Variant 19-47021096-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_002517.4(NPAS1):c.49G>T(p.Val17Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 1,604,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

NPAS1
NM_002517.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.893

Variant links:

Genes affected

NPAS1 (HGNC:7894): (neuronal PAS domain protein 1) The protein encoded by this gene is a member of the basic helix-loop-helix (bHLH)-PAS family of transcription factors. Studies of a related mouse gene suggest that it functions in neurons. The exact function of this gene is unclear, but it may play protective or modulatory roles during late embryogenesis and postnatal development. [provided by RefSeq, Jul 2008]

NPAS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.021346956).

BS2

High AC in GnomAd4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NPAS1	NM_002517.4 linkuse as main transcript	c.49G>T	p.Val17Leu	missense_variant	2/12	ENST00000602212.6	NP_002508.2	Q99742-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
NPAS1	ENST00000602212.6 linkuse as main transcript	c.49G>T	p.Val17Leu	missense_variant	2/12	1	NM_002517.4	ENSP00000469142.1	Q99742-1
NPAS1	ENST00000449844.6 linkuse as main transcript	c.49G>T	p.Val17Leu	missense_variant	1/11	1		ENSP00000405290.1	Q99742-1
NPAS1	ENST00000602189.5 linkuse as main transcript	c.-171+1099G>T		intron_variant		5		ENSP00000472679.1	M0R2M8

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000218

AC:

AN:

229314

Hom.:

AF XY:

0.0000316

AC XY:

AN XY:

126670

show subpopulations

Gnomad AFR exome

AF:

0.000393

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000344

AC:

AN:

1451848

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

722242

show subpopulations

Gnomad4 AFR exome

AF:

0.000155

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000105

AC:

AN:

152158

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74396

show subpopulations

Gnomad4 AFR

AF:

0.000385

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000756

ExAC

AF:

0.0000415

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 09, 2022

The c.49G>T (p.V17L) alteration is located in exon 1 (coding exon 1) of the NPAS1 gene. This alteration results from a G to T substitution at nucleotide position 49, causing the valine (V) at amino acid position 17 to be replaced by a leucine (L). 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

0.10

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.62

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.046

T;T

Eigen

Benign

-0.79

Eigen_PC

Benign

-0.68

FATHMM_MKL

Benign

0.60

LIST_S2

Benign

0.48

.;T

M_CAP

Benign

0.016

MetaRNN

Benign

0.021

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.55

N;N

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-0.36

.;N

REVEL

Benign

0.050

Sift

Benign

0.10

.;T

Sift4G

Benign

0.17

T;T

Polyphen

0.0

B;B

Vest4

0.13

MutPred

0.21

Gain of catalytic residue at V17 (P = 0.0371);Gain of catalytic residue at V17 (P = 0.0371);

MVP

0.18

MPC

0.58

ClinPred

0.069

GERP RS

-0.19

Varity_R

0.11

gMVP

0.41

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