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. 2021 May 27;185(8):2417–2433. doi: 10.1002/ajmg.a.62347

TABLE 2.

TSPEAR variant ACMG classification

Variant Variant interpretation Sequencing method References
Patient Gene Nucleotide change Amino acid Zygosity CADD score GnomAD AF ClinVar clinical significance ACMG classification Evidence
1 TSPEAR c.533C>T p.Pro178Leu Hom 17.86 0.00003668 NA VUS PM2, PP3, BP5 Hearing loss panel Newly reported
TMPRSS3 c.1204G>A p.Gly402Arg Hom 31 0 NA VUS PM2, PP3, BP5
2 TSPEAR c.1163T>C p.Val388Ala Hom 33 0 NA VUS PM2, PP3, BP5 Hearing loss panel Newly reported
TMPRSS3 c.1211C>T p.Pro404Leu Hom 26.1 0.00001193 Pathogenic Likely pathogenic PP1, PM2, PM3, PP3, PM1, BP5
3 TSPEAR c.1726_1728delGTCinsTTa p.Val576Leufs*38 Hom 33 0 Likely pathogenic Pathogenic PVS1, PM2, PP3 WES Delmaghani et al. (2012)
4 TSPEAR c.1566G>A p.Pro522Pro Het 33 0.00007454 NA VUS PM2, PM3, PP3 Hearing loss panel Sloan‐Heggen et al. (2016)
TSPEAR c.1676_1677delAT p.Tyr559Cysfs*134 Het 31 0 Pathogenic/Likely pathogenic Pathogenic PVS1, PM2, PP3
5 TSPEAR c.38delT p.Leu13Argfs*38 Het 24.6 0.00008334 NA Pathogenic PVS1, PM2, PM3, PP3, BP5 Hearing loss panel Newly reported
TSPEAR c.589C>T p.Arg197* Het 36 0.000305 Conflicting Pathogenic PVS1, PM2, PM3, PP3, BP5
GJB2 c.35delG p.Gly12Valfs*2 Het 25.3 0.006188 Pathogenic Pathogenic PVS1, PS3, PS4, PM2, PP1‐S, PP3, BP5
GJB6 del(GJB6‐D13S1854) NA Het NA NA Pathogenic Pathogenic PVS1, PS3, PS4, PP1‐S, PM2, BP5
6 TSPEAR c.1915G>A p.Asp639Asn Het 28.2 0.002251 Conflicting VUS PM2, PM3, PP3, BS2 WES Newly reported
TSPEAR c.589C>T p.Arg197* Het 36 0.000305 Conflicting Pathogenic PVS1, PM2, PP3
7 TSPEAR c.1915G>A p.Asp639Asn Het 28.2 0.002251 Conflicting VUS PM2, PP3, BS2 WES Newly reported
TSPEAR c.1754G>T p.Ser585Ile Het 25.6 0.00006734 Uncertain significance VUS PM2, PP3
8 TSPEAR c.589C>T p.Arg197* Het 36 0.000305 Conflicting Pathogenic PVS1, PM2, PM3, PP3 WES Newly reported
TSPEAR c.83‐13708_1566+248del NA Het NA NA NA Pathogenic PVS1, PM2, PM3, PP3
9 TSPEAR c.1574G>A p.Gly525Asp Het 24.2 0.00003199 NA VUS PM2, PM3, PP3 WES Newly reported
TSPEAR c.543‐1G>A NA Het 23.9 0.000007119 NA Pathogenic PVS1, PM2, PP3
10 TSPEAR c.942C>G p.Tyr314* Het 36 0 Likely pathogenic Pathogenic PVS1, PM2, PP3 WES Newly reported
TSPEAR c.1469T>A p.Leu490Gln Het 29.7 0.00005569 Uncertain significance VUS PM2, PM3, PP3
11 TSPEAR c.1726_1728delGTCinsTT p.Val576Leufs*38 Hom 33 0 Likely pathogenic Pathogenic PVS1, PM2, PP3 WES Peled et al. (2016)
12 TSPEAR c.1726_1728delGTCinsTT p.Val576Leufs*38 Het 33 0 Likely pathogenic Pathogenic PVS1, PM2, PP3 WES Peled et al. (2016)
TSPEAR c.454_457delCTGG p.Leu152Trpfs*29 Het 23.3 0.000004063 Pathogenic Pathogenic PVS1, PM2, PP3
13 TSPEAR c.1852T>A p.Tyr618Asn Het 32 0.0000199 Pathogenic VUS PM2, PP3 WES Peled et al. (2016)
TSPEAR c.1915G>A p.Asp639Asn Het 28.2 0.002251 Conflicting VUS PM2, PP3, BS2
14 TSPEAR c.240T>G p.Cys80Trp Het 23.3 0 NA VUS PM2, PM3, PP3 Ectodermal dysplasia panel; Sanger sequencing Newly reported
TSPEAR c.633+2C>A NA Het 22.7 0.000004001 NA Pathogenic PVS1, PM2, PP3
15 TSPEAR c.1505delA p.Lys502Argfs*67 Hom 18.1 0.00001592 NA Pathogenic PVS1, PM2, PP3 SNP array; Sanger sequencing Newly reported
16 TSPEAR c.1726_1728delinsTT p.Val576Leufs*38 Het 33 0 Likely pathogenic Pathogenic PVS1, PM2, PM3, PP3 WES Newly reported
TSPEAR c.589C>T p.Arg197* Het 36 0.000305 Conflicting Pathogenic PVS1, PM2, PP3, PM3
ATP1A3 c.2767G>A p.Asp923Asn Het 23.8 0 Pathogenic Likely pathogenic PS1, PM1, PM2, PP3
17 TSPEAR c.1915G>A p.Asp639Asn Het 28.2 0.002251 Conflicting VUS PM2, PP3, BS2 GenoDENT: dental anomalies panel; Sanger sequencing Newly reported
TSPEAR c.1331G>A p.Arg444Gln Het 28.5 0.00008862 NA VUS PM2, PP3
18 TSPEAR c.1663C>T p.Gln555* Het 39 0 NA Pathogenic PVS1, PM2, PM3, PP3 GenoDENT: dental anomalies panel; Sanger sequencing Newly reported
TSPEAR c.1899dup p.Thr634Hisfs*60 Het 34 0 NA Pathogenic PVS1, PM2, PM3, PP3
19 TSPEAR c.1726_1728delGTCinsTT p.Val576Leufs*38 Hom 33 0 Likely pathogenic Pathogenic PVS1, PM2, PP3 WES Du et al. (2018)
20 TSPEAR c. 1877T>C p.Phe626Ser Hom 28.5 0.0001401 NA VUS PM2, PP3 WES Du et al. (2018)
21 TSPEAR c.1528C>T p.Arg510* Het 37 0.0003256 Uncertain significance Pathogenic PVS1, PM2, PP3 WES Song et al. (2020)
TSPEAR c.1330C>T p.Arg444Trp Het 25.8 0.00001595 Uncertain significance VUS PM2, PM3, PP3

Note: All variants in this study were classified according to American College of Medical Genetics (ACMG) 2015 criteria. Classifications are shown here, along with the evidence used to support each classification such as combined annotation dependent depletion (CADD) score and genome aggregation database (GnomAD) allele frequency. While numerous suspected pathogenic TSPEAR variants have been reported in the literature, these studies did not report ACMG scoring criteria. To provide a means of comparing newly reported TSPEAR variants to published TSPEAR variants, these published variants have been scored here using the available evidence. ClinVar accessed January 12, 2021, GnomAD v2.1.1 accessed January 13, 2021.

Abbreviations: AF, allele frequency; CADD, combined annotation dependent depletion; del, deletion; delins, deletion/insertion; dup, duplication; GnomAD, genome aggregation database; NA, not available; VUS, variant of uncertain significance.

a

Variants for individual 3 were originally reported as homozygous c.1726G>T and c.1728delC variants in cis, which can alternately be reported as c.1726_1728delGTCinsTT (p.Val576Leufs*38).