8-51319982-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_144651.5(PXDNL):c.4301C>T(p.Ala1434Val) 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. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: PXDNL NM_144651.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0190

Genes affected

PXDNL (HGNC:26359): (peroxidasin like) Predicted to enable heme binding activity and peroxidase activity. Predicted to be involved in hydrogen peroxide catabolic process. Predicted to be located in cytoplasm. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.053600132).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PXDNL	NM_144651.5	c.4301C>T	p.Ala1434Val	missense_variant	23/23	ENST00000356297.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PXDNL	ENST00000356297.5	c.4301C>T	p.Ala1434Val	missense_variant	23/23	1	NM_144651.5	P1
	ENST00000521294.1	n.121-738G>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1420116 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 706386

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 17, 2021

The c.4301C>T (p.A1434V) alteration is located in exon 23 (coding exon 23) of the PXDNL gene. This alteration results from a C to T substitution at nucleotide position 4301, causing the alanine (A) at amino acid position 1434 to be replaced by a valine (V). 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	0.11
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.53
Cadd	Benign	1.1
Dann	Benign	0.67
DEOGEN2	Benign	0.0021	T
Eigen	Benign	-1.0
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.010	N
LIST_S2	Benign	0.85	D
M_CAP	Benign	0.0066	T
MetaRNN	Benign	0.054	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	-0.27	N
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.27	T
PROVEAN	Benign	-0.50	N
REVEL	Benign	0.058
Sift	Benign	1.0	T
Sift4G	Benign	0.94	T
Polyphen		0.0090	B
Vest4		0.075
MutPred		0.40		Loss of glycosylation at P1433 (P = 0.1684);
MVP		0.17
MPC		0.13
ClinPred		0.022	T
GERP RS		0.67
Varity_R		0.053
gMVP		0.21

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: chr8-52232542;