rs369879957

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000048.4(ASL):​c.649C>T​(p.Arg217*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000348 in 1,606,892 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 Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R217R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

ASL
NM_000048.4 stop_gained

Scores

2
4

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:8

Conservation

PhyloP100: 3.52

Publications

5 publications found
Variant links:
Genes affected
ASL (HGNC:746): (argininosuccinate lyase) This gene encodes a member of the lyase 1 family. The encoded protein forms a cytosolic homotetramer and primarily catalyzes the reversible hydrolytic cleavage of argininosuccinate into arginine and fumarate, an essential step in the liver in detoxifying ammonia via the urea cycle. Mutations in this gene result in the autosomal recessive disorder argininosuccinic aciduria, or argininosuccinic acid lyase deficiency. A nontranscribed pseudogene is also located on the long arm of chromosome 22. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
ASL Gene-Disease associations (from GenCC):
  • argininosuccinic aciduria
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, ClinGen, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 7-66087380-C-T is Pathogenic according to our data. Variant chr7-66087380-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 203615.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000048.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ASL
NM_000048.4
MANE Select
c.649C>Tp.Arg217*
stop_gained
Exon 9 of 17NP_000039.2
ASL
NM_001024943.2
c.649C>Tp.Arg217*
stop_gained
Exon 8 of 16NP_001020114.1A0A024RDL8
ASL
NM_001024944.2
c.649C>Tp.Arg217*
stop_gained
Exon 8 of 15NP_001020115.1P04424-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ASL
ENST00000304874.14
TSL:1 MANE Select
c.649C>Tp.Arg217*
stop_gained
Exon 9 of 17ENSP00000307188.9P04424-1
ASL
ENST00000395332.8
TSL:1
c.649C>Tp.Arg217*
stop_gained
Exon 8 of 16ENSP00000378741.3P04424-1
ASL
ENST00000906815.1
c.742C>Tp.Arg248*
stop_gained
Exon 10 of 18ENSP00000576874.1

Frequencies

GnomAD3 genomes
AF:
0.0000461
AC:
7
AN:
151902
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
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:
0.0000736
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000122
AC:
3
AN:
245080
AF XY:
0.00000750
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:
0.0000606
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000337
AC:
49
AN:
1454990
Hom.:
0
Cov.:
35
AF XY:
0.0000359
AC XY:
26
AN XY:
724168
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46644
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000423
AC:
47
AN:
1111948
Other (OTH)
AF:
0.00
AC:
0
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000461
AC:
7
AN:
151902
Hom.:
0
Cov.:
31
AF XY:
0.0000674
AC XY:
5
AN XY:
74206
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41342
American (AMR)
AF:
0.0000656
AC:
1
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000736
AC:
5
AN:
67934
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000158
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
6
-
-
Argininosuccinate lyase deficiency (6)
2
-
-
not provided (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.51
CADD
Pathogenic
40
DANN
Uncertain
1.0
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.80
D
PhyloP100
3.5
Vest4
0.91
GERP RS
3.9
PromoterAI
-0.0040
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=0/200
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs369879957; hg19: chr7-65552367; COSMIC: COSV59189207; COSMIC: COSV59189207; API