15-89669579-C-T

Position:

• chr15-89669579-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_002666.5(PLIN1):​c.692G>A​(p.Arg231Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,728 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. R231L) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000082 (0 hom.)
• Consequence: PLIN1 NM_002666.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.46

Genes affected

PLIN1 (HGNC:9076): (perilipin 1) The protein encoded by this gene coats lipid storage droplets in adipocytes, thereby protecting them until they can be broken down by hormone-sensitive lipase. The encoded protein is the major cAMP-dependent protein kinase substrate in adipocytes and, when unphosphorylated, may play a role in the inhibition of lipolysis. Alternatively spliced transcript variants varying in the 5' UTR, but encoding the same protein, have been found for this gene. [provided by RefSeq, Feb 2009]

ACMG classification

Verdict is Likely_benign. Variant got -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.12751141).
• BS2: High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PLIN1	NM_002666.5	c.692G>A	p.Arg231Gln	missense_variant	6/9	ENST00000300055.10	NP_002657.3
PLIN1	NM_001145311.2	c.692G>A	p.Arg231Gln	missense_variant	6/9		NP_001138783.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PLIN1	ENST00000300055.10	c.692G>A	p.Arg231Gln	missense_variant	6/9	1	NM_002666.5	ENSP00000300055.5
PLIN1	ENST00000430628.2	c.692G>A	p.Arg231Gln	missense_variant	6/9	5		ENSP00000402167.2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251272 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135836

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: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.00000821 AC: 12 AN: 1461728 Hom.: 0 Cov.: 33 AF XY: 0.00000688 AC XY: 5 AN XY: 727166

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000765

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000540

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

Alfa AF: 0.00000446 Hom.: 4

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.069
BayesDel_addAF	Benign	-0.56	T
BayesDel_noAF	Benign	-0.86
CADD	Benign	0.0020
DANN	Benign	0.72
DEOGEN2	Benign	0.057	T;T
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.0015	N
LIST_S2	Benign	0.63	.;T
M_CAP	Benign	0.0077	T
MetaRNN	Benign	0.13	T;T
MetaSVM	Benign	-0.95	T
MutationAssessor	Benign	-0.10	N;N
PrimateAI	Benign	0.18	T
PROVEAN	Benign	0.37	N;N
REVEL	Benign	0.017
Sift	Benign	0.49	T;T
Sift4G	Benign	0.90	T;T
Polyphen		0.013	B;B
Vest4		0.092
MutPred		0.51		Loss of MoRF binding (P = 0.0213);Loss of MoRF binding (P = 0.0213);
MVP		0.014
MPC		0.026
ClinPred		0.038	T
GERP RS		-4.7
Varity_R		0.024
gMVP		0.19

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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

Other links and lift over

dbSNP: rs114583540; hg19: chr15-90212810;