X-153930132-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM1BP4_Moderate

The NM_003491.4(NAA10):c.563C>T(p.Pro188Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000232 in 1,208,943 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. 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 (★). Synonymous variant affecting the same amino acid position (i.e. P188P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.000023 ( 0 hom. 8 hem. )

Consequence

NAA10
NM_003491.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.909

Variant links:

Genes affected

NAA10 (HGNC:18704): (N-alpha-acetyltransferase 10, NatA catalytic subunit) N-alpha-acetylation is among the most common post-translational protein modifications in eukaryotic cells. This process involves the transfer of an acetyl group from acetyl-coenzyme A to the alpha-amino group on a nascent polypeptide and is essential for normal cell function. This gene encodes an N-terminal acetyltransferase that functions as the catalytic subunit of the major amino-terminal acetyltransferase A complex. Mutations in this gene are the cause of Ogden syndrome. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2012]

NAA10 links:

ARHGAP4 (HGNC:674): (Rho GTPase activating protein 4) This gene encodes a member of the rhoGAP family of proteins which play a role in the regulation of small GTP-binding proteins belonging to the RAS superfamily. The protein encoded by the orthologous gene in rat is localized to the Golgi complex and can redistribute to microtubules. The rat protein stimulates the activity of some Rho GTPases in vitro. Genomic deletions of this gene and a neighboring gene have been found in patients with nephrogenic diabetes insipidus. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

ARHGAP4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM1

In a chain N-alpha-acetyltransferase 10 (size 234) in uniprot entity NAA10_HUMAN there are 32 pathogenic changes around while only 4 benign (89%) in NM_003491.4

BP4

Computational evidence support a benign effect (MetaRNN=0.10422698).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
NAA10	NM_003491.4 linkuse as main transcript	c.563C>T	p.Pro188Leu	missense_variant	8/8	ENST00000464845.6
NAA10	NM_001256120.2 linkuse as main transcript	c.545C>T	p.Pro182Leu	missense_variant	8/8
NAA10	NM_001256119.2 linkuse as main transcript	c.518C>T	p.Pro173Leu	missense_variant	7/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NAA10	ENST00000464845.6 linkuse as main transcript	c.563C>T	p.Pro188Leu	missense_variant	8/8	1	NM_003491.4	P1	P41227-1

Frequencies

GnomAD3 genomes

AF:

0.0000271

AC:

AN:

110901

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33091

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000954

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:

0.0000189

Gnomad OTH

AF:

0.000669

GnomAD3 exomes

AF:

0.0000164

AC:

AN:

182660

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

67234

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000730

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:

0.0000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000228

AC:

AN:

1098042

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

363404

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000568

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:

0.0000261

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

AF:

0.0000271

AC:

AN:

110901

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33091

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000954

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000189

Gnomad4 OTH

AF:

0.000669

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

May 15, 2023

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. ClinVar contains an entry for this variant (Variation ID: 1401268). This variant has not been reported in the literature in individuals affected with NAA10-related conditions. This variant is present in population databases (rs199692558, gnomAD 0.01%), including at least one homozygous and/or hemizygous individual. This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 188 of the NAA10 protein (p.Pro188Leu). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.82

Cadd

Benign

Dann

Benign

0.87

DEOGEN2

Benign

0.24

T;.

FATHMM_MKL

Benign

0.084

LIST_S2

Benign

0.82

T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.10

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.8

N;N

REVEL

Benign

0.021

Sift

Benign

0.11

T;T

Sift4G

Benign

0.20

T;T

Polyphen

0.0040

B;.

Vest4

0.045

MutPred

0.13

Loss of glycosylation at P188 (P = 0.0408);.;

MVP

0.75

MPC

0.61

ClinPred

0.052

GERP RS

2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.036

gMVP

0.41

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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