

TG-related disorder Benign:1
Jun 25, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as 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
BayesDel_noAF
Benign
-0.71
CADD
Benign
3.6
DANN
Benign
0.37
PhyloP100
-2.1
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs114436500; hg19: chr8-133880436; COSMIC: COSV99598294; API