chr3-16270989-C-G

Variant names:

• chr3-16270989-C-G
• rs146704754
• NM_138381.5:c.37C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_138381.5(OXNAD1):​c.37C>G​(p.Arg13Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/24 in silico tools predict a benign 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. R13W) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: OXNAD1 NM_138381.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.118
• Publications: 0 publications found

Genes affected

OXNAD1 (HGNC:25128): (oxidoreductase NAD binding domain containing 1) Predicted to enable oxidoreductase activity. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17555001).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OXNAD1	NM_138381.5	c.37C>G	p.Arg13Gly	missense_variant	Exon 3 of 9	ENST00000285083.10	NP_612390.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OXNAD1	ENST00000285083.10	c.37C>G	p.Arg13Gly	missense_variant	Exon 3 of 9	1	NM_138381.5	ENSP00000285083.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461854 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727224

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111994

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.075
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	14
DANN	Benign	0.91
DEOGEN2	Benign	0.026	T;T;T;T;.
Eigen	Benign	-1.0
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.053	N
LIST_S2	Benign	0.70	T;.;T;.;T
M_CAP	Benign	0.0039	T
MetaRNN	Benign	0.18	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.5	.;L;L;.;.
PhyloP100		0.12
PrimateAI	Benign	0.31	T
PROVEAN	Benign	-1.3	.;N;.;.;.
REVEL	Benign	0.13
Sift	Benign	0.10	.;T;.;.;.
Sift4G	Pathogenic	0.0	D;D;D;D;D
Polyphen		0.0	.;B;B;.;.
Vest4		0.18
MutPred		0.66		.;Loss of sheet (P = 0.0063);Loss of sheet (P = 0.0063);.;Loss of sheet (P = 0.0063);
MVP		0.12
MPC		0.042
ClinPred		0.079	T
GERP RS		1.9
Varity_R		0.083
gMVP		0.30
Mutation Taster		=97/3	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.20		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.20		Position offset: -44

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs146704754; hg19: chr3-16312496;