14-80955699-C-CTGCA

Variant names:

• chr14-80955699-C-CTGCA
• rs773584994
• NM_000369.5:c.20_23dupTGCA

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_000369.5(TSHR):​c.20_23dupTGCA​(p.Gln8HisfsTer55) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000137 in 1,461,796 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: TSHR NM_000369.5 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.59
• Publications: 2 publications found

Genes affected

TSHR (HGNC:12373): (thyroid stimulating hormone receptor) The protein encoded by this gene is a membrane protein and a major controller of thyroid cell metabolism. The encoded protein is a receptor for thyrothropin and thyrostimulin, and its activity is mediated by adenylate cyclase. Defects in this gene are a cause of several types of hyperthyroidism. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

CEP128 (HGNC:20359): (centrosomal protein 128) Involved in protein localization. Located in centriole and spindle pole. Part of centriolar subdistal appendage. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 102 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000369.5. 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
	TSHR	NM_000369.5	MANE Select	c.20_23dupTGCA	p.Gln8HisfsTer55	frameshift	Exon 1 of 10	NP_000360.2	P16473-1
	TSHR	NM_001142626.3		c.20_23dupTGCA	p.Gln8HisfsTer55	frameshift	Exon 1 of 9	NP_001136098.1	P16473-3
	TSHR	NM_001018036.3		c.20_23dupTGCA	p.Gln8HisfsTer55	frameshift	Exon 1 of 9	NP_001018046.1	P16473-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TSHR	ENST00000298171.7	TSL:1 MANE Select	c.20_23dupTGCA	p.Gln8HisfsTer55	frameshift	Exon 1 of 10	ENSP00000298171.2	P16473-1
	TSHR	ENST00000554435.1	TSL:1	c.20_23dupTGCA	p.Gln8HisfsTer55	frameshift	Exon 1 of 9	ENSP00000450549.1	P16473-3
	TSHR	ENST00000342443.10	TSL:1	c.20_23dupTGCA	p.Gln8HisfsTer55	frameshift	Exon 1 of 9	ENSP00000340113.6	P16473-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251276 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: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461796 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727204

African (AFR) AF: 0.00 AC: 0 AN: 33470

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5744

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111980

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 33

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		3.6
Mutation Taster		=3/197	disease causing (fs/PTC)

Splicing

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

Other links and lift over

dbSNP: rs773584994; hg19: chr14-81422043;