Genetic Variant NM_002611.5:c.953C>T (chr17-50108703-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002611.5(PDK2):c.953C>T(p.Thr318Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,611,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PDK2
NM_002611.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.07

Publications

1 publications found

Variant links:

Genes affected

PDK2 (HGNC:8810): (pyruvate dehydrogenase kinase 2) This gene encodes a member of the pyruvate dehydrogenase kinase family. The encoded protein phosphorylates pyruvate dehydrogenase, down-regulating the activity of the mitochondrial pyruvate dehydrogenase complex. Overexpression of this gene may play a role in both cancer and diabetes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]

PDK2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30310392).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PDK2	NM_002611.5 link	c.953C>T	p.Thr318Ile	missense_variant	Exon 9 of 11	ENST00000503176.6	NP_002602.2	Q15119-1
PDK2	NM_001199898.2 link	c.761C>T	p.Thr254Ile	missense_variant	Exon 10 of 12		NP_001186827.1	Q15119-2
PDK2	NM_001199899.2 link	c.761C>T	p.Thr254Ile	missense_variant	Exon 9 of 11		NP_001186828.1	Q15119-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PDK2	ENST00000503176.6 link	c.953C>T	p.Thr318Ile	missense_variant	Exon 9 of 11	1	NM_002611.5	ENSP00000420927.1		Q15119-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152020

Hom.:

Cov.:

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000121

AC:

AN:

247480

AF XY:

0.00000747

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000268

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1459542

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726014

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33434

American (AMR)

AF:

0.00

AC:

AN:

44544

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26062

East Asian (EAS)

AF:

0.00

AC:

AN:

39672

South Asian (SAS)

AF:

0.00

AC:

AN:

85822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53324

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1110622

Other (OTH)

AF:

0.00

AC:

AN:

60298

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152020

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41380

American (AMR)

AF:

0.00

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 27, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.953C>T (p.T318I) alteration is located in exon 9 (coding exon 9) of the PDK2 gene. This alteration results from a C to T substitution at nucleotide position 953, causing the threonine (T) at amino acid position 318 to be replaced by an isoleucine (I). 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

0.10

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.62

.;D;T;.

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.14

FATHMM_MKL

Benign

0.60

LIST_S2

Benign

0.84

.;T;T;T

M_CAP

Benign

0.037

MetaRNN

Benign

0.30

T;T;T;T

MetaSVM

Benign

-0.65

MutationAssessor

Benign

1.7

.;L;.;.

PhyloP100

1.1

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-2.9

D;D;D;.

REVEL

Benign

0.044

Sift

Benign

0.17

T;T;T;.

Sift4G

Benign

0.20

T;T;T;T

Polyphen

0.51

.;P;.;.

Vest4

0.22

MutPred

0.35

.;Loss of glycosylation at T318 (P = 0.0081);.;.;

MVP

0.65

MPC

0.87

ClinPred

0.70

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.13

gMVP

0.42

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

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NM_002611.5:c.953C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over