chr2-1413472-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001206744.2(TPO):​c.-75A>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.565 in 162,578 control chromosomes in the GnomAD database, including 26,357 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.57 ( 24986 hom., cov: 33)
Exomes 𝑓: 0.51 ( 1371 hom. )

Consequence

TPO
NM_001206744.2 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.810
Variant links:
Genes affected
TPO (HGNC:12015): (thyroid peroxidase) This gene encodes a membrane-bound glycoprotein. The encoded protein acts as an enzyme and plays a central role in thyroid gland function. The protein functions in the iodination of tyrosine residues in thyroglobulin and phenoxy-ester formation between pairs of iodinated tyrosines to generate the thyroid hormones, thyroxine and triiodothyronine. Mutations in this gene are associated with several disorders of thyroid hormonogenesis, including congenital hypothyroidism, congenital goiter, and thyroid hormone organification defect IIA. Multiple transcript variants encoding distinct isoforms have been identified for this gene, but the full-length nature of some variants has not been determined. [provided by RefSeq, May 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.95).
BP6
Variant 2-1413472-A-G is Benign according to our data. Variant chr2-1413472-A-G is described in ClinVar as [Benign]. Clinvar id is 331215.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.654 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TPONM_001206744.2 linkuse as main transcriptc.-75A>G 5_prime_UTR_variant 1/17 ENST00000329066.9 NP_001193673.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TPOENST00000329066.9 linkuse as main transcriptc.-75A>G 5_prime_UTR_variant 1/171 NM_001206744.2 ENSP00000329869 P1P07202-1
ENST00000650512.1 linkuse as main transcriptn.647-3725T>C intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.569
AC:
86452
AN:
151944
Hom.:
24955
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.636
Gnomad AMI
AF:
0.378
Gnomad AMR
AF:
0.664
Gnomad ASJ
AF:
0.516
Gnomad EAS
AF:
0.653
Gnomad SAS
AF:
0.650
Gnomad FIN
AF:
0.563
Gnomad MID
AF:
0.478
Gnomad NFE
AF:
0.502
Gnomad OTH
AF:
0.550
GnomAD4 exome
AF:
0.510
AC:
5362
AN:
10516
Hom.:
1371
Cov.:
0
AF XY:
0.508
AC XY:
2698
AN XY:
5316
show subpopulations
Gnomad4 AFR exome
AF:
0.663
Gnomad4 AMR exome
AF:
0.545
Gnomad4 ASJ exome
AF:
0.589
Gnomad4 EAS exome
AF:
0.600
Gnomad4 SAS exome
AF:
0.700
Gnomad4 FIN exome
AF:
0.500
Gnomad4 NFE exome
AF:
0.502
Gnomad4 OTH exome
AF:
0.475
GnomAD4 genome
AF:
0.569
AC:
86545
AN:
152062
Hom.:
24986
Cov.:
33
AF XY:
0.574
AC XY:
42672
AN XY:
74320
show subpopulations
Gnomad4 AFR
AF:
0.636
Gnomad4 AMR
AF:
0.665
Gnomad4 ASJ
AF:
0.516
Gnomad4 EAS
AF:
0.653
Gnomad4 SAS
AF:
0.649
Gnomad4 FIN
AF:
0.563
Gnomad4 NFE
AF:
0.502
Gnomad4 OTH
AF:
0.551
Alfa
AF:
0.516
Hom.:
20431
Bravo
AF:
0.577
Asia WGS
AF:
0.649
AC:
2253
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Deficiency of iodide peroxidase Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.95
CADD
Benign
1.8
DANN
Benign
0.64

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: rs2071403; hg19: chr2-1417244; COSMIC: COSV61096929; COSMIC: COSV61096929; API