Genetic Variant PLIN3:p.Gln321* (chr19-4839536-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_005817.5(PLIN3):c.961C>T(p.Gln321*) variant causes a stop gained, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000264 in 1,515,252 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

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

Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

PLIN3
NM_005817.5 stop_gained, splice_region

Scores

Splicing: ADA: 0.9811

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.11

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:

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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 rank	MANE	Protein	UniProt
PLIN3	NM_005817.5 link	c.961C>T	p.Gln321*	stop_gained, splice_region_variant	Exon 8 of 8	ENST00000221957.9	NP_005808.3	O60664-1
PLIN3	NM_001164194.2 link	c.925C>T	p.Gln309*	stop_gained, splice_region_variant	Exon 8 of 8		NP_001157666.1	O60664-4
PLIN3	NM_001164189.2 link	c.961-3C>T		splice_region_variant, intron_variant	Intron 7 of 7		NP_001157661.1	O60664-3A0A140VJN8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PLIN3	ENST00000221957.9 link	c.961C>T	p.Gln321*	stop_gained, splice_region_variant	Exon 8 of 8	1	NM_005817.5	ENSP00000221957.3	O60664-1
PLIN3	ENST00000585479.5 link	c.961-3C>T		splice_region_variant, intron_variant	Intron 7 of 7	1		ENSP00000465596.1	O60664-3
PLIN3	ENST00000592528.5 link	c.925C>T	p.Gln309*	stop_gained, splice_region_variant	Exon 8 of 8	2		ENSP00000467803.1	O60664-4
PLIN3	ENST00000589163.5 link	c.532C>T	p.Gln178*	stop_gained, splice_region_variant	Exon 5 of 5	3		ENSP00000468476.1	K7ERZ3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00000574

AC:

AN:

174258

Hom.:

AF XY:

0.0000108

AC XY:

AN XY:

92512

show subpopulations

Gnomad AFR exome

AF:

0.0000691

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:

0.00000220

AC:

AN:

1363098

Hom.:

Cov.:

AF XY:

0.00000150

AC XY:

AN XY:

666682

show subpopulations

Gnomad4 AFR exome

AF:

0.0000656

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:

9.42e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152154

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000113

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000853

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.45

BayesDel_noAF

Pathogenic

0.60

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Uncertain

0.97

Vest4

0.81

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.98

dbscSNV1_RF

Pathogenic

0.95

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over