12-130346361-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_004764.5(PIWIL1):​c.317-9C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.163 in 1,600,438 control chromosomes in the GnomAD database, including 22,121 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.17 ( 2423 hom., cov: 33)
Exomes 𝑓: 0.16 ( 19698 hom. )

Consequence

PIWIL1
NM_004764.5 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.001682
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.0380
Variant links:
Genes affected
PIWIL1 (HGNC:9007): (piwi like RNA-mediated gene silencing 1) This gene encodes a member of the PIWI subfamily of Argonaute proteins, evolutionarily conserved proteins containing both PAZ and Piwi motifs that play important roles in stem cell self-renewal, RNA silencing, and translational regulation in diverse organisms. The encoded protein may play a role as an intrinsic regulator of the self-renewal capacity of germline and hematopoietic stem cells. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 12-130346361-C-T is Benign according to our data. Variant chr12-130346361-C-T is described in ClinVar as [Benign]. Clinvar id is 3060310.Status of the report is no_assertion_criteria_provided, 0 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.214 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PIWIL1NM_004764.5 linkuse as main transcriptc.317-9C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000245255.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PIWIL1ENST00000245255.7 linkuse as main transcriptc.317-9C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_004764.5 P1Q96J94-1

Frequencies

GnomAD3 genomes
AF:
0.171
AC:
26042
AN:
151974
Hom.:
2416
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.216
Gnomad AMI
AF:
0.0943
Gnomad AMR
AF:
0.113
Gnomad ASJ
AF:
0.201
Gnomad EAS
AF:
0.0932
Gnomad SAS
AF:
0.225
Gnomad FIN
AF:
0.158
Gnomad MID
AF:
0.177
Gnomad NFE
AF:
0.161
Gnomad OTH
AF:
0.173
GnomAD3 exomes
AF:
0.155
AC:
38025
AN:
245934
Hom.:
3255
AF XY:
0.161
AC XY:
21336
AN XY:
132788
show subpopulations
Gnomad AFR exome
AF:
0.215
Gnomad AMR exome
AF:
0.0758
Gnomad ASJ exome
AF:
0.205
Gnomad EAS exome
AF:
0.0815
Gnomad SAS exome
AF:
0.232
Gnomad FIN exome
AF:
0.153
Gnomad NFE exome
AF:
0.157
Gnomad OTH exome
AF:
0.169
GnomAD4 exome
AF:
0.162
AC:
234651
AN:
1448346
Hom.:
19698
Cov.:
30
AF XY:
0.164
AC XY:
118296
AN XY:
720288
show subpopulations
Gnomad4 AFR exome
AF:
0.219
Gnomad4 AMR exome
AF:
0.0819
Gnomad4 ASJ exome
AF:
0.209
Gnomad4 EAS exome
AF:
0.0865
Gnomad4 SAS exome
AF:
0.227
Gnomad4 FIN exome
AF:
0.152
Gnomad4 NFE exome
AF:
0.160
Gnomad4 OTH exome
AF:
0.166
GnomAD4 genome
AF:
0.171
AC:
26066
AN:
152092
Hom.:
2423
Cov.:
33
AF XY:
0.170
AC XY:
12657
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.216
Gnomad4 AMR
AF:
0.113
Gnomad4 ASJ
AF:
0.201
Gnomad4 EAS
AF:
0.0931
Gnomad4 SAS
AF:
0.225
Gnomad4 FIN
AF:
0.158
Gnomad4 NFE
AF:
0.161
Gnomad4 OTH
AF:
0.179
Alfa
AF:
0.162
Hom.:
2381
Bravo
AF:
0.167
Asia WGS
AF:
0.210
AC:
730
AN:
3478
EpiCase
AF:
0.154
EpiControl
AF:
0.159

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

PIWIL1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 11, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
1.7
DANN
Benign
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0017
dbscSNV1_RF
Benign
0.054
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: rs11060836; hg19: chr12-130830906; COSMIC: COSV55350213; COSMIC: COSV55350213; API