Variant 8-143576494-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_145201.6(NAPRT):c.960C>T(p.Asp320=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00263 in 1,612,574 control chromosomes in the GnomAD database, including 74 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.011 ( 34 hom., cov: 30)

Exomes 𝑓: 0.0018 ( 40 hom. )

Consequence

NAPRT
NM_145201.6 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.53

Variant links:

Genes affected

NAPRT (HGNC:30450): (nicotinate phosphoribosyltransferase) Nicotinic acid (NA; niacin) is converted by nicotinic acid phosphoribosyltransferase (NAPRT; EC 2.4.2.11) to NA mononucleotide (NaMN), which is then converted to NA adenine dinucleotide (NaAD), and finally to nicotinamide adenine dinucleotide (NAD), which serves as a coenzyme in cellular redox reactions and is an essential component of a variety of processes in cellular metabolism including response to stress (Hara et al., 2007).[supplied by OMIM, Mar 2008]

NAPRT links:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.42).

BP6

Variant 8-143576494-G-A is Benign according to our data. Variant chr8-143576494-G-A is described in ClinVar as [Benign]. Clinvar id is 780131.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=3.53 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0109 (1662/152168) while in subpopulation AFR AF= 0.0353 (1464/41526). AF 95% confidence interval is 0.0338. There are 34 homozygotes in gnomad4. There are 784 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 34 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NAPRT	NM_145201.6 linkuse as main transcript	c.960C>T	p.Asp320=	synonymous_variant	7/13	ENST00000449291.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NAPRT	ENST00000449291.7 linkuse as main transcript	c.960C>T	p.Asp320=	synonymous_variant	7/13	1	NM_145201.6	P1	Q6XQN6-1
	ENST00000531730.1 linkuse as main transcript	n.437-167G>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0109

AC:

1661

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0353

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00668

Gnomad ASJ

AF:

0.00346

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0158

Gnomad NFE

AF:

0.000927

Gnomad OTH

AF:

0.00622

GnomAD3 exomes

AF:

0.00367

AC:

915

AN:

249214

Hom.:

AF XY:

0.00283

AC XY:

383

AN XY:

135250

show subpopulations

Gnomad AFR exome

AF:

0.0364

Gnomad AMR exome

AF:

0.00464

Gnomad ASJ exome

AF:

0.00391

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000981

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000944

Gnomad OTH exome

AF:

0.00378

GnomAD4 exome

AF:

0.00176

AC:

2574

AN:

1460406

Hom.:

Cov.:

AF XY:

0.00168

AC XY:

1218

AN XY:

726510

show subpopulations

Gnomad4 AFR exome

AF:

0.0357

Gnomad4 AMR exome

AF:

0.00522

Gnomad4 ASJ exome

AF:

0.00463

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000104

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000626

Gnomad4 OTH exome

AF:

0.00451

GnomAD4 genome

AF:

0.0109

AC:

1662

AN:

152168

Hom.:

Cov.:

AF XY:

0.0105

AC XY:

784

AN XY:

74402

show subpopulations

Gnomad4 AFR

AF:

0.0353

Gnomad4 AMR

AF:

0.00667

Gnomad4 ASJ

AF:

0.00346

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000927

Gnomad4 OTH

AF:

0.00616

Alfa

AF:

0.00390

Hom.:

Bravo

AF:

0.0130

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.00125

EpiControl

AF:

0.000830

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 19, 2018	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.42

CADD

Benign

8.0

DANN

Benign

0.89

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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