14-81108343-TTCTC-TTCTCTCTCTCTC

Variant names:

• chr14-81108343-T-TTCTCTCTC
• rs3837640
• NM_000369.5:c.615-26_615-19dupCTCTCTCT

Variant summary

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

The NM_000369.5(TSHR):​c.615-26_615-19dupCTCTCTCT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000634 in 1,262,800 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: 0)
  • Exomes 𝑓: 0.0000063 (0 hom.)
• Consequence: TSHR NM_000369.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.247
• Publications: 3 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]

TSHR Gene-Disease associations (from GenCC):

• familial gestational hyperthyroidism

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
• hypothyroidism due to TSH receptor mutations

  Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
• familial hyperthyroidism due to mutations in TSH receptor

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
• athyreosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• thyroid hypoplasia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000284959 (HGNC:58172):

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TSHR	NM_000369.5	MANE Select	c.615-26_615-19dupCTCTCTCT		intron	N/A	NP_000360.2
	TSHR	NM_001142626.3		c.615-26_615-19dupCTCTCTCT		intron	N/A	NP_001136098.1
	TSHR	NM_001018036.3		c.615-26_615-19dupCTCTCTCT		intron	N/A	NP_001018046.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TSHR	ENST00000298171.7	TSL:1 MANE Select	c.615-32_615-31insTCTCTCTC		intron	N/A	ENSP00000298171.2
	TSHR	ENST00000554435.1	TSL:1	c.615-32_615-31insTCTCTCTC		intron	N/A	ENSP00000450549.1
	TSHR	ENST00000342443.10	TSL:1	c.615-32_615-31insTCTCTCTC		intron	N/A	ENSP00000340113.6

Frequencies

GnomAD3 genomes Cov.: 0

GnomAD2 exomes AF: 0.00000518 AC: 1 AN: 193136 AF XY: 0.00000967

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: 0.0000113

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000634 AC: 8 AN: 1262800 Hom.: 0 Cov.: 24 AF XY: 0.0000110 AC XY: 7 AN XY: 635594

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 29480

American (AMR) AF: 0.00 AC: 0 AN: 42364

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23748

East Asian (EAS) AF: 0.00 AC: 0 AN: 38352

South Asian (SAS) AF: 0.0000128 AC: 1 AN: 78228

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50830

Middle Eastern (MID) AF: 0.000240 AC: 1 AN: 4164

European-Non Finnish (NFE) AF: 0.00000637 AC: 6 AN: 942626

Other (OTH) AF: 0.00 AC: 0 AN: 53008

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000000102751), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 0

Alfa AF: 0.00 Hom.: 1613

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.25

Splicing

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

Other links and lift over

dbSNP: rs3837640; hg19: chr14-81574687;