Genetic Variant PTCD2:p.Tyr46Phe (chr5-72322181-A-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_024754.5(PTCD2):c.137A>T(p.Tyr46Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000022 in 1,411,204 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

PTCD2
NM_024754.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.41

Variant links:

Genes affected

PTCD2 (HGNC:25734): (pentatricopeptide repeat domain 2) Enables RNA binding activity. Predicted to be involved in mitochondrion organization and regulation of mRNA processing. Predicted to act upstream of or within animal organ development; muscle cell development; and regulation of gene expression. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

PTCD2 links:

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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=0.4020797).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTCD2	NM_024754.5 link	c.137A>T	p.Tyr46Phe	missense_variant	Exon 2 of 10	ENST00000380639.10	NP_079030.3	Q8WV60-1A0A024RAM6B3KPU6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTCD2	ENST00000380639.10 link	c.137A>T	p.Tyr46Phe	missense_variant	Exon 2 of 10	5	NM_024754.5	ENSP00000370013.4		Q8WV60-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000203

AC:

AN:

245774

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133366

show subpopulations

Gnomad AFR exome

AF:

0.0000649

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:

0.0000356

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000220

AC:

AN:

1411204

Hom.:

Cov.:

AF XY:

0.0000184

AC XY:

AN XY:

705022

show subpopulations

Gnomad4 AFR exome

AF:

0.0000310

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:

0.0000271

Gnomad4 OTH exome

AF:

0.0000171

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000312

Hom.:

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.00000828

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 06, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.137A>T (p.Y46F) alteration is located in exon 2 (coding exon 2) of the PTCD2 gene. This alteration results from a A to T substitution at nucleotide position 137, causing the tyrosine (Y) at amino acid position 46 to be replaced by a phenylalanine (F). 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

0.14

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.29

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.19

T;.

Eigen

Uncertain

0.67

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.88

.;D

M_CAP

Benign

0.0085

MetaRNN

Benign

0.40

T;T

MetaSVM

Benign

-0.77

MutationAssessor

Uncertain

2.6

M;M

PrimateAI

Benign

0.45

PROVEAN

Benign

-1.8

N;N

REVEL

Benign

0.22

Sift

Benign

0.11

T;T

Sift4G

Benign

0.13

T;D

Polyphen

1.0

D;.

Vest4

0.43

MutPred

0.64

Loss of catalytic residue at L41 (P = 0.0601);Loss of catalytic residue at L41 (P = 0.0601);

MVP

0.63

MPC

0.51

ClinPred

0.60

GERP RS

5.8

Varity_R

0.14

gMVP

0.26

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over