14-101561503-C-A

Variant names:

• chr14-101561503-C-A
• NM_001362.4:c.7C>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_001362.4(DIO3):​c.7C>A​(p.Arg3Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DIO3 NM_001362.4 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.190
• Publications: 0 publications found

Genes affected

DIO3 (HGNC:2885): (iodothyronine deiodinase 3) The protein encoded by this intronless gene belongs to the iodothyronine deiodinase family. It catalyzes the inactivation of thyroid hormone by inner ring deiodination of the prohormone thyroxine (T4) and the bioactive hormone 3,3',5-triiodothyronine (T3) to inactive metabolites, 3,3',5'-triiodothyronine (RT3) and 3,3'-diiodothyronine (T2), respectively. This enzyme is highly expressed in pregnant uterus, placenta, fetal and neonatal tissues, and thought to prevent premature exposure of developing fetal tissues to adult levels of thyroid hormones. It regulates circulating fetal thyroid hormone concentrations, and thus plays a critical role in mammalian development. Knockout mice lacking this gene exhibit abnormalities related to development and reproduction, and increased activity of this enzyme in infants with hemangiomas causes severe hypothyroidism. This protein is a selenoprotein, containing the rare selenocysteine (Sec) amino acid 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. [provided by RefSeq, May 2016]

DIO3OS (HGNC:20348): (DIO3 opposite strand upstream RNA) The mouse and human DIO3OS and DIO3 (MIM 601038) genes overlap and are transcribed in opposite directions. The mouse Dio3 gene is imprinted from the paternal allele during fetal development, suggesting that DIO3OS is a noncoding gene that may have a role in maintaining monoallelic expression of DIO3 (Hernandez et al., 2004 [PubMed 14962667]).[supplied by OMIM, Mar 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.046343327).
• BP6: Variant 14-101561503-C-A is Benign according to our data. Variant chr14-101561503-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 3272086.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001362.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DIO3	NM_001362.4	MANE Select	c.7C>A	p.Arg3Ser	missense	Exon 1 of 1	NP_001353.4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DIO3	ENST00000510508.5	TSL:6 MANE Select	c.7C>A	p.Arg3Ser	missense	Exon 1 of 1	ENSP00000427336.3	P55073
	DIO3	ENST00000700173.1		c.-312-201C>A		intron	N/A	ENSP00000514840.1	A0A8V8TPY2
	DIO3OS	ENST00000700197.1		n.1129-2669G>T		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1447820 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 718792

African (AFR) AF: 0.00 AC: 0 AN: 33254

American (AMR) AF: 0.00 AC: 0 AN: 43210

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25414

East Asian (EAS) AF: 0.00 AC: 0 AN: 39348

South Asian (SAS) AF: 0.00 AC: 0 AN: 84618

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51870

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5704

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1104682

Other (OTH) AF: 0.00 AC: 0 AN: 59720

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.66
CADD	Benign	15
DANN	Benign	0.91
DEOGEN2	Benign	0.088	T
Eigen	Benign	-0.99
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.21	N
LIST_S2	Benign	0.33	T
MetaRNN	Benign	0.046	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.55	N
PhyloP100		-0.19
PrimateAI	Uncertain	0.68	T
PROVEAN	Benign	0.010	N
REVEL	Benign	0.019
Sift	Benign	0.26	T
Sift4G	Benign	0.31	T
Vest4		0.052
MutPred		0.24		Gain of catalytic residue at P2 (P = 5e-04)
MVP		0.11
MPC		1.1
ClinPred		0.049	T
GERP RS		-0.75
PromoterAI		-0.0095	Neutral
Varity_R		0.16
Mutation Taster		=93/7	polymorphism

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

Other links and lift over

hg19: chr14-102027840;