4-122411305-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_139243.4(ADAD1):c.932C>G(p.Ser311Cys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADAD1 NM_139243.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.78

Genes affected

ADAD1 (HGNC:30713): (adenosine deaminase domain containing 1) Predicted to enable double-stranded RNA adenosine deaminase activity; double-stranded RNA binding activity; and tRNA-specific adenosine deaminase activity. Predicted to be involved in RNA processing and adenosine to inosine editing. Predicted to act upstream of or within spermatid development. Predicted to be located in nucleus. Predicted to be active in cytoplasm and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADAD1	NM_139243.4	c.932C>G	p.Ser311Cys	missense_variant	9/13	ENST00000296513.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADAD1	ENST00000296513.7	c.932C>G	p.Ser311Cys	missense_variant	9/13	2	NM_139243.4	P1
ADAD1	ENST00000388724.6	c.899C>G	p.Ser300Cys	missense_variant	8/12	1
ADAD1	ENST00000388725.2	c.878C>G	p.Ser293Cys	missense_variant	8/12	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

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

Apr 26, 2023

The c.932C>G (p.S311C) alteration is located in exon 9 (coding exon 7) of the ADAD1 gene. This alteration results from a C to G substitution at nucleotide position 932, causing the serine (S) at amino acid position 311 to be replaced by a cysteine (C). 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	0.12
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.010
Cadd	Uncertain	25
Dann	Uncertain	0.99
DEOGEN2	Uncertain	0.73	D;.;.
Eigen	Pathogenic	0.79
Eigen_PC	Pathogenic	0.80
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.87	D;D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Uncertain	0.73	D;D;D
MetaSVM	Pathogenic	0.91	D
MutationAssessor	Uncertain	2.4	M;.;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Benign	0.48	T
PROVEAN	Uncertain	-3.2	D;D;D
REVEL	Pathogenic	0.67
Sift	Uncertain	0.017	D;D;D
Sift4G	Uncertain	0.018	D;D;D
Polyphen		1.0	D;D;.
Vest4		0.50
MutPred		0.57		Loss of sheet (P = 0.1398);.;.;
MVP		0.67
MPC		0.60
ClinPred		0.98	D
GERP RS		5.7
Varity_R		0.22
gMVP		0.55

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: chr4-123332460; COSMIC: COSV56641086; COSMIC: COSV56641086;