chr9-130452131-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_054012.4(ASS1):​c.-5-93C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00108 in 1,123,830 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0050 ( 8 hom., cov: 32)
Exomes 𝑓: 0.00047 ( 5 hom. )

Consequence

ASS1
NM_054012.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0590
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=-0.62).
BP6
Variant 9-130452131-C-T is Benign according to our data. Variant chr9-130452131-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1214955.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00495 (754/152262) while in subpopulation AFR AF= 0.0175 (728/41554). AF 95% confidence interval is 0.0165. There are 8 homozygotes in gnomad4. There are 374 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ASS1NM_054012.4 linkuse as main transcriptc.-5-93C>T intron_variant ENST00000352480.10
ASS1NM_000050.4 linkuse as main transcriptc.-5-93C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ASS1ENST00000352480.10 linkuse as main transcriptc.-5-93C>T intron_variant 1 NM_054012.4 P1
ASS1ENST00000372393.7 linkuse as main transcriptc.-5-93C>T intron_variant 5 P1
ASS1ENST00000372394.5 linkuse as main transcriptc.-6+88C>T intron_variant 2 P1
ASS1ENST00000422569.5 linkuse as main transcriptc.-5-93C>T intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00496
AC:
754
AN:
152142
Hom.:
8
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0176
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
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:
0.0000147
Gnomad OTH
AF:
0.00144
GnomAD4 exome
AF:
0.000474
AC:
461
AN:
971568
Hom.:
5
Cov.:
13
AF XY:
0.000426
AC XY:
212
AN XY:
497968
show subpopulations
Gnomad4 AFR exome
AF:
0.0159
Gnomad4 AMR exome
AF:
0.000702
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000582
Gnomad4 OTH exome
AF:
0.00125
GnomAD4 genome
AF:
0.00495
AC:
754
AN:
152262
Hom.:
8
Cov.:
32
AF XY:
0.00502
AC XY:
374
AN XY:
74462
show subpopulations
Gnomad4 AFR
AF:
0.0175
Gnomad4 AMR
AF:
0.00144
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.00416
Hom.:
0
Bravo
AF:
0.00559
Asia WGS
AF:
0.00173
AC:
7
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 09, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.62
CADD
Benign
5.4
DANN
Benign
0.58
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs75950322; hg19: chr9-133327518; API