NM_001242835.2:c.68G>A

Variant names:

• chr16-58503844-G-A
• rs148884288
• NM_001242835.2:c.68G>A

Variant summary

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

The NM_001242835.2(NDRG4):​c.68G>A​(p.Arg23Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000787 in 1,613,756 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R23W) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000083 (0 hom.)
• Consequence: NDRG4 NM_001242835.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.52
• Publications: 1 publications found

Genes affected

NDRG4 (HGNC:14466): (NDRG family member 4) This gene is a member of the N-myc downregulated gene family which belongs to the alpha/beta hydrolase superfamily. The protein encoded by this gene is a cytoplasmic protein that is required for cell cycle progression and survival in primary astrocytes and may be involved in the regulation of mitogenic signalling in vascular smooth muscles cells. Alternative splicing results in multiple transcripts encoding different isoforms.[provided by RefSeq, Jun 2011]

NDRG4 Gene-Disease associations (from GenCC):

• achromatopsia

  Inheritance: AR Classification: LIMITED Submitted by: G2P

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=0.32319817).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001242835.2. 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
	NDRG4	NM_001242835.2	MANE Select	c.68G>A	p.Arg23Gln	missense	Exon 2 of 15	NP_001229764.1	A0A0S2Z5R7
	NDRG4	NM_001378332.1		c.314G>A	p.Arg105Gln	missense	Exon 5 of 18	NP_001365261.1
	NDRG4	NM_001378333.1		c.278G>A	p.Arg93Gln	missense	Exon 4 of 17	NP_001365262.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NDRG4	ENST00000570248.6	TSL:1 MANE Select	c.68G>A	p.Arg23Gln	missense	Exon 2 of 15	ENSP00000457659.1	Q9ULP0-1
	NDRG4	ENST00000394282.8	TSL:1	c.224G>A	p.Arg75Gln	missense	Exon 4 of 16	ENSP00000377823.4	Q9ULP0-6
	NDRG4	ENST00000258187.9	TSL:1	c.164G>A	p.Arg55Gln	missense	Exon 4 of 16	ENSP00000258187.5	Q9ULP0-3

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152040 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000517 AC: 13 AN: 251208 AF XY: 0.0000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000968

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000835 AC: 122 AN: 1461716 Hom.: 0 Cov.: 32 AF XY: 0.0000729 AC XY: 53 AN XY: 727146

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44720

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

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

South Asian (SAS) AF: 0.0000348 AC: 3 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53262

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.000101 AC: 112 AN: 1111998

Other (OTH) AF: 0.0000828 AC: 5 AN: 60396

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152040 Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3 AN XY: 74272

African (AFR) AF: 0.0000242 AC: 1 AN: 41390

American (AMR) AF: 0.00 AC: 0 AN: 15274

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5170

South Asian (SAS) AF: 0.00 AC: 0 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

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

European-Non Finnish (NFE) AF: 0.0000588 AC: 4 AN: 67982

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000582 Hom.: 0

Bravo AF: 0.0000416

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.0000545

EpiControl AF: 0.000119

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	0.14
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.21
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.011	T
Eigen	Benign	0.13
Eigen_PC	Benign	0.20
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.021	T
MetaRNN	Benign	0.32	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.50	N
PhyloP100		4.5
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.24
Sift	Benign	0.61	T
Sift4G	Benign	0.43	T
Polyphen		1.0	D
Vest4		0.50
MVP		0.32
MPC		0.35
ClinPred		0.41	T
GERP RS		4.2
PromoterAI		0.039	Neutral
Varity_R		0.14
gMVP		0.75
Mutation Taster		=67/33	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: rs148884288; hg19: chr16-58537748;