rs142329784

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000379.4(XDH):c.3736C>T(p.Arg1246Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000703 in 1,614,086 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00043 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00073 ( 1 hom. )

Consequence

XDH
NM_000379.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.51

Variant links:

Genes affected

XDH (HGNC:12805): (xanthine dehydrogenase) Xanthine dehydrogenase belongs to the group of molybdenum-containing hydroxylases involved in the oxidative metabolism of purines. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. Xanthine dehydrogenase can be converted to xanthine oxidase by reversible sulfhydryl oxidation or by irreversible proteolytic modification. Defects in xanthine dehydrogenase cause xanthinuria, may contribute to adult respiratory stress syndrome, and may potentiate influenza infection through an oxygen metabolite-dependent mechanism. [provided by RefSeq, Jan 2014]

XDH links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
XDH	NM_000379.4 link	c.3736C>T	p.Arg1246Cys	missense_variant	Exon 34 of 36	ENST00000379416.4	NP_000370.2	P47989
XDH	XM_011533095.3 link	c.3733C>T	p.Arg1245Cys	missense_variant	Exon 34 of 36		XP_011531397.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
XDH	ENST00000379416.4 link	c.3736C>T	p.Arg1246Cys	missense_variant	Exon 34 of 36	1	NM_000379.4	ENSP00000368727.3		P47989

Frequencies

GnomAD3 genomes

AF:

0.000434

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

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:

0.000867

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000406

AC:

102

AN:

251482

Hom.:

AF XY:

0.000368

AC XY:

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

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:

0.000853

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000731

AC:

1069

AN:

1461884

Hom.:

Cov.:

AF XY:

0.000689

AC XY:

501

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000374

Gnomad4 NFE exome

AF:

0.000930

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000434

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.000350

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.000169

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:

0.000867

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000561

Hom.:

Bravo

AF:

0.000363

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000453

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000830

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Hereditary xanthinuria type 1

Uncertain:1

Feb 04, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Xanthinuria type II

Uncertain:1

Jul 11, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1246 of the XDH protein (p.Arg1246Cys). This variant is present in population databases (rs142329784, gnomAD 0.08%). This variant has not been reported in the literature in individuals affected with XDH-related conditions. ClinVar contains an entry for this variant (Variation ID: 572582). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C15"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.15

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.28

Eigen

Uncertain

0.66

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.079

MetaRNN

Uncertain

0.68

MetaSVM

Uncertain

-0.099

MutationAssessor

Pathogenic

3.4

PrimateAI

Uncertain

0.69

PROVEAN

Pathogenic

-4.7

REVEL

Uncertain

0.31

Sift

Benign

0.035

Sift4G

Uncertain

0.016

Polyphen

1.0

Vest4

0.87

MVP

0.87

MPC

0.29

ClinPred

0.52

GERP RS

5.0

Varity_R

0.43

gMVP

0.78

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