chr6-36270515-C-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_001374623.1(PNPLA1):ā€‹c.56C>Gā€‹(p.Ser19Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000000715 in 1,399,224 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 7.1e-7 ( 0 hom. )

Consequence

PNPLA1
NM_001374623.1 missense

Scores

12
6
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 5.41
Variant links:
Genes affected
PNPLA1 (HGNC:21246): (patatin like phospholipase domain containing 1) The protein encoded by this gene belongs to the patatin-like phospholipase (PNPLA) family, which is characterized by the presence of a highly conserved patatin domain. PNPLA family members have diverse lipolytic and acyltransferase activities, and are key elements in lipid metabolism. While other members of this family have been well characterized, the function of this gene remained an enigma. However, recent studies show that this gene is expressed in the skin epidermal keratinocytes, and has a role in glycerophospholipid metabolism in the cutaneous barrier. Consistent with these observations, mutations in this gene are associated with ichthyosis in human (autosomal recessive congenital ichthyoses, ARCI) and dog. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.907
PP5
Variant 6-36270515-C-G is Pathogenic according to our data. Variant chr6-36270515-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 633796.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PNPLA1NM_001374623.1 linkuse as main transcriptc.56C>G p.Ser19Trp missense_variant 1/9 ENST00000636260.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PNPLA1ENST00000636260.2 linkuse as main transcriptc.56C>G p.Ser19Trp missense_variant 1/95 NM_001374623.1 A2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.15e-7
AC:
1
AN:
1399224
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
690134
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:
9.27e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Autosomal recessive congenital ichthyosis 10 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingUitto Lab, Thomas Jefferson UniversityJun 08, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.19
CADD
Pathogenic
28
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.54
.;D
Eigen
Pathogenic
0.69
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Pathogenic
0.39
D
MetaRNN
Pathogenic
0.91
D;D
MetaSVM
Uncertain
0.49
D
MutationAssessor
Pathogenic
3.2
.;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-4.7
D;D
REVEL
Pathogenic
0.80
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
.;D
Vest4
0.78
MutPred
0.72
Loss of disorder (P = 2e-04);Loss of disorder (P = 2e-04);
MVP
0.94
MPC
0.92
ClinPred
1.0
D
GERP RS
4.4
Varity_R
0.81

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs1373230987; hg19: chr6-36238292; API