1-53909897-C-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_000792.7(DIO1):​c.682-34C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.516 in 1,607,938 control chromosomes in the GnomAD database, including 220,048 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as drug response (no stars).

Frequency

Genomes: 𝑓 0.45 ( 16505 hom., cov: 32)
Exomes 𝑓: 0.52 ( 203543 hom. )

Consequence

DIO1
NM_000792.7 intron

Scores

2

Clinical Significance

drug response no assertion criteria provided O:1

Conservation

PhyloP100: 0.0130
Variant links:
Genes affected
DIO1 (HGNC:2883): (iodothyronine deiodinase 1) The protein encoded by this gene belongs to the iodothyronine deiodinase family. It catalyzes the activation, as well as the inactivation of thyroid hormone by outer and inner ring deiodination, respectively. The activation reaction involves the conversion of the prohormone thyroxine (3,5,3',5'-tetraiodothyronine, T4), secreted by the thyroid gland, to the bioactive thyroid hormone (3,5,3'-triiodothyronine, T3) by 5'-deiodination. This protein provides most of the circulating T3, which is essential for growth, differentiation and basal metabolism in vertebrates. This protein is a selenoprotein, containing the rare amino acid selenocysteine (Sec) at its active site. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jun 2018]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.606 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DIO1NM_000792.7 linkuse as main transcriptc.682-34C>A intron_variant ENST00000361921.8 NP_000783.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DIO1ENST00000361921.8 linkuse as main transcriptc.682-34C>A intron_variant 1 NM_000792.7 ENSP00000354643 P1P49895-1

Frequencies

GnomAD3 genomes
AF:
0.446
AC:
67674
AN:
151844
Hom.:
16490
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.235
Gnomad AMI
AF:
0.257
Gnomad AMR
AF:
0.585
Gnomad ASJ
AF:
0.407
Gnomad EAS
AF:
0.472
Gnomad SAS
AF:
0.624
Gnomad FIN
AF:
0.551
Gnomad MID
AF:
0.380
Gnomad NFE
AF:
0.517
Gnomad OTH
AF:
0.429
GnomAD3 exomes
AF:
0.531
AC:
132485
AN:
249382
Hom.:
37035
AF XY:
0.533
AC XY:
71933
AN XY:
134954
show subpopulations
Gnomad AFR exome
AF:
0.233
Gnomad AMR exome
AF:
0.710
Gnomad ASJ exome
AF:
0.400
Gnomad EAS exome
AF:
0.488
Gnomad SAS exome
AF:
0.636
Gnomad FIN exome
AF:
0.540
Gnomad NFE exome
AF:
0.508
Gnomad OTH exome
AF:
0.522
GnomAD4 exome
AF:
0.523
AC:
761769
AN:
1455976
Hom.:
203543
Cov.:
29
AF XY:
0.526
AC XY:
381038
AN XY:
724736
show subpopulations
Gnomad4 AFR exome
AF:
0.216
Gnomad4 AMR exome
AF:
0.691
Gnomad4 ASJ exome
AF:
0.398
Gnomad4 EAS exome
AF:
0.440
Gnomad4 SAS exome
AF:
0.629
Gnomad4 FIN exome
AF:
0.541
Gnomad4 NFE exome
AF:
0.525
Gnomad4 OTH exome
AF:
0.493
GnomAD4 genome
AF:
0.446
AC:
67713
AN:
151962
Hom.:
16505
Cov.:
32
AF XY:
0.452
AC XY:
33550
AN XY:
74256
show subpopulations
Gnomad4 AFR
AF:
0.235
Gnomad4 AMR
AF:
0.586
Gnomad4 ASJ
AF:
0.407
Gnomad4 EAS
AF:
0.471
Gnomad4 SAS
AF:
0.625
Gnomad4 FIN
AF:
0.551
Gnomad4 NFE
AF:
0.517
Gnomad4 OTH
AF:
0.433
Alfa
AF:
0.496
Hom.:
28608
Bravo
AF:
0.435
Asia WGS
AF:
0.535
AC:
1860
AN:
3478

ClinVar

Significance: drug response
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Levothyroxine response Other:1
drug response, no assertion criteria providedresearchPharmacogenomics/Precision medicine lab, University of Petra-- the CC allele had the highest mean free T3 levels after levothyroxine replacement with decreasing concentrations for the CT then the TT genotypes. The CC was predictive of T3 dosage requirements

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
2.1
DANN
Benign
0.45

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

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

Other links and lift over

dbSNP: rs2235544; hg19: chr1-54375570; COSMIC: COSV59519232; COSMIC: COSV59519232; API