16-70142278-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_017990.5(PDPR):โ€‹c.1360G>Tโ€‹(p.Gly454Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,270 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: ๐‘“ 0.000020 ( 0 hom., cov: 45)
Exomes ๐‘“: 0.0000041 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PDPR
NM_017990.5 missense

Scores

11
6
2

Clinical Significance

Conflicting classifications of pathogenicity no assertion criteria provided U:1B:1

Conservation

PhyloP100: 9.59
Variant links:
Genes affected
PDPR (HGNC:30264): (pyruvate dehydrogenase phosphatase regulatory subunit) Pyruvate dehydrogenase complex (PDC) catalyzes the oxidative decarboxylation of pyruvate and links glycolysis to the tricarboxylic acid cycle and fatty acid synthesis. The dephosphorylation and reactivation of PDC is catalyzed by pyruvate dehydrogenase phosphatase (PDP). The dimeric PDP has a catalytic subunit and a regulatory subunit. This gene encodes the FAD-containing regulatory subunit of PDP. The encoded protein acts to decrease the sensitivity of the PDP catalytic subunit to magnesium ions. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jan 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.936

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PDPRNM_017990.5 linkc.1360G>T p.Gly454Cys missense_variant Exon 12 of 19 ENST00000288050.9 NP_060460.4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PDPRENST00000288050.9 linkc.1360G>T p.Gly454Cys missense_variant Exon 12 of 19 1 NM_017990.5 ENSP00000288050.5 Q8NCN5-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152270
Hom.:
0
Cov.:
45
show subpopulations
Gnomad AFR
AF:
0.0000723
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249216
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135204
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000410
AC:
6
AN:
1461646
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727106
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152270
Hom.:
0
Cov.:
45
AF XY:
0.0000403
AC XY:
3
AN XY:
74386
show subpopulations
Gnomad4 AFR
AF:
0.0000723
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:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

not provided Uncertain:1
Jan 13, 2015
OMIM
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: literature only

- -

Familial aplasia of the vermis Benign:1
Nov 13, 2019
Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: research

In the same patient we were able to identify a likely pathogenic variant for Joubert syndrome (TMEM231 NM_001077418.2: c.665รขโ‚ฌย11T>C, see PMID: 27894351). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Benign
0.13
T;T;T
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
.;D;D
M_CAP
Pathogenic
0.38
D
MetaRNN
Pathogenic
0.94
D;D;D
MetaSVM
Uncertain
0.18
D
MutationAssessor
Uncertain
2.1
M;.;M
PrimateAI
Pathogenic
0.91
D
PROVEAN
Pathogenic
-5.7
D;D;D
REVEL
Pathogenic
0.91
Sift
Uncertain
0.0020
D;D;D
Sift4G
Uncertain
0.0030
D;D;D
Polyphen
1.0
D;.;D
Vest4
0.97
MutPred
0.81
Loss of disorder (P = 0.0634);.;Loss of disorder (P = 0.0634);
MVP
0.92
MPC
1.3
ClinPred
0.98
D
GERP RS
5.2
Varity_R
0.80
gMVP
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs202246074; hg19: chr16-70176181; COSMIC: COSV55356630; COSMIC: COSV55356630; API