13-110622239-C-T

Variant names:

• chr13-110622239-C-T
• rs138412062
• NM_001242882.2:c.70C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001242882.2(NAXD):​c.70C>T​(p.Arg24Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,366 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R24P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: NAXD NM_001242882.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.00
• Publications: 0 publications found

Genes affected

NAXD (HGNC:25576): (NAD(P)HX dehydratase) Enables ATP-dependent NAD(P)H-hydrate dehydratase activity. Predicted to be involved in metabolite repair. Predicted to be located in cytosol; endoplasmic reticulum; and mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

NAXD Gene-Disease associations (from GenCC):

• NAD(P)HX dehydratase deficiency

  Inheritance: AD, AR Classification: DEFINITIVE, MODERATE Submitted by: Ambry Genetics, Baylor College of Medicine Research Center
• mitochondrial disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.20379123).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001242882.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NAXD	NM_001242882.2	MANE Select	c.70C>T	p.Arg24Cys	missense	Exon 2 of 10	NP_001229811.1	A0A7P0T9D8
	NAXD	NM_018210.4		c.124C>T	p.Arg42Cys	missense	Exon 2 of 10	NP_060680.2	Q8IW45-2
	NAXD	NM_001242881.2		c.124C>T	p.Arg42Cys	missense	Exon 2 of 10	NP_001229810.1	Q8IW45-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NAXD	ENST00000680254.1	MANE Select	c.70C>T	p.Arg24Cys	missense	Exon 2 of 10	ENSP00000505619.1	A0A7P0T9D8
	NAXD	ENST00000309957.3	TSL:2	c.124C>T	p.Arg42Cys	missense	Exon 2 of 10	ENSP00000311984.2	Q8IW45-2
	NAXD	ENST00000679389.1		c.70C>T	p.Arg24Cys	missense	Exon 2 of 10	ENSP00000505318.1	A0A7P0T906

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152146 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000160 AC: 4 AN: 250538 AF XY: 0.0000148

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000545

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000116 AC: 17 AN: 1461220 Hom.: 0 Cov.: 31 AF XY: 0.0000124 AC XY: 9 AN XY: 726900

African (AFR) AF: 0.000120 AC: 4 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44622

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.000252 AC: 10 AN: 39676

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86174

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53322

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111694

Other (OTH) AF: 0.00 AC: 0 AN: 60374

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152146 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74302

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

African (AFR) AF: 0.00 AC: 0 AN: 41420

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5202

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10592

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.091
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	18
DANN	Uncertain	1.0
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.40
FATHMM_MKL	Benign	0.10	N
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.0	L
PhyloP100		1.0
PrimateAI	Benign	0.39	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.10
Sift	Uncertain	0.0050	D
Sift4G	Benign	0.084	T
Polyphen		1.0	D
Vest4		0.21
MutPred		0.51		Gain of methylation at K43 (P = 0.0173)
MVP		0.43
MPC		0.36
ClinPred		0.75	D
GERP RS		3.4
gMVP		0.53
Mutation Taster		=91/9	polymorphism

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

Other links and lift over

dbSNP: rs138412062; hg19: chr13-111274586;