Genetic Variant PDXDC1:p.Leu323Ser (chr16-15018844-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

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

The NM_015027.4(PDXDC1):c.968T>C(p.Leu323Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,298 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 38)

Exomes 𝑓: 0.000021 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PDXDC1
NM_015027.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.04

Variant links:

Genes affected

PDXDC1 (HGNC:28995): (pyridoxal dependent decarboxylase domain containing 1) Enables cadherin binding activity. Predicted to be involved in carboxylic acid metabolic process. Located in Golgi apparatus. [provided by Alliance of Genome Resources, Apr 2022]

PDXDC1 links:

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, 0.937

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PDXDC1	NM_015027.4 link	c.968T>C	p.Leu323Ser	missense_variant	Exon 12 of 23	ENST00000396410.9	NP_055842.2	Q6P996-1Q6XYB5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PDXDC1	ENST00000396410.9 link	c.968T>C	p.Leu323Ser	missense_variant	Exon 12 of 23	1	NM_015027.4	ENSP00000379691.4		Q6P996-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152298

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251152

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135730

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:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000205

AC:

AN:

1461626

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727126

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:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000234

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74414

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.968T>C (p.L323S) alteration is located in exon 12 (coding exon 12) of the PDXDC1 gene. This alteration results from a T to C substitution at nucleotide position 968, causing the leucine (L) at amino acid position 323 to be replaced by a serine (S). 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

Pathogenic

0.67

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

0.13

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.028

T;T;.;T;.;.;T;.

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.95

D;.;.;D;D;D;.;D

M_CAP

Benign

0.067

MetaRNN

Pathogenic

0.94

D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.68

MutationAssessor

Benign

1.8

.;.;.;L;.;.;.;.

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-1.6

N;N;N;N;N;.;.;.

REVEL

Uncertain

0.51

Sift

Benign

0.15

T;D;T;T;T;.;.;.

Sift4G

Pathogenic

0.0

D;D;D;D;D;D;D;D

Polyphen

1.0, 0.96

.;D;D;D;.;.;.;.

Vest4

0.90

MutPred

0.81

.;Gain of disorder (P = 0.0166);.;Gain of disorder (P = 0.0166);.;.;Gain of disorder (P = 0.0166);.;

MVP

0.72

MPC

0.74

ClinPred

0.84

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.72

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.

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