19-4839326-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_005817.5(PLIN3):c.1171C>G(p.Arg391Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,834 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R391H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

PLIN3
NM_005817.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.39

Variant links:

Genes affected

PLIN3 (HGNC:16893): (perilipin 3) Mannose 6-phophate receptors (MPRs) deliver lysosomal hydrolase from the Golgi to endosomes and then return to the Golgi complex. The protein encoded by this gene interacts with the cytoplasmic domains of both cation-independent and cation-dependent MPRs, and is required for endosome-to-Golgi transport. This protein also binds directly to the GTPase RAB9 (RAB9A), a member of the RAS oncogene family. The interaction with RAB9 has been shown to increase the affinity of this protein for its cargo. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Aug 2009]

PLIN3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
PLIN3	NM_005817.5 linkuse as main transcript	c.1171C>G	p.Arg391Gly	missense_variant	8/8	ENST00000221957.9
PLIN3	NM_001164189.2 linkuse as main transcript	c.1168C>G	p.Arg390Gly	missense_variant	8/8
PLIN3	NM_001164194.2 linkuse as main transcript	c.1135C>G	p.Arg379Gly	missense_variant	8/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PLIN3	ENST00000221957.9 linkuse as main transcript	c.1171C>G	p.Arg391Gly	missense_variant	8/8	1	NM_005817.5	P3	O60664-1
PLIN3	ENST00000585479.5 linkuse as main transcript	c.1168C>G	p.Arg390Gly	missense_variant	8/8	1		A1	O60664-3
PLIN3	ENST00000592528.5 linkuse as main transcript	c.1135C>G	p.Arg379Gly	missense_variant	8/8	2			O60664-4
PLIN3	ENST00000589163.5 linkuse as main transcript	c.745C>G	p.Arg249Gly	missense_variant	5/5	3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00316

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250682

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135542

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.00000884

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461720

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727140

show subpopulations

Gnomad4 AFR exome

AF:

0.000149

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152114

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000151

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 26, 2022

The c.1171C>G (p.R391G) alteration is located in exon 8 (coding exon 7) of the PLIN3 gene. This alteration results from a C to G substitution at nucleotide position 1171, causing the arginine (R) at amino acid position 391 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.089

BayesDel_noAF

Benign

-0.37

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.21

T;.;.

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.74

T;T;T

M_CAP

Benign

0.033

MetaRNN

Uncertain

0.55

D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Pathogenic

3.2

M;.;.

MutationTaster

Benign

0.95

N;N;N

PrimateAI

Benign

0.28

PROVEAN

Pathogenic

-5.7

D;.;.

REVEL

Benign

0.17

Sift

Uncertain

0.0030

D;.;.

Sift4G

Uncertain

0.0070

D;D;D

Polyphen

0.93

P;.;P

Vest4

0.32

MutPred

0.69

Loss of helix (P = 0.0444);.;.;

MVP

0.32

MPC

0.24

ClinPred

0.86

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.49

gMVP

0.46

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.

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