Variant 4-83596883-A-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_032717.5(GPAT3):c.880A>C(p.Lys294Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000223 in 1,602,036 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00024 ( 1 hom. )

Consequence

GPAT3
NM_032717.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.65

Variant links:

Genes affected

GPAT3 (HGNC:28157): (glycerol-3-phosphate acyltransferase 3) This gene encodes a member of the lysophosphatidic acid acyltransferase protein family. The encoded protein is an enzyme which catalyzes the conversion of glycerol-3-phosphate to lysophosphatidic acid in the synthesis of triacylglycerol. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jan 2012]

GPAT3 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	UniProt
GPAT3	NM_032717.5 linkuse as main transcript	c.880A>C	p.Lys294Gln	missense_variant	8/12	ENST00000264409.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
GPAT3	ENST00000264409.5 linkuse as main transcript	c.880A>C	p.Lys294Gln	missense_variant	8/12	1	NM_032717.5	P1
GPAT3	ENST00000395226.6 linkuse as main transcript	c.880A>C	p.Lys294Gln	missense_variant	9/13	1		P1
GPAT3	ENST00000611707.4 linkuse as main transcript	c.880A>C	p.Lys294Gln	missense_variant	9/13	5		P1

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152158

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:

0.000235

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000546

AC:

AN:

237950

Hom.:

AF XY:

0.0000467

AC XY:

AN XY:

128354

show subpopulations

Gnomad AFR exome

AF:

0.0000630

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:

0.000109

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000235

AC:

341

AN:

1449878

Hom.:

Cov.:

AF XY:

0.000241

AC XY:

174

AN XY:

720838

show subpopulations

Gnomad4 AFR exome

AF:

0.0000615

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:

0.000293

Gnomad4 OTH exome

AF:

0.000233

GnomAD4 genome

AF:

0.000112

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74322

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:

0.000235

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.0000945

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

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

Apr 04, 2023

The c.880A>C (p.K294Q) alteration is located in exon 8 (coding exon 8) of the GPAT3 gene. This alteration results from a A to C substitution at nucleotide position 880, causing the lysine (K) at amino acid position 294 to be replaced by a glutamine (Q). 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

0.074

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.15

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.21

T;T;T

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.10

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.96

D;.;.

M_CAP

Benign

0.058

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Uncertain

-0.082

MutationAssessor

Benign

0.78

N;N;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.40

Sift4G

Benign

0.37

T;T;T

Polyphen

0.096

B;B;B

Vest4

0.24

MVP

0.83

MPC

0.15

ClinPred

0.043

GERP RS

4.3

Varity_R

0.070

gMVP

0.30

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.34

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.34

Position offset: -25

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