chr9-130452052-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_054012.4(ASS1):​c.-5-172T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.971 in 700,902 control chromosomes in the GnomAD database, including 330,618 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.95 ( 68584 hom., cov: 32)
Exomes 𝑓: 0.98 ( 262034 hom. )

Consequence

ASS1
NM_054012.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.15
Variant links:
Genes affected
ASS1 (HGNC:758): (argininosuccinate synthase 1) The protein encoded by this gene catalyzes the penultimate step of the arginine biosynthetic pathway. There are approximately 10 to 14 copies of this gene including the pseudogenes scattered across the human genome, among which the one located on chromosome 9 appears to be the only functional gene for argininosuccinate synthetase. Mutations in the chromosome 9 copy of this gene cause citrullinemia. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Aug 2012]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BP6
Variant 9-130452052-T-C is Benign according to our data. Variant chr9-130452052-T-C is described in ClinVar as [Benign]. Clinvar id is 683297.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.979 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASS1NM_054012.4 linkuse as main transcriptc.-5-172T>C intron_variant ENST00000352480.10
ASS1NM_000050.4 linkuse as main transcriptc.-5-172T>C intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASS1ENST00000352480.10 linkuse as main transcriptc.-5-172T>C intron_variant 1 NM_054012.4 P1
ASS1ENST00000372393.7 linkuse as main transcriptc.-5-172T>C intron_variant 5 P1
ASS1ENST00000372394.5 linkuse as main transcriptc.-6+9T>C intron_variant 2 P1
ASS1ENST00000422569.5 linkuse as main transcriptc.-5-172T>C intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.947
AC:
144125
AN:
152122
Hom.:
68533
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.859
Gnomad AMI
AF:
0.999
Gnomad AMR
AF:
0.975
Gnomad ASJ
AF:
0.949
Gnomad EAS
AF:
1.00
Gnomad SAS
AF:
0.971
Gnomad FIN
AF:
0.964
Gnomad MID
AF:
0.981
Gnomad NFE
AF:
0.985
Gnomad OTH
AF:
0.955
GnomAD3 exomes
AF:
0.974
AC:
136120
AN:
139790
Hom.:
66339
AF XY:
0.974
AC XY:
73312
AN XY:
75276
show subpopulations
Gnomad AFR exome
AF:
0.855
Gnomad AMR exome
AF:
0.986
Gnomad ASJ exome
AF:
0.959
Gnomad EAS exome
AF:
1.00
Gnomad SAS exome
AF:
0.964
Gnomad FIN exome
AF:
0.968
Gnomad NFE exome
AF:
0.985
Gnomad OTH exome
AF:
0.974
GnomAD4 exome
AF:
0.977
AC:
536039
AN:
548662
Hom.:
262034
Cov.:
5
AF XY:
0.977
AC XY:
290060
AN XY:
296822
show subpopulations
Gnomad4 AFR exome
AF:
0.857
Gnomad4 AMR exome
AF:
0.985
Gnomad4 ASJ exome
AF:
0.958
Gnomad4 EAS exome
AF:
1.00
Gnomad4 SAS exome
AF:
0.965
Gnomad4 FIN exome
AF:
0.969
Gnomad4 NFE exome
AF:
0.985
Gnomad4 OTH exome
AF:
0.972
GnomAD4 genome
AF:
0.947
AC:
144233
AN:
152240
Hom.:
68584
Cov.:
32
AF XY:
0.947
AC XY:
70512
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.860
Gnomad4 AMR
AF:
0.975
Gnomad4 ASJ
AF:
0.949
Gnomad4 EAS
AF:
1.00
Gnomad4 SAS
AF:
0.971
Gnomad4 FIN
AF:
0.964
Gnomad4 NFE
AF:
0.985
Gnomad4 OTH
AF:
0.956
Alfa
AF:
0.955
Hom.:
8580
Bravo
AF:
0.944
Asia WGS
AF:
0.979
AC:
3405
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Citrullinemia type I Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
2.1
DANN
Benign
0.80

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.

Other links and lift over

dbSNP: rs1760275; hg19: chr9-133327439; API