chr22-17181904-T-C

Variant names:

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_001282225.2(ADA2):c.1358A>G(p.Tyr453Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000113 in 1,614,136 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 Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. Y453Y) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

ADA2
NM_001282225.2 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4O:1

Conservation

PhyloP100: 3.79

Variant links:

Genes affected

ADA2 (HGNC:1839): (adenosine deaminase 2) This gene encodes a member of a subfamily of the adenosine deaminase protein family. The encoded protein is one of two adenosine deaminases found in humans, which regulate levels of the signaling molecule, adenosine. The encoded protein is secreted from monocytes undergoing differentiation and may regulate cell proliferation and differentiation. This gene may be responsible for some of the phenotypic features associated with cat eye syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

ADA2 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.973

PP5

Variant 22-17181904-T-C is Pathogenic according to our data. Variant chr22-17181904-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 120299.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADA2	NM_001282225.2 link	c.1358A>G	p.Tyr453Cys	missense_variant	Exon 9 of 10	ENST00000399837.8	NP_001269154.1	Q9NZK5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ADA2	ENST00000399837.8 link	c.1358A>G	p.Tyr453Cys	missense_variant	Exon 9 of 10	1	NM_001282225.2	ENSP00000382731.2		Q9NZK5-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000795

AC:

AN:

251472

Hom.:

AF XY:

0.0000957

AC XY:

AN XY:

135906

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000118

AC:

172

AN:

1461842

Hom.:

Cov.:

AF XY:

0.000118

AC XY:

AN XY:

727220

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.0000374

Gnomad4 NFE exome

AF:

0.000144

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000189

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000174

Hom.:

Bravo

AF:

0.0000831

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000296

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:4Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Vasculitis due to ADA2 deficiency

Pathogenic:2Other:1

Nov 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 453 of the ADA2 protein (p.Tyr453Cys). This variant is present in population databases (rs376785840, gnomAD 0.01%). This missense change has been observed in individual(s) with ADA2 deficiency and auto-inflammatory disease in multiple families (PMID: 24552284, 27252897). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 120299). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Probably Damaging". The cysteine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. For these reasons, this variant has been classified as Pathogenic. -

Mar 06, 2014

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

GeneReviews

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

- -

Sneddon syndrome;C3887654:Vasculitis due to ADA2 deficiency

Pathogenic:1

May 23, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Autoinflammatory syndrome

Pathogenic:1

Jan 01, 2020

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.084

BayesDel_noAF

Uncertain

0.12

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.34

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

Eigen

Uncertain

0.34

Eigen_PC

Benign

0.13

FATHMM_MKL

Uncertain

0.86

LIST_S2

Pathogenic

0.97

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

M_CAP

Pathogenic

0.53

MetaRNN

Pathogenic

0.97

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

MetaSVM

Uncertain

0.40

PrimateAI

Benign

0.34

PROVEAN

Pathogenic

-7.9

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

REVEL

Pathogenic

0.87

Sift

Uncertain

0.0020

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

Sift4G

Uncertain

0.0040

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

Polyphen

1.0

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

Vest4

0.68

MVP

0.90

MPC

0.34

ClinPred

0.97

GERP RS

2.7

Varity_R

0.97

gMVP

0.59

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