12-50107640-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_005276.4(GPD1):ā€‹c.686G>Cā€‹(p.Arg229Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000178 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000018 ( 0 hom. )

Consequence

GPD1
NM_005276.4 missense

Scores

15
3
1

Clinical Significance

Pathogenic/Likely pathogenic no assertion criteria provided P:2

Conservation

PhyloP100: 10.0
Variant links:
Genes affected
GPD1 (HGNC:4455): (glycerol-3-phosphate dehydrogenase 1) This gene encodes a member of the NAD-dependent glycerol-3-phosphate dehydrogenase family. The encoded protein plays a critical role in carbohydrate and lipid metabolism by catalyzing the reversible conversion of dihydroxyacetone phosphate (DHAP) and reduced nicotine adenine dinucleotide (NADH) to glycerol-3-phosphate (G3P) and NAD+. The encoded cytosolic protein and mitochondrial glycerol-3-phosphate dehydrogenase also form a glycerol phosphate shuttle that facilitates the transfer of reducing equivalents from the cytosol to mitochondria. Mutations in this gene are a cause of transient infantile hypertriglyceridemia. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Mar 2012]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.934
PP5
Variant 12-50107640-G-C is Pathogenic according to our data. Variant chr12-50107640-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 157542.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-50107640-G-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GPD1NM_005276.4 linkuse as main transcriptc.686G>C p.Arg229Pro missense_variant 6/8 ENST00000301149.8 NP_005267.2 P21695-1A0A024R138
GPD1NM_001257199.2 linkuse as main transcriptc.617G>C p.Arg206Pro missense_variant 6/8 NP_001244128.1 P21695-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GPD1ENST00000301149.8 linkuse as main transcriptc.686G>C p.Arg229Pro missense_variant 6/81 NM_005276.4 ENSP00000301149.3 P21695-1
GPD1ENST00000548814.1 linkuse as main transcriptc.617G>C p.Arg206Pro missense_variant 6/82 ENSP00000446768.1 P21695-2
GPD1ENST00000547190.5 linkuse as main transcriptn.656-384G>C intron_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251480
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135914
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:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
727240
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:
0.0000207
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Transient infantile hypertriglyceridemia and hepatosteatosis Pathogenic:2
Likely pathogenic, no assertion criteria providedclinical testingGenomics England Pilot Project, Genomics England-- -
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 01, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.31
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.91
D;.
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Uncertain
0.39
D
MutationAssessor
Pathogenic
3.9
H;.
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-6.8
D;D
REVEL
Pathogenic
0.87
Sift
Pathogenic
0.0
D;D
Sift4G
Uncertain
0.0020
D;D
Polyphen
1.0
D;.
Vest4
0.98
MutPred
0.74
Gain of catalytic residue at K224 (P = 0.0025);.;
MVP
0.90
MPC
0.79
ClinPred
1.0
D
GERP RS
4.8
Varity_R
1.0
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs199673455; hg19: chr12-50501423; API