22-43928847-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_025225.3(PNPLA3):​c.444C>T​(p.Ile148=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,458,332 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PNPLA3
NM_025225.3 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.14
Variant links:
Genes affected
PNPLA3 (HGNC:18590): (patatin like phospholipase domain containing 3) The protein encoded by this gene is a triacylglycerol lipase that mediates triacylglycerol hydrolysis in adipocytes. The encoded protein, which appears to be membrane bound, may be involved in the balance of energy usage/storage in adipocytes. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP7
Synonymous conserved (PhyloP=-1.14 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PNPLA3NM_025225.3 linkuse as main transcriptc.444C>T p.Ile148= synonymous_variant 3/9 ENST00000216180.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PNPLA3ENST00000216180.8 linkuse as main transcriptc.444C>T p.Ile148= synonymous_variant 3/91 NM_025225.3 P1Q9NST1-1
PNPLA3ENST00000423180.2 linkuse as main transcriptc.432C>T p.Ile144= synonymous_variant 3/92 Q9NST1-2
PNPLA3ENST00000478713.1 linkuse as main transcriptn.478C>T non_coding_transcript_exon_variant 3/42
PNPLA3ENST00000406117.6 linkuse as main transcriptc.*76C>T 3_prime_UTR_variant, NMD_transcript_variant 3/102

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1458332
Hom.:
0
Cov.:
35
AF XY:
0.00000138
AC XY:
1
AN XY:
725734
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
1.2
DANN
Benign
0.59

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: rs738409; hg19: chr22-44324727; API