12-130345856-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_004764.5(PIWIL1):​c.294C>T​(p.Asp98=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000457 in 1,613,520 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00047 ( 0 hom. )

Consequence

PIWIL1
NM_004764.5 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.399
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.36).
BP6
Variant 12-130345856-C-T is Benign according to our data. Variant chr12-130345856-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3039186.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=0.399 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PIWIL1NM_004764.5 linkuse as main transcriptc.294C>T p.Asp98= synonymous_variant 4/21 ENST00000245255.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PIWIL1ENST00000245255.7 linkuse as main transcriptc.294C>T p.Asp98= synonymous_variant 4/211 NM_004764.5 P1Q96J94-1

Frequencies

GnomAD3 genomes
AF:
0.000316
AC:
48
AN:
151996
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000967
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
Gnomad ASJ
AF:
0.000866
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000338
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000338
AC:
85
AN:
251268
Hom.:
0
AF XY:
0.000331
AC XY:
45
AN XY:
135792
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00169
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000484
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000471
AC:
689
AN:
1461524
Hom.:
0
Cov.:
31
AF XY:
0.000459
AC XY:
334
AN XY:
727030
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.000291
Gnomad4 ASJ exome
AF:
0.00149
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000374
Gnomad4 NFE exome
AF:
0.000543
Gnomad4 OTH exome
AF:
0.000431
GnomAD4 genome
AF:
0.000316
AC:
48
AN:
151996
Hom.:
0
Cov.:
33
AF XY:
0.000350
AC XY:
26
AN XY:
74240
show subpopulations
Gnomad4 AFR
AF:
0.0000967
Gnomad4 AMR
AF:
0.00118
Gnomad4 ASJ
AF:
0.000866
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000338
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000640
Hom.:
0
Bravo
AF:
0.000506
EpiCase
AF:
0.000600
EpiControl
AF:
0.000652

ClinVar

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

Submissions by phenotype

PIWIL1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesAug 07, 2019This variant is classified as likely 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
-0.36
CADD
Benign
8.7
DANN
Benign
0.66

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs143665312; hg19: chr12-130830401; API