Genetic Variant NOMO3:p.Val233Met (chr16-16251042-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3

The NM_001004067.4(NOMO3):c.697G>A(p.Val233Met) variant causes a missense change involving the alteration of a conserved nucleotide. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000032 ( 1 hom., cov: 17)

Exomes 𝑓: 0.0000084 ( 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: 8.94

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 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.827

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOMO3	NM_001004067.4 link	c.697G>A	p.Val233Met	missense_variant	Exon 7 of 31	ENST00000399336.9	NP_001004067.1	P69849Q1LZN2
NOMO3	XM_005255318.2 link	c.697G>A	p.Val233Met	missense_variant	Exon 7 of 32		XP_005255375.1	J3KN36

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOMO3	ENST00000399336.9 link	c.697G>A	p.Val233Met	missense_variant	Exon 7 of 31	1	NM_001004067.4	ENSP00000382274.4		P69849

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

126674

Hom.:

Cov.:

FAILED QC

Gnomad AFR

AF:

0.0000737

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000763

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:

0.0000158

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000843

AC:

AN:

1186850

Hom.:

Cov.:

AF XY:

0.00000846

AC XY:

AN XY:

590796

show subpopulations

Gnomad4 AFR exome

AF:

0.0000500

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000309

Gnomad4 SAS exome

AF:

0.0000149

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000763

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000316

AC:

AN:

126674

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

60932

show subpopulations

Gnomad4 AFR

AF:

0.0000737

Gnomad4 AMR

AF:

0.0000763

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000158

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 23, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.697G>A (p.V233M) alteration is located in exon 7 (coding exon 7) of the NOMO3 gene. This alteration results from a G to A substitution at nucleotide position 697, causing the valine (V) at amino acid position 233 to be replaced by a methionine (M). 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

Pathogenic

0.87

BayesDel_addAF

Benign

0.011

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

T;T

Eigen

Pathogenic

0.74

Eigen_PC

Uncertain

0.65

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Uncertain

0.095

MetaRNN

Pathogenic

0.83

D;D

MetaSVM

Benign

-0.96

MutationAssessor

Uncertain

2.6

M;.

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-2.2

N;N

REVEL

Uncertain

0.31

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.0040

D;D

Polyphen

1.0

D;.

Vest4

0.70

MutPred

0.75

Loss of methylation at K234 (P = 0.0224);Loss of methylation at K234 (P = 0.0224);

MVP

0.19

ClinPred

0.99

GERP RS

3.8

Varity_R

0.40

gMVP

0.61

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