16-70130486-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_017990.5(PDPR):ā€‹c.671G>Cā€‹(p.Gly224Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 (ā˜…).

Frequency

Genomes: not found (cov: 42)
Exomes š‘“: 0.0000068 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PDPR
NM_017990.5 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.33
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2948408).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDPRNM_017990.5 linkuse as main transcriptc.671G>C p.Gly224Ala missense_variant 7/19 ENST00000288050.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDPRENST00000288050.9 linkuse as main transcriptc.671G>C p.Gly224Ala missense_variant 7/191 NM_017990.5 P1Q8NCN5-1

Frequencies

GnomAD3 genomes
Cov.:
42
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000684
AC:
10
AN:
1461504
Hom.:
0
Cov.:
34
AF XY:
0.00000550
AC XY:
4
AN XY:
727032
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:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
42

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 GeneticsNov 16, 2021The c.671G>C (p.G224A) alteration is located in exon 7 (coding exon 5) of the PDPR gene. This alteration results from a G to C substitution at nucleotide position 671, causing the glycine (G) at amino acid position 224 to be replaced by an alanine (A). 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
0.089
BayesDel_addAF
Benign
-0.080
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.070
T;T;T
Eigen
Benign
-0.14
Eigen_PC
Benign
0.031
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.86
.;D;D
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.29
T;T;T
MetaSVM
Uncertain
-0.23
T
MutationAssessor
Benign
0.82
L;.;L
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-1.9
N;N;N
REVEL
Uncertain
0.36
Sift
Benign
0.66
T;T;T
Sift4G
Benign
0.80
T;T;T
Polyphen
0.17
B;.;B
Vest4
0.25
MutPred
0.79
Loss of disorder (P = 0.0716);.;Loss of disorder (P = 0.0716);
MVP
0.80
MPC
0.54
ClinPred
0.67
D
GERP RS
4.9
Varity_R
0.21
gMVP
0.69

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-70164389; COSMIC: COSV55353716; COSMIC: COSV55353716; API