rs569064196

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_025225.3(PNPLA3):​c.125T>A​(p.Met42Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,428,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M42R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

PNPLA3
NM_025225.3 missense

Scores

1
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.36

Publications

0 publications found
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 was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.037658274).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025225.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNPLA3
NM_025225.3
MANE Select
c.125T>Ap.Met42Lys
missense
Exon 1 of 9NP_079501.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNPLA3
ENST00000216180.8
TSL:1 MANE Select
c.125T>Ap.Met42Lys
missense
Exon 1 of 9ENSP00000216180.3Q9NST1-1
PNPLA3
ENST00000862822.1
c.125T>Ap.Met42Lys
missense
Exon 1 of 9ENSP00000532881.1
PNPLA3
ENST00000862819.1
c.125T>Ap.Met42Lys
missense
Exon 1 of 9ENSP00000532878.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.00e-7
AC:
1
AN:
1428676
Hom.:
0
Cov.:
31
AF XY:
0.00000141
AC XY:
1
AN XY:
710774
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30618
American (AMR)
AF:
0.00
AC:
0
AN:
43214
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25370
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37228
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
38734
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5666
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1104526
Other (OTH)
AF:
0.0000168
AC:
1
AN:
59508
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
0.014
DANN
Benign
0.88
DEOGEN2
Benign
0.047
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.31
T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.038
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
0.17
N
PhyloP100
-1.4
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
0.060
N
REVEL
Benign
0.21
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.028
B
Vest4
0.13
MutPred
0.62
Loss of stability (P = 0.0446)
MVP
0.29
MPC
0.17
ClinPred
0.035
T
GERP RS
-4.2
PromoterAI
-0.096
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.16
gMVP
0.51
Mutation Taster
=72/28
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs569064196; hg19: chr22-44319916; API