Variant rs727503813 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_054012.4(ASS1):c.961G>A(p.Val321Met) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,844 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 (★★). Synonymous variant affecting the same amino acid position (i.e. V321V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ASS1
NM_054012.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.31

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]

ASS1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a helix (size 19) in uniprot entity ASSY_HUMAN there are 16 pathogenic changes around while only 0 benign (100%) in NM_054012.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.926

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASS1	NM_054012.4 linkuse as main transcript	c.961G>A	p.Val321Met	missense_variant	12/15	ENST00000352480.10
ASS1	NM_000050.4 linkuse as main transcript	c.961G>A	p.Val321Met	missense_variant	13/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASS1	ENST00000352480.10 linkuse as main transcript	c.961G>A	p.Val321Met	missense_variant	12/15	1	NM_054012.4	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461844

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727230

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Dec 27, 2013

- -

Citrullinemia type I

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

Jan 12, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.59

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.92

D;D;D

Eigen

Pathogenic

0.69

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.90

.;.;D

M_CAP

Uncertain

0.23

MetaRNN

Pathogenic

0.93

D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

3.2

M;M;M

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-2.3

N;N;N

REVEL

Pathogenic

0.85

Sift

Uncertain

0.0080

D;D;D

Sift4G

Uncertain

0.052

T;T;T

Polyphen

1.0

D;D;D

Vest4

0.82

MutPred

0.71

Loss of stability (P = 0.1309);Loss of stability (P = 0.1309);Loss of stability (P = 0.1309);

MVP

0.97

MPC

0.84

ClinPred

0.96

GERP RS

4.5

Varity_R

0.42

gMVP

0.74

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over