Variant chr4-163128940-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_138386.3(NAF1):c.1442C>T(p.Pro481Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.0000057 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

NAF1
NM_138386.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.73

Variant links:

Genes affected

NAF1 (HGNC:25126): (nuclear assembly factor 1 ribonucleoprotein) Enables identical protein binding activity and telomerase RNA binding activity. Involved in regulation of nucleobase-containing compound metabolic process; ribosome biogenesis; and telomerase holoenzyme complex assembly. Located in nucleoplasm. Part of sno(s)RNA-containing ribonucleoprotein complex. [provided by Alliance of Genome Resources, Apr 2022]

NAF1 links:

NAF1 (HGNC:):

NAF1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.15153405).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NAF1	NM_138386.3 linkuse as main transcript	c.1442C>T	p.Pro481Leu	missense_variant	8/8	ENST00000274054.3	NP_612395.2	Q96HR8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
NAF1	ENST00000274054.3 linkuse as main transcript	c.1442C>T	p.Pro481Leu	missense_variant	8/8	1	NM_138386.3	ENSP00000274054.2	Q96HR8-1
NAF1	ENST00000422287.6 linkuse as main transcript	c.1034-1825C>T		intron_variant		1		ENSP00000408963.2	Q96HR8-2
NAF1	ENST00000509434.5 linkuse as main transcript	c.114+8259C>T		intron_variant		3		ENSP00000427518.1	D6RIB3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000466

AC:

AN:

214470

Hom.:

AF XY:

0.00

AC XY:

AN XY:

114642

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000104

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000574

AC:

AN:

1393462

Hom.:

Cov.:

AF XY:

0.00000290

AC XY:

AN XY:

689960

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000751

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000826

AC:

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

Labcorp Genetics (formerly Invitae), Labcorp

Jul 03, 2022

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 are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with NAF1-related conditions. This variant is present in population databases (rs771962783, gnomAD 0.001%). This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 481 of the NAF1 protein (p.Pro481Leu). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.43

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.059

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.38

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.61

M_CAP

Benign

0.012

MetaRNN

Benign

0.15

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.0

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.083

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0030

Polyphen

0.27

Vest4

0.29

MutPred

0.16

Loss of glycosylation at P476 (P = 0.0012);

MVP

0.40

MPC

0.11

ClinPred

0.46

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.061

gMVP

0.19

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