rs773071023

Variant names:

• chr7-66092817-G-A
• NM_000048.4:c.1300G>A

Your query was ambiguous. Multiple possible variants found:

• chr7-66092817-G-A
• chr7-66092817-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PM5 PP3_Moderate

The NM_000048.4(ASL):​c.1300G>A​(p.Val434Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. V434L) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ASL NM_000048.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.54

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]

ENSG00000249319 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr7-66092817-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 557968.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=2, Pathogenic=1, Likely_pathogenic=1}.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.911

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ASL	NM_000048.4	c.1300G>A	p.Val434Met	missense_variant	Exon 17 of 17	ENST00000304874.14	NP_000039.2
ASL	NM_001024943.2	c.1300G>A	p.Val434Met	missense_variant	Exon 16 of 16		NP_001020114.1
ASL	NM_001024944.2	c.1240G>A	p.Val414Met	missense_variant	Exon 15 of 15		NP_001020115.1
ASL	NM_001024946.2	c.1222G>A	p.Val408Met	missense_variant	Exon 15 of 15		NP_001020117.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ASL	ENST00000304874.14	c.1300G>A	p.Val434Met	missense_variant	Exon 17 of 17	1	NM_000048.4	ENSP00000307188.9
ENSG00000249319	ENST00000450043.2	c.563+154G>A		intron_variant	Intron 7 of 11	5		ENSP00000396527.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.59
BayesDel_addAF	Pathogenic	0.50	D
BayesDel_noAF	Pathogenic	0.48
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.96	D;.;D;.
Eigen	Pathogenic	0.83
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Pathogenic	0.99	.;D;D;D
M_CAP	Pathogenic	0.94	D
MetaRNN	Pathogenic	0.91	D;D;D;D
MetaSVM	Pathogenic	0.99	D
MutationAssessor	Uncertain	2.5	M;.;M;.
PrimateAI	Uncertain	0.74	T
PROVEAN	Uncertain	-2.5	D;D;D;D
REVEL	Pathogenic	0.90
Sift	Uncertain	0.0010	D;D;D;D
Sift4G	Uncertain	0.013	D;D;D;D
Polyphen		1.0	D;.;D;.
Vest4		0.82
MutPred		0.57		Gain of disorder (P = 0.0789);.;Gain of disorder (P = 0.0789);.;
MVP		0.95
MPC		0.93
ClinPred		0.95	D
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.78
gMVP		0.82

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr7-65557804;