1-244411376-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001126.5(ADSS2):c.1229C>T(p.Thr410Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADSS2 NM_001126.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.05

Genes affected

ADSS2 (HGNC:292): (adenylosuccinate synthase 2) This gene encodes the enzyme adenylosuccinate synthetase which catalyzes the first committed step in the conversion of inosine monophosphate to adenosine monophosphate. A pseudogene of this gene is found on chromosome 17.[provided by RefSeq, Nov 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30666453).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADSS2	NM_001126.5	c.1229C>T	p.Thr410Ile	missense_variant	12/13	ENST00000366535.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADSS2	ENST00000366535.4	c.1229C>T	p.Thr410Ile	missense_variant	12/13	1	NM_001126.5	P1
ADSS2	ENST00000468215.1	n.798C>T		non_coding_transcript_exon_variant	4/4	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.000164

EpiControl AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 22, 2023

The c.1229C>T (p.T410I) alteration is located in exon 12 (coding exon 12) of the ADSS gene. This alteration results from a C to T substitution at nucleotide position 1229, causing the threonine (T) at amino acid position 410 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.067	T
BayesDel_noAF	Benign	-0.33
Cadd	Uncertain	25
Dann	Uncertain	1.0
DEOGEN2	Benign	0.35	T
Eigen	Uncertain	0.43
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.31	T
MetaSVM	Benign	-0.95	T
MutationAssessor	Uncertain	2.4	M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-3.1	D
REVEL	Benign	0.17
Sift	Benign	0.031	D
Sift4G	Benign	0.084	T
Polyphen		0.69	P
Vest4		0.32
MutPred		0.52		Gain of catalytic residue at T410 (P = 0.256);
MVP		0.10
MPC		0.87
ClinPred		0.90	D
GERP RS		5.8
Varity_R		0.32
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: chr1-244574678;