6-150369060-C-G

Variant names:

• chr6-150369060-C-G
• rs769810415
• NM_203395.3:c.29C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_203395.3(IYD):​c.29C>G​(p.Ala10Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A10V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: IYD NM_203395.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.44
• Publications: 3 publications found

Genes affected

IYD (HGNC:21071): (iodotyrosine deiodinase) This gene encodes an enzyme that catalyzes the oxidative NADPH-dependent deiodination of mono- and diiodotyrosine, which are the halogenated byproducts of thyroid hormone production. The N-terminus of the protein functions as a membrane anchor. Mutations in this gene cause congenital hypothyroidism due to dyshormonogenesis type 4, which is also referred to as deiodinase deficiency, or iodotyrosine dehalogenase deficiency, or thyroid hormonogenesis type 4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

IYD Gene-Disease associations (from GenCC):

• thyroid dyshormonogenesis 4

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• familial thyroid dyshormonogenesis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_203395.3. 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
	IYD	NM_203395.3	MANE Select	c.29C>G	p.Ala10Gly	missense	Exon 1 of 5	NP_981932.1	Q6PHW0-1
	IYD	NM_001164694.2		c.29C>G	p.Ala10Gly	missense	Exon 1 of 6	NP_001158166.1	Q6PHW0-4
	IYD	NM_001164695.2		c.29C>G	p.Ala10Gly	missense	Exon 1 of 6	NP_001158167.1	Q6PHW0-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IYD	ENST00000344419.8	TSL:1 MANE Select	c.29C>G	p.Ala10Gly	missense	Exon 1 of 5	ENSP00000343763.4	Q6PHW0-1
	IYD	ENST00000229447.9	TSL:1	c.29C>G	p.Ala10Gly	missense	Exon 1 of 6	ENSP00000229447.5	Q6PHW0-4
	IYD	ENST00000392255.7	TSL:1	c.29C>G	p.Ala10Gly	missense	Exon 1 of 6	ENSP00000376084.3	C9JXJ9

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251368 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461852 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727234

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111982

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 31

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.050	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.030	T
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.20
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.76	T
M_CAP	Benign	0.034	D
MetaRNN	Uncertain	0.50	T
MetaSVM	Benign	-0.37	T
MutationAssessor	Uncertain	2.4	M
PhyloP100		3.4
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-0.51	N
REVEL	Benign	0.18
Sift	Benign	0.24	T
Sift4G	Benign	0.35	T
Polyphen		0.049	B
Vest4		0.62
MutPred		0.37		Loss of sheet (P = 0.0817)
MVP		0.83
MPC		0.075
ClinPred		0.40	T
GERP RS		4.1
PromoterAI		-0.15	Neutral
Varity_R		0.088
gMVP		0.23
Mutation Taster		=72/28	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.20		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.20		Position offset: -5

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

Other links and lift over

dbSNP: rs769810415; hg19: chr6-150690196;