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GeneBe

10-112160706-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001244949.2(GPAM):c.1657G>C(p.Asp553His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,613,966 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00017 ( 1 hom. )

Consequence

GPAM
NM_001244949.2 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.51
Variant links:
Genes affected
GPAM (HGNC:24865): (glycerol-3-phosphate acyltransferase, mitochondrial) This gene encodes a mitochondrial enzyme which prefers saturated fatty acids as its substrate for the synthesis of glycerolipids. This metabolic pathway's first step is catalyzed by the encoded enzyme. Two forms for this enzyme exist, one in the mitochondria and one in the endoplasmic reticulum. Two alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Oct 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.08257875).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPAMNM_001244949.2 linkuse as main transcriptc.1657G>C p.Asp553His missense_variant 16/22 ENST00000348367.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPAMENST00000348367.9 linkuse as main transcriptc.1657G>C p.Asp553His missense_variant 16/221 NM_001244949.2 P1
GPAMENST00000369425.5 linkuse as main transcriptc.1657G>C p.Asp553His missense_variant 16/191

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.000279
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000131
AC:
33
AN:
251400
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135872
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000231
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:
0.000202
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000172
AC:
251
AN:
1461684
Hom.:
1
Cov.:
31
AF XY:
0.000160
AC XY:
116
AN XY:
727172
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000201
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:
0.000206
Gnomad4 OTH exome
AF:
0.000215
GnomAD4 genome
AF:
0.000158
AC:
24
AN:
152282
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000279
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000196
Hom.:
0
Bravo
AF:
0.000159
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000415

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 GeneticsDec 07, 2021The c.1657G>C (p.D553H) alteration is located in exon 1 (coding exon 1) of the GPAM gene. This alteration results from a G to C substitution at nucleotide position 1657, causing the aspartic acid (D) at amino acid position 553 to be replaced by a histidine (H). 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
0.13
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.29
Cadd
Uncertain
23
Dann
Uncertain
0.99
DEOGEN2
Benign
0.13
T;.
Eigen
Uncertain
0.36
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.083
T;T
MetaSVM
Benign
-0.78
T
MutationAssessor
Benign
0.90
L;.
MutationTaster
Benign
0.99
D;D;D
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.1
N;N
REVEL
Benign
0.18
Sift
Benign
0.25
T;T
Sift4G
Benign
0.11
T;T
Polyphen
0.95
P;P
Vest4
0.17
MVP
0.73
MPC
0.55
ClinPred
0.070
T
GERP RS
6.1
Varity_R
0.082
gMVP
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs151269022; hg19: chr10-113920464; API