Genetic Variant NOL4:p.Thr270Ala (chr18-34019566-T-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_003787.5(NOL4):c.808A>G(p.Thr270Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000156 in 1,613,516 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

NOL4
NM_003787.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.24

Variant links:

Genes affected

NOL4 (HGNC:7870): (nucleolar protein 4) Predicted to enable RNA binding activity. Predicted to be located in nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

NOL4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.15292996).

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOL4	NM_003787.5 link	c.808A>G	p.Thr270Ala	missense_variant	Exon 6 of 11	ENST00000261592.10	NP_003778.2	O94818-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOL4	ENST00000261592.10 link	c.808A>G	p.Thr270Ala	missense_variant	Exon 6 of 11	1	NM_003787.5	ENSP00000261592.4		O94818-1

Frequencies

GnomAD3 genomes

AF:

0.0000658

AC:

AN:

151948

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000718

AC:

AN:

250652

Hom.:

AF XY:

0.0000812

AC XY:

AN XY:

135418

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000579

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:

0.000124

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000165

AC:

241

AN:

1461568

Hom.:

Cov.:

AF XY:

0.000164

AC XY:

119

AN XY:

727072

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000203

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000658

AC:

AN:

151948

Hom.:

Cov.:

AF XY:

0.0000809

AC XY:

AN XY:

74168

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000131

Hom.:

Bravo

AF:

0.0000756

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.000164

EpiControl

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

Feb 05, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.808A>G (p.T270A) alteration is located in exon 6 (coding exon 6) of the NOL4 gene. This alteration results from a A to G substitution at nucleotide position 808, causing the threonine (T) at amino acid position 270 to be replaced by an alanine (A). 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

0.067

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.19

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.036

T;.;.;T;.

Eigen

Benign

-0.0086

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.80

T;T;T;T;T

M_CAP

Benign

0.037

MetaRNN

Benign

0.15

T;T;T;T;T

MetaSVM

Uncertain

-0.078

MutationAssessor

Benign

1.6

L;L;.;.;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.64

N;.;N;.;.

REVEL

Benign

0.25

Sift

Benign

0.35

T;.;T;.;.

Sift4G

Benign

0.77

T;T;T;T;T

Polyphen

0.25

B;B;.;.;.

Vest4

0.36

MVP

0.53

MPC

0.16

ClinPred

0.065

GERP RS

4.4

Varity_R

0.11

gMVP

0.35

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