chr10-98383818-T-C

Position:

• chr10-98383818-T-C

Variant summary

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

The NM_032709.3(PYROXD2):​c.1726A>G​(p.Arg576Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PYROXD2 NM_032709.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.784

Genes affected

PYROXD2 (HGNC:23517): (pyridine nucleotide-disulphide oxidoreductase domain 2) Predicted to enable oxidoreductase activity. Involved in mitochondrion organization. Located in mitochondrial matrix. [provided by Alliance of Genome Resources, Apr 2022]

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=0.051938206).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PYROXD2	NM_032709.3	c.1726A>G	p.Arg576Gly	missense_variant	16/16	ENST00000370575.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PYROXD2	ENST00000370575.5	c.1726A>G	p.Arg576Gly	missense_variant	16/16	1	NM_032709.3	P1
PYROXD2	ENST00000483923.5	n.2612A>G		non_coding_transcript_exon_variant	15/15	1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461852 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727222

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.0000113

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 06, 2022

The c.1726A>G (p.R576G) alteration is located in exon 16 (coding exon 16) of the PYROXD2 gene. This alteration results from a A to G substitution at nucleotide position 1726, causing the arginine (R) at amino acid position 576 to be replaced by a glycine (G). 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	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	3.2
DANN	Benign	0.79
DEOGEN2	Benign	0.047	T
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.014	N
LIST_S2	Benign	0.54	T
M_CAP	Benign	0.0043	T
MetaRNN	Benign	0.052	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.0	L
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.22	T
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.095
Sift	Benign	0.13	T
Sift4G	Benign	0.14	T
Polyphen		0.0	B
Vest4		0.064
MutPred		0.47		Loss of MoRF binding (P = 5e-04);
MVP		0.048
MPC		0.039
ClinPred		0.079	T
GERP RS		-11
Varity_R		0.12
gMVP		0.71

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		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

Other links and lift over

dbSNP: rs1842663357; hg19: chr10-100143575;