2-156496195-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_000408.5(GPD2):​c.254C>T​(p.Ala85Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000267 in 1,609,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

GPD2
NM_000408.5 missense

Scores

12
6
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.74
Variant links:
Genes affected
GPD2 (HGNC:4456): (glycerol-3-phosphate dehydrogenase 2) The protein encoded by this gene localizes to the inner mitochondrial membrane and catalyzes the conversion of glycerol-3-phosphate to dihydroxyacetone phosphate, using FAD as a cofactor. Along with GDP1, the encoded protein constitutes the glycerol phosphate shuttle, which reoxidizes NADH formed during glycolysis. Two transcript variants encoding the same protein have been found for this gene.[provided by RefSeq, Jan 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GPD2NM_000408.5 linkuse as main transcriptc.254C>T p.Ala85Val missense_variant 3/17 ENST00000438166.7 NP_000399.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GPD2ENST00000438166.7 linkuse as main transcriptc.254C>T p.Ala85Val missense_variant 3/171 NM_000408.5 ENSP00000409708 P1P43304-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151848
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:
0.0000239
AC:
6
AN:
250912
Hom.:
0
AF XY:
0.0000369
AC XY:
5
AN XY:
135590
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000281
AC:
41
AN:
1458088
Hom.:
0
Cov.:
30
AF XY:
0.0000358
AC XY:
26
AN XY:
725604
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.0000361
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151848
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74144
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:
0.0000386
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000247
AC:
3

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 GeneticsOct 27, 2022The c.254C>T (p.A85V) alteration is located in exon 3 (coding exon 2) of the GPD2 gene. This alteration results from a C to T substitution at nucleotide position 254, causing the alanine (A) at amino acid position 85 to be replaced by a valine (V). 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
Uncertain
0.52
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.88
.;D;D;D;D
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.90
D;.;.;D;.
M_CAP
Pathogenic
0.45
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D
MetaSVM
Pathogenic
0.98
D
MutationAssessor
Pathogenic
3.5
.;M;M;.;M
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-4.0
D;D;D;D;D
REVEL
Pathogenic
0.86
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Uncertain
0.048
D;D;D;D;D
Polyphen
1.0
.;D;D;.;D
Vest4
0.83, 0.84
MutPred
0.93
Loss of catalytic residue at A85 (P = 0.1704);Loss of catalytic residue at A85 (P = 0.1704);Loss of catalytic residue at A85 (P = 0.1704);Loss of catalytic residue at A85 (P = 0.1704);Loss of catalytic residue at A85 (P = 0.1704);
MVP
0.97
MPC
0.84
ClinPred
0.99
D
GERP RS
5.5
Varity_R
0.46
gMVP
0.85

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: rs761600581; hg19: chr2-157352707; API