Genetic Variant NOMO3:p.Arg418Cys (chr16-16261533-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001004067.4(NOMO3):c.1252C>T(p.Arg418Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000111 in 1,447,370 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000071 ( 0 hom., cov: 27)

Exomes 𝑓: 0.000011 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

NOMO3
NM_001004067.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.18

Variant links:

Genes affected

NOMO3 (HGNC:25242): (NODAL modulator 3) This gene encodes a protein originally thought to be related to the collagenase gene family. This gene is one of three highly similar genes in a duplicated region on the short arm of chromosome 16. These three genes encode closely related proteins that may have the same function. The protein encoded by one of these genes has been identified as part of a protein complex that participates in the Nodal signaling pathway during vertebrate development. Mutations in ABCC6, which is located nearby, rather than mutations in this gene are associated with pseudoxanthoma elasticum. [provided by RefSeq, Jul 2008]

NOMO3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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 rank	MANE	Protein	UniProt
NOMO3	NM_001004067.4 link	c.1252C>T	p.Arg418Cys	missense_variant	Exon 12 of 31	ENST00000399336.9	NP_001004067.1	P69849Q1LZN2
NOMO3	XM_005255318.2 link	c.1252C>T	p.Arg418Cys	missense_variant	Exon 12 of 32		XP_005255375.1	J3KN36

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOMO3	ENST00000399336.9 link	c.1252C>T	p.Arg418Cys	missense_variant	Exon 12 of 31	1	NM_001004067.4	ENSP00000382274.4		P69849

Frequencies

GnomAD3 genomes

AF:

0.00000710

AC:

AN:

140888

Hom.:

Cov.:

show subpopulations

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000302

AC:

AN:

198726

Hom.:

AF XY:

0.0000370

AC XY:

AN XY:

107996

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000626

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000111

AC:

AN:

1447370

Hom.:

Cov.:

AF XY:

0.0000125

AC XY:

AN XY:

720126

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000118

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000135

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000710

AC:

AN:

140888

Hom.:

Cov.:

AF XY:

0.0000146

AC XY:

AN XY:

68504

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000148

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000337

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1252C>T (p.R418C) alteration is located in exon 12 (coding exon 12) of the NOMO3 gene. This alteration results from a C to T substitution at nucleotide position 1252, causing the arginine (R) at amino acid position 418 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

0.13

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.032

T;T

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.94

D;D

M_CAP

Uncertain

0.098

MetaRNN

Uncertain

0.60

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;.

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-2.2

N;N

REVEL

Benign

0.24

Sift

Benign

0.046

D;D

Sift4G

Uncertain

0.031

D;D

Polyphen

1.0

D;.

Vest4

0.54

MutPred

0.63

Loss of MoRF binding (P = 0.0693);Loss of MoRF binding (P = 0.0693);

MVP

0.41

ClinPred

0.61

GERP RS

3.8

Varity_R

0.19

gMVP

0.57

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over