chr22-40366472-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_000026.4(ADSL):ā€‹c.1405T>Gā€‹(p.Leu469Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,350 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L469I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

ADSL
NM_000026.4 missense

Scores

1
5
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0480
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_000026.4
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.33735326).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADSLNM_000026.4 linkuse as main transcriptc.1405T>G p.Leu469Val missense_variant 13/13 ENST00000623063.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADSLENST00000623063.3 linkuse as main transcriptc.1405T>G p.Leu469Val missense_variant 13/131 NM_000026.4 P1P30566-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251436
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135892
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 SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461350
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727012
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.014
T
BayesDel_noAF
Benign
-0.16
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.60
D;.;T;T
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.51
D
LIST_S2
Benign
0.85
D;T;D;D
M_CAP
Pathogenic
0.29
D
MetaRNN
Benign
0.34
T;T;T;T
MetaSVM
Uncertain
-0.089
T
MutationAssessor
Uncertain
2.9
M;.;.;.
MutationTaster
Benign
1.0
D;D;N
PrimateAI
Benign
0.36
T
PROVEAN
Benign
0.59
.;N;.;.
REVEL
Uncertain
0.47
Sift
Benign
0.23
.;T;.;.
Sift4G
Benign
0.066
T;T;.;T
Polyphen
0.0
B;B;.;.
Vest4
0.21
MutPred
0.59
.;.;.;Gain of methylation at K484 (P = 0.03);
MVP
0.76
MPC
0.31
ClinPred
0.48
T
GERP RS
-5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.16
gMVP
0.82

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs768999974; hg19: chr22-40762476; API