8-93921902-A-G

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_018444.4(PDP1):​c.-44-114A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00171 in 704,582 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0055 ( 8 hom., cov: 33)
Exomes 𝑓: 0.00067 ( 1 hom. )

Consequence

PDP1
NM_018444.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.298
Variant links:
Genes affected
PDP1 (HGNC:9279): (pyruvate dehydrogenase phosphatase catalytic subunit 1) Pyruvate dehydrogenase (E1) is one of the three components (E1, E2, and E3) of the large pyruvate dehydrogenase complex. Pyruvate dehydrogenase kinases catalyze phosphorylation of serine residues of E1 to inactivate the E1 component and inhibit the complex. Pyruvate dehydrogenase phosphatases catalyze the dephosphorylation and activation of the E1 component to reverse the effects of pyruvate dehydrogenase kinases. Pyruvate dehydrogenase phosphatase is a heterodimer consisting of catalytic and regulatory subunits. Two catalytic subunits have been reported; one is predominantly expressed in skeletal muscle and another one is is much more abundant in the liver. The catalytic subunit, encoded by this gene, is the former, and belongs to the protein phosphatase 2C (PP2C) superfamily. Along with the pyruvate dehydrogenase complex and pyruvate dehydrogenase kinases, this enzyme is located in the mitochondrial matrix. Mutation in this gene causes pyruvate dehydrogenase phosphatase deficiency. Multiple alternatively spliced transcript variants encoding different isoforms have been identified.[provided by RefSeq, Jun 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 8-93921902-A-G is Benign according to our data. Variant chr8-93921902-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 676918.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00549 (836/152358) while in subpopulation AFR AF= 0.0192 (797/41572). AF 95% confidence interval is 0.0181. There are 8 homozygotes in gnomad4. There are 372 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDP1NM_018444.4 linkuse as main transcriptc.-44-114A>G intron_variant ENST00000297598.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDP1ENST00000297598.5 linkuse as main transcriptc.-44-114A>G intron_variant 1 NM_018444.4 P4Q9P0J1-1

Frequencies

GnomAD3 genomes
AF:
0.00547
AC:
833
AN:
152240
Hom.:
8
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0192
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00190
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00287
GnomAD4 exome
AF:
0.000668
AC:
369
AN:
552224
Hom.:
1
Cov.:
7
AF XY:
0.000593
AC XY:
170
AN XY:
286742
show subpopulations
Gnomad4 AFR exome
AF:
0.0198
Gnomad4 AMR exome
AF:
0.00122
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000219
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000338
Gnomad4 OTH exome
AF:
0.00129
GnomAD4 genome
AF:
0.00549
AC:
836
AN:
152358
Hom.:
8
Cov.:
33
AF XY:
0.00499
AC XY:
372
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.0192
Gnomad4 AMR
AF:
0.00190
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00544
Hom.:
0
Bravo
AF:
0.00632
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
4.2
DANN
Benign
0.74

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: rs116698141; hg19: chr8-94934130; API