chr12-21437749-C-T

Position:

chr12-21437749-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024854.5(PYROXD1):c.19C>T(p.Pro7Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P7T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PYROXD1
NM_024854.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.340

Variant links:

Genes affected

PYROXD1 (HGNC:26162): (pyridine nucleotide-disulphide oxidoreductase domain 1) This gene encodes a nuclear-cytoplasmic pyridine nucleotide-disulphide reductase (PNDR). PNDRs are flavoproteins that catalyze the pyridine nucleotide-dependent reduction of thiol residues in other proteins. The encoded protein belongs to the class I pyridine nucleotide-disulphide oxidoreductase family but lacks the C-terminal dimerization domain found in other family members and instead has a C-terminal nitrile reductase domain. It localizes to the nucleus and to striated sarcomeric compartments. Naturally occurring mutations in this gene cause early-onset myopathy with internalized nuclei and myofibrillar disorganization. A pseudogene of this gene has been defined on chromosome 11. [provided by RefSeq, Apr 2017]

PYROXD1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.045012057).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
PYROXD1	NM_024854.5 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant	1/12	ENST00000240651.14
PYROXD1	XM_047429554.1 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant	1/10
PYROXD1	XM_006719153.4 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant	1/8
PYROXD1	NM_001350913.2 linkuse as main transcript	c.-685C>T		5_prime_UTR_variant	1/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PYROXD1	ENST00000240651.14 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant	1/12	1	NM_024854.5	P1	Q8WU10-1
PYROXD1	ENST00000544970.5 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant, NMD_transcript_variant	1/11	1
PYROXD1	ENST00000543476.5 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant, NMD_transcript_variant	1/9	5
PYROXD1	ENST00000375266.8 linkuse as main transcript	c.19C>T	p.Pro7Ser	missense_variant, NMD_transcript_variant	1/13	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000410

AC:

AN:

243614

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132558

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000552

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460470

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726376

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

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.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000825

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 17, 2022

The c.19C>T (p.P7S) alteration is located in exon 1 (coding exon 1) of the PYROXD1 gene. This alteration results from a C to T substitution at nucleotide position 19, causing the proline (P) at amino acid position 7 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

Benign

0.065

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.57

CADD

Benign

3.1

DANN

Benign

0.94

DEOGEN2

Benign

0.011

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.038

LIST_S2

Benign

0.47

M_CAP

Benign

0.0036

MetaRNN

Benign

0.045

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.34

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Uncertain

0.55

PROVEAN

Benign

0.95

REVEL

Benign

0.048

Sift

Benign

0.17

Sift4G

Benign

0.60

Polyphen

0.0010

Vest4

0.16

MutPred

0.32

Gain of catalytic residue at K12 (P = 0.0046);

MVP

0.030

MPC

0.14

ClinPred

0.031

GERP RS

-1.2

Varity_R

0.023

gMVP

0.41

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