rs72763296

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001128228.3(TPRN):​c.1261C>T​(p.Pro421Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00244 in 1,606,984 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P421R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0016 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0025 ( 4 hom. )

Consequence

TPRN
NM_001128228.3 missense

Scores

2
16

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 0.915

Publications

4 publications found
Variant links:
Genes affected
TPRN (HGNC:26894): (taperin) This locus encodes a sensory epithelial protein. It was defined by linkage analysis in three Pakistani families to lie between D9S1818 (centromeric) and D9SH6 (telomeric). Mutations at this locus have been associated with autosomal recessive deafness. [provided by RefSeq, Oct 2010]
TPRN Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 79
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004536718).
BP6
Variant 9-137199451-G-A is Benign according to our data. Variant chr9-137199451-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 377178.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00161 (246/152356) while in subpopulation NFE AF = 0.00256 (174/68016). AF 95% confidence interval is 0.00225. There are 0 homozygotes in GnomAd4. There are 109 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 4 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001128228.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPRN
NM_001128228.3
MANE Select
c.1261C>Tp.Pro421Ser
missense
Exon 1 of 4NP_001121700.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TPRN
ENST00000409012.6
TSL:1 MANE Select
c.1261C>Tp.Pro421Ser
missense
Exon 1 of 4ENSP00000387100.4
TPRN
ENST00000333046.8
TSL:2
c.655C>Tp.Pro219Ser
missense
Exon 1 of 3ENSP00000327617.4
TPRN
ENST00000541945.1
TSL:4
n.90+4653C>T
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.00162
AC:
246
AN:
152238
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000747
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00209
Gnomad ASJ
AF:
0.00173
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00256
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00138
AC:
322
AN:
232826
AF XY:
0.00136
show subpopulations
Gnomad AFR exome
AF:
0.000861
Gnomad AMR exome
AF:
0.000689
Gnomad ASJ exome
AF:
0.00145
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000202
Gnomad NFE exome
AF:
0.00257
Gnomad OTH exome
AF:
0.000527
GnomAD4 exome
AF:
0.00253
AC:
3681
AN:
1454628
Hom.:
4
Cov.:
34
AF XY:
0.00245
AC XY:
1774
AN XY:
723228
show subpopulations
African (AFR)
AF:
0.000720
AC:
24
AN:
33354
American (AMR)
AF:
0.00100
AC:
44
AN:
43942
Ashkenazi Jewish (ASJ)
AF:
0.00219
AC:
57
AN:
25994
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39392
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85482
European-Finnish (FIN)
AF:
0.000351
AC:
18
AN:
51214
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.00308
AC:
3413
AN:
1109382
Other (OTH)
AF:
0.00206
AC:
124
AN:
60106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
276
552
829
1105
1381
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
138
276
414
552
690
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00161
AC:
246
AN:
152356
Hom.:
0
Cov.:
34
AF XY:
0.00146
AC XY:
109
AN XY:
74506
show subpopulations
African (AFR)
AF:
0.000745
AC:
31
AN:
41596
American (AMR)
AF:
0.00209
AC:
32
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00173
AC:
6
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10628
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00256
AC:
174
AN:
68016
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
14
28
43
57
71
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00272
Hom.:
1
Bravo
AF:
0.00193
TwinsUK
AF:
0.00189
AC:
7
ALSPAC
AF:
0.00415
AC:
16
ESP6500AA
AF:
0.000456
AC:
2
ESP6500EA
AF:
0.00210
AC:
18
ExAC
AF:
0.00139
AC:
167
Asia WGS
AF:
0.000577
AC:
3
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
3
not provided (4)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0047
T
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.070
N
LIST_S2
Benign
0.55
T
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.0045
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L
PhyloP100
0.92
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-1.6
N
REVEL
Benign
0.029
Sift
Benign
0.093
T
Sift4G
Uncertain
0.060
T
Polyphen
0.99
D
Vest4
0.090
MVP
0.048
ClinPred
0.0096
T
GERP RS
2.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.056
gMVP
0.32
Mutation Taster
=97/3
polymorphism

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

Other links and lift over

dbSNP: rs72763296; hg19: chr9-140093903; COSMIC: COSV108135504; API