NM_000904.6:c.277C>T

Variant names:

• chr6-3012648-C-T
• rs1171989906
• NM_000904.6:c.277C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_000904.6(NQO2):​c.277C>T​(p.Arg93Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,613,724 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000015 (0 hom.)
• Consequence: NQO2 NM_000904.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.471
• Publications: 2 publications found

Genes affected

NQO2 (HGNC:7856): (N-ribosyldihydronicotinamide:quinone dehydrogenase 2) This gene encodes a member of the thioredoxin family of enzymes. It is a cytosolic and ubiquitously expressed flavoprotein that catalyzes the two-electron reduction of quinone substrates and uses dihydronicotinamide riboside as a reducing coenzyme. Mutations in this gene have been associated with neurodegenerative diseases and several cancers. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3151858).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000904.6. 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
	NQO2	NM_000904.6	MANE Select	c.277C>T	p.Arg93Trp	missense	Exon 4 of 7	NP_000895.2	P16083
	NQO2	NM_001290221.2		c.277C>T	p.Arg93Trp	missense	Exon 7 of 10	NP_001277150.1	P16083
	NQO2	NM_001318940.2		c.277C>T	p.Arg93Trp	missense	Exon 4 of 7	NP_001305869.1	P16083

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NQO2	ENST00000380455.11	TSL:1 MANE Select	c.277C>T	p.Arg93Trp	missense	Exon 4 of 7	ENSP00000369822.4	P16083
	NQO2	ENST00000952452.1		c.322C>T	p.Arg108Trp	missense	Exon 4 of 7	ENSP00000622511.1
	NQO2	ENST00000338130.7	TSL:2	c.277C>T	p.Arg93Trp	missense	Exon 7 of 10	ENSP00000337773.2	P16083

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152136 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000241

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251144 AF XY: 0.00000737

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000151 AC: 22 AN: 1461588 Hom.: 0 Cov.: 32 AF XY: 0.00000963 AC XY: 7 AN XY: 727100

African (AFR) AF: 0.00 AC: 0 AN: 33468

American (AMR) AF: 0.00 AC: 0 AN: 44666

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39686

South Asian (SAS) AF: 0.0000812 AC: 7 AN: 86202

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000126 AC: 14 AN: 1111872

Other (OTH) AF: 0.0000166 AC: 1 AN: 60380

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152136 Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1 AN XY: 74316

African (AFR) AF: 0.0000241 AC: 1 AN: 41408

American (AMR) AF: 0.00 AC: 0 AN: 15278

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: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.42
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.35	T
Eigen	Uncertain	0.43
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Benign	0.14	N
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.050	D
MetaRNN	Benign	0.32	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		0.47
PrimateAI	Benign	0.22	T
PROVEAN	Uncertain	-3.5	D
REVEL	Benign	0.12
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.017	D
Polyphen		0.99	D
Vest4		0.21
MutPred		0.52		Loss of disorder (P = 0.0149)
MVP		0.28
MPC		0.37
ClinPred		0.93	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.24
gMVP		0.58
Mutation Taster		=84/16	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs1171989906; hg19: chr6-3012882; COSMIC: COSV107432820; COSMIC: COSV107432820;