rs775671027

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_000026.4(ADSL):c.1355G>A(p.Arg452His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,613,628 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R452P) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ADSL
NM_000026.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.81

Publications

1 publications found

Variant links:

Genes affected

ADSL (HGNC:291): (adenylosuccinate lyase) The protein encoded by this gene belongs to the lyase 1 family. It is an essential enzyme involved in purine metabolism, and catalyzes two non-sequential reactions in the de novo purine biosynthetic pathway: the conversion of succinylaminoimidazole carboxamide ribotide (SAICAR) to aminoimidazole carboxamide ribotide (AICAR) and the conversion of adenylosuccinate (S-AMP) to adenosine monophosphate (AMP). Mutations in this gene are associated with adenylosuccinase deficiency (ADSLD), a disorder marked with psychomotor retardation, epilepsy or autistic features. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2015]

ADSL Gene-Disease associations (from GenCC):

adenylosuccinate lyase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ADSL links:

ENSG00000284431 (HGNC:):

ENSG00000284431 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_000026.4

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr22-40365043-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1502354.Status of the report is criteria_provided_single_submitter, 1 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.845

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADSL	NM_000026.4 link	c.1355G>A	p.Arg452His	missense_variant	Exon 12 of 13	ENST00000623063.3	NP_000017.1	P30566-1X5D8S6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ADSL	ENST00000623063.3 link	c.1355G>A	p.Arg452His	missense_variant	Exon 12 of 13	1	NM_000026.4	ENSP00000485525.1	P30566-1
ENSG00000284431	ENST00000639722.1 link	n.*1051G>A		non_coding_transcript_exon_variant	Exon 11 of 31	5		ENSP00000492828.1	A0A1W2PRX2
ENSG00000284431	ENST00000639722.1 link	n.*1051G>A		3_prime_UTR_variant	Exon 11 of 31	5		ENSP00000492828.1	A0A1W2PRX2

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.0000239

AC:

AN:

251478

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461518

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727098

show subpopulations

African (AFR)

AF:

0.0000598

AC:

AN:

33466

American (AMR)

AF:

0.0000447

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000928

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5628

European-Non Finnish (NFE)

AF:

0.0000108

AC:

AN:

1111816

Other (OTH)

AF:

0.0000662

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74300

show subpopulations

African (AFR)

AF:

0.0000725

AC:

AN:

41406

American (AMR)

AF:

0.00

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68030

Other (OTH)

AF:

0.000479

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.433

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000450

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Adenylosuccinate lyase deficiency

Uncertain:2

Mar 05, 2021

New York Genome Center

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The inherited c.1355G>A (p.Arg452His) variant identified in the ADSL gene substitutes a well conserved Arginine for Histidine at amino acid 452/485 (exon 12/13). This variant is found with low frequency in gnomAD(v3.1) (6 heterozygotes, 0 homozygotes; allele frequency: 3.95e-5) suggesting it is not a common benign variant in the populations represented in that database. In silico algorithms predict this variant to be Damaging (SIFT; score: 0.022) and Pathogenic (REVEL; score:0.822) to the function of the canonical transcript. This variant is reported in ClinVar as a Variant of Uncertain Significance (VarID:529215), and to our current knowledge has not been reported in affected individuals in the literature although a different amino acid change at the same position has been reported in a pair of affected siblings [p.Arg452Pro; PMID:12368987]. The inherited c.1355G>A (p.Arg452His) variant identified in the ADSL gene is reported as a Variant of Uncertain Significance. -

Nov 24, 2024

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 histidine, which is basic and polar, at codon 452 of the ADSL protein (p.Arg452His). This variant is present in population databases (rs775671027, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with ADSL-related conditions. ClinVar contains an entry for this variant (Variation ID: 529215). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ADSL protein function with a positive predictive value of 80%. 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

Uncertain

0.47

BayesDel_addAF

Uncertain

0.023

BayesDel_noAF

Uncertain

-0.020

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.84

D;T;T

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.94

D;D;D

M_CAP

Uncertain

0.22

MetaRNN

Pathogenic

0.84

D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.0

H;.;.

PhyloP100

8.8

PrimateAI

Benign

0.45

REVEL

Pathogenic

0.82

Sift4G

Uncertain

0.023

D;.;D

Polyphen

1.0

D;.;.

Vest4

0.69

MutPred

0.60

.;.;Loss of phosphorylation at S468 (P = 0.0653);

MVP

0.93

MPC

1.1

ClinPred

1.0

GERP RS

5.3

PromoterAI

-0.039

Neutral

(source)

Varity_R

0.98

gMVP

0.77

Mutation Taster

=3/97

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs775671027

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over