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rs727503520

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_001128228.3(TPRN):c.2057C>T(p.Pro686Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000558 in 1,612,898 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000061 ( 0 hom. )

Consequence

TPRN
NM_001128228.3 missense

Scores

2
15

Clinical Significance

Likely benign criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 0.704
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08209035).
BP6
Variant 9-137192275-G-A is Benign according to our data. Variant chr9-137192275-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 165576.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr9-137192275-G-A is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPRNNM_001128228.3 linkuse as main transcriptc.2057C>T p.Pro686Leu missense_variant 3/4 ENST00000409012.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPRNENST00000409012.6 linkuse as main transcriptc.2057C>T p.Pro686Leu missense_variant 3/41 NM_001128228.3 P1Q4KMQ1-1
TPRNENST00000477345.1 linkuse as main transcriptn.2778C>T non_coding_transcript_exon_variant 2/31
TPRNENST00000333046.8 linkuse as main transcriptc.1451C>T p.Pro484Leu missense_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000241
AC:
6
AN:
249356
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135400
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000609
AC:
89
AN:
1460682
Hom.:
0
Cov.:
31
AF XY:
0.0000482
AC XY:
35
AN XY:
726656
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000674
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152216
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Autosomal recessive nonsyndromic hearing loss 79 Uncertain:1
Uncertain significance, no assertion criteria providedresearchDivision of Human Genetics, Children's Hospital of PhiladelphiaNov 16, 2015- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineOct 06, 2016p.Pro686Leu in exon 3 of TPRN: This variant is not expected to have clinical sig nificance due to a lack of conservation across species, including mammals. Of no te, at least five mammalian species have a leucine (Leu) at this position despit e high nearby amino acid conservation. In addition, computational prediction too ls do not suggest a high likelihood of impact to the protein. It has been identi fied in 2/16500 South Asian chromosomes by the Exome Aggregation Consortium (ExA C, http://exac.broadinstitute.org). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.43
Cadd
Benign
13
Dann
Uncertain
0.98
Eigen
Benign
-0.79
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.080
N
LIST_S2
Benign
0.51
T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.082
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-2.1
N;D
REVEL
Benign
0.055
Sift
Uncertain
0.0020
D;D
Sift4G
Benign
0.14
T;T
Polyphen
0.035
.;B
Vest4
0.15
MutPred
0.26
.;Loss of glycosylation at P686 (P = 0.0156);
MVP
0.15
ClinPred
0.094
T
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.047
gMVP
0.20

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: rs727503520; hg19: chr9-140086727; API