11-823723-G-T

Position:

chr11-823723-G-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The ENST00000336615.9(PNPLA2):c.787G>T(p.Ala263Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000131 in 1,608,158 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A263T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

PNPLA2
ENST00000336615.9 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.04

Variant links:

Genes affected

PNPLA2 (HGNC:30802): (patatin like phospholipase domain containing 2) This gene encodes an enzyme which catalyzes the first step in the hydrolysis of triglycerides in adipose tissue. Mutations in this gene are associated with neutral lipid storage disease with myopathy. [provided by RefSeq, Jul 2010]

PNPLA2 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07367185).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0000919 (14/152284) while in subpopulation AFR AF= 0.000337 (14/41548). AF 95% confidence interval is 0.000204. There are 0 homozygotes in gnomad4. There are 6 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PNPLA2	NM_020376.4 linkuse as main transcript	c.787G>T	p.Ala263Ser	missense_variant	7/10	ENST00000336615.9	NP_065109.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PNPLA2	ENST00000336615.9 linkuse as main transcript	c.787G>T	p.Ala263Ser	missense_variant	7/10	1	NM_020376.4	ENSP00000337701	P1	Q96AD5-1
	ENST00000532946.1 linkuse as main transcript	n.447C>A		non_coding_transcript_exon_variant	3/3	5

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000172

AC:

AN:

232240

Hom.:

AF XY:

0.0000236

AC XY:

AN XY:

127252

show subpopulations

Gnomad AFR exome

AF:

0.000295

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000481

AC:

AN:

1455874

Hom.:

Cov.:

AF XY:

0.00000691

AC XY:

AN XY:

723840

show subpopulations

Gnomad4 AFR exome

AF:

0.000180

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152284

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74474

show subpopulations

Gnomad4 AFR

AF:

0.000337

Gnomad4 AMR

AF:

0.00

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:

0.0000945

ExAC

AF:

0.0000166

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Neutral lipid storage myopathy

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jun 04, 2022	Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. ClinVar contains an entry for this variant (Variation ID: 962772). This variant has not been reported in the literature in individuals affected with PNPLA2-related conditions. This variant is present in population databases (rs569211679, gnomAD 0.04%). This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 263 of the PNPLA2 protein (p.Ala263Ser). -
Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Jan 13, 2023	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.33

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.087

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.32

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.71

M_CAP

Benign

0.056

MetaRNN

Benign

0.074

MetaSVM

Benign

-0.70

MutationAssessor

Benign

1.4

MutationTaster

Benign

0.74

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.12

REVEL

Benign

0.16

Sift

Benign

0.31

Sift4G

Benign

0.43

Polyphen

0.0020

Vest4

0.32

MVP

0.60

MPC

0.20

ClinPred

0.067

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.041

gMVP

0.27

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over