Genetic Variant NOP53:p.Ala130Val (chr19-47750277-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015710.5(NOP53):c.389C>T(p.Ala130Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000534 in 1,592,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict 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. A130S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

NOP53
NM_015710.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.395

Variant links:

Genes affected

NOP53 (HGNC:4333): (NOP53 ribosome biogenesis factor) Enables 5S rRNA binding activity; identical protein binding activity; and p53 binding activity. Involved in several processes, including negative regulation of transcription, DNA-templated; regulation of cellular protein metabolic process; and regulation of intracellular signal transduction. Located in cytosol; fibrillar center; and nucleoplasm. Colocalizes with rDNA heterochromatin. [provided by Alliance of Genome Resources, Apr 2022]

NOP53 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.013990045).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOP53	NM_015710.5 link	c.389C>T	p.Ala130Val	missense_variant	Exon 3 of 13	ENST00000246802.10	NP_056525.2	Q9NZM5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOP53	ENST00000246802.10 link	c.389C>T	p.Ala130Val	missense_variant	Exon 3 of 13	1	NM_015710.5	ENSP00000246802.4		Q9NZM5

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000271

AC:

AN:

251300

Hom.:

AF XY:

0.000213

AC XY:

AN XY:

135874

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00194

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000555

AC:

AN:

1440620

Hom.:

Cov.:

AF XY:

0.0000460

AC XY:

AN XY:

717976

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00175

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000335

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000749

Hom.:

Bravo

AF:

0.0000869

ExAC

AF:

0.000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 14, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.389C>T (p.A130V) alteration is located in exon 3 (coding exon 3) of the GLTSCR2 gene. This alteration results from a C to T substitution at nucleotide position 389, causing the alanine (A) at amino acid position 130 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.68

CADD

Benign

DANN

Benign

0.88

DEOGEN2

Benign

0.027

T;.

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.80

T;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.014

T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.65

N;.

REVEL

Benign

0.059

Sift

Benign

0.22

T;.

Sift4G

Benign

0.20

T;T

Polyphen

0.0040

B;.

Vest4

0.15

MutPred

0.51

Loss of ubiquitination at K127 (P = 0.0431);.;

MVP

0.26

MPC

0.20

ClinPred

0.010

GERP RS

0.013

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

Varity_R

0.056

gMVP

0.11

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