Genetic Variant NVL:p.Ile644Leu (chr1-224281155-T-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_002533.4(NVL):c.1930A>C(p.Ile644Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000103 in 1,613,870 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

NVL
NM_002533.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.56

Variant links:

Genes affected

NVL (HGNC:8070): (nuclear VCP like) This gene encodes a member of the AAA (ATPases associated with diverse cellular activities) superfamily. Multiple transcript variants encoding different isoforms have been found for this gene. Two encoded proteins, described as major and minor isoforms, have been localized to distinct regions of the nucleus. The largest encoded protein (major isoform) has been localized to the nucleolus and shown to participate in ribosome biosynthesis (PMID: 15469983, 16782053), while the minor isoform has been localized to the nucleoplasmin. [provided by RefSeq, Aug 2011]

NVL 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
NVL	NM_002533.4 link	c.1930A>C	p.Ile644Leu	missense_variant	Exon 16 of 23	ENST00000281701.11	NP_002524.2	O15381-1B4DF43

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NVL	ENST00000281701.11 link	c.1930A>C	p.Ile644Leu	missense_variant	Exon 16 of 23	1	NM_002533.4	ENSP00000281701.6		O15381-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000944

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000143

AC:

AN:

251418

Hom.:

AF XY:

0.000132

AC XY:

AN XY:

135876

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000211

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000107

AC:

156

AN:

1461790

Hom.:

Cov.:

AF XY:

0.000102

AC XY:

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000246

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000375

Gnomad4 NFE exome

AF:

0.000119

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74272

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000197

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000944

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.000479

Alfa

AF:

0.000144

Hom.:

Bravo

AF:

0.0000869

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000123

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1930A>C (p.I644L) alteration is located in exon 16 (coding exon 16) of the NVL gene. This alteration results from a A to C substitution at nucleotide position 1930, causing the isoleucine (I) at amino acid position 644 to be replaced by a leucine (L). 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

0.17

BayesDel_addAF

Benign

-0.044

BayesDel_noAF

Uncertain

0.0

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.38

.;.;T;.;.;.

Eigen

Benign

-0.0091

Eigen_PC

Benign

0.098

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.96

D;D;D;D;D;.

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.43

T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.85

.;.;L;.;.;.

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-1.9

.;N;N;.;N;N

REVEL

Pathogenic

0.75

Sift

Uncertain

0.0040

.;D;D;.;D;D

Sift4G

Uncertain

0.0040

D;D;D;D;D;D

Polyphen

0.99

.;.;D;.;.;.

Vest4

0.48

MutPred

0.77

.;.;Gain of sheet (P = 0.0827);.;.;.;

MVP

0.92

MPC

0.48

ClinPred

0.29

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.79

gMVP

0.79

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