Variant rs387907291 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP5

The NM_022787.4(NMNAT1):c.817A>G(p.Asn273Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,611,726 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

NMNAT1
NM_022787.4 missense

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.00

Variant links:

Genes affected

NMNAT1 (HGNC:17877): (nicotinamide nucleotide adenylyltransferase 1) This gene encodes an enzyme which catalyzes a key step in the biosynthesis of nicotinamide adenine dinucleotide (NAD). The encoded enzyme is one of several nicotinamide nucleotide adenylyltransferases, and is specifically localized to the cell nucleus. Activity of this protein leads to the activation of a nuclear deacetylase that functions in the protection of damaged neurons. Mutations in this gene have been associated with Leber congenital amaurosis 9. Alternative splicing results in multiple transcript variants. Pseudogenes of this gene are located on chromosomes 1, 3, 4, 14, and 15. [provided by RefSeq, Jul 2014]

NMNAT1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1

In a chain Nicotinamide/nicotinic acid mononucleotide adenylyltransferase 1 (size 278) in uniprot entity NMNA1_HUMAN there are 122 pathogenic changes around while only 6 benign (95%) in NM_022787.4

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 1-9982678-A-G is Pathogenic according to our data. Variant chr1-9982678-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 37135.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr1-9982678-A-G is described in Lovd as [Pathogenic]. Variant chr1-9982678-A-G is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NMNAT1	NM_022787.4 linkuse as main transcript	c.817A>G	p.Asn273Asp	missense_variant	5/5	ENST00000377205.6	NP_073624.2	Q9HAN9A0A024R4E1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
NMNAT1	ENST00000377205.6 linkuse as main transcript	c.817A>G	p.Asn273Asp	missense_variant	5/5	1	NM_022787.4	ENSP00000366410.1	Q9HAN9
NMNAT1	ENST00000496751.1 linkuse as main transcript	c.118+1508A>G		intron_variant		2		ENSP00000467340.1	K7EPD7
NMNAT1	ENST00000462686.1 linkuse as main transcript	n.817A>G		non_coding_transcript_exon_variant	5/6	5		ENSP00000435134.1	Q9HAN9

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00000405

AC:

AN:

247198

Hom.:

AF XY:

0.00000745

AC XY:

AN XY:

134172

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:

0.00000893

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459512

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725942

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

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:

0.0000680

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000825

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Leber congenital amaurosis 9

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 01, 2012

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Uncertain

0.052

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.024

Eigen

Uncertain

0.24

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.87

M_CAP

Uncertain

0.21

MetaRNN

Uncertain

0.67

MetaSVM

Pathogenic

0.96

MutationAssessor

Uncertain

2.6

PrimateAI

Benign

0.40

PROVEAN

Benign

-1.8

REVEL

Uncertain

0.40

Sift

Uncertain

0.024

Sift4G

Benign

0.18

Polyphen

0.92

Vest4

0.71

MutPred

0.24

Gain of relative solvent accessibility (P = 0.0479);

MVP

0.98

MPC

0.074

ClinPred

0.48

GERP RS

3.8

Varity_R

0.38

gMVP

0.56

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