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GeneBe

4-83596887-A-G

Variant summary

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

The NM_032717.5(GPAT3):c.884A>G(p.Lys295Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000005 in 1,601,344 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

GPAT3
NM_032717.5 missense

Scores

2
7
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.13
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]

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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/exons MANE UniProt
GPAT3NM_032717.5 linkuse as main transcriptc.884A>G p.Lys295Arg missense_variant 8/12 ENST00000264409.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPAT3ENST00000264409.5 linkuse as main transcriptc.884A>G p.Lys295Arg missense_variant 8/121 NM_032717.5 P1
GPAT3ENST00000395226.6 linkuse as main transcriptc.884A>G p.Lys295Arg missense_variant 9/131 P1
GPAT3ENST00000611707.4 linkuse as main transcriptc.884A>G p.Lys295Arg missense_variant 9/135 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
32
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:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000126
AC:
3
AN:
237698
Hom.:
0
AF XY:
0.0000234
AC XY:
3
AN XY:
128330
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:
0.0000272
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000414
AC:
6
AN:
1449144
Hom.:
0
Cov.:
30
AF XY:
0.00000555
AC XY:
4
AN XY:
720528
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:
0.00000541
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74348
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsJul 14, 2022The c.884A>G (p.K295R) alteration is located in exon 8 (coding exon 8) of the GPAT3 gene. This alteration results from a A to G substitution at nucleotide position 884, causing the lysine (K) at amino acid position 295 to be replaced by an arginine (R). 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
0.10
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.030
Cadd
Uncertain
24
Dann
Uncertain
1.0
DEOGEN2
Benign
0.37
T;T;T
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.98
D;.;.
M_CAP
Benign
0.075
D
MetaRNN
Uncertain
0.47
T;T;T
MetaSVM
Uncertain
0.49
D
MutationAssessor
Benign
1.9
M;M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Benign
0.46
T
Sift4G
Benign
0.23
T;T;T
Polyphen
0.72
P;P;P
Vest4
0.49
MVP
0.94
MPC
0.21
ClinPred
0.69
D
GERP RS
5.5
Varity_R
0.25
gMVP
0.61

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: rs367596705; hg19: chr4-84518040; API