Variant 15-73633152-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP4BS2

The NM_012428.4(NPTN):c.64C>T(p.Leu22Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000465 in 1,506,236 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 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000044 ( 0 hom. )

Consequence

NPTN
NM_012428.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.829

Variant links:

Genes affected

NPTN (HGNC:17867): (neuroplastin) This gene encodes a type I transmembrane protein belonging to the Ig superfamily. The protein is believed to be involved in cell-cell interactions or cell-substrate interactions. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2009]

NPTN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant where missense usually causes diseases, NPTN

BP4

Computational evidence support a benign effect (MetaRNN=0.33720553).

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NPTN	NM_012428.4 linkuse as main transcript	c.64C>T	p.Leu22Phe	missense_variant	1/9	ENST00000345330.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NPTN	ENST00000345330.9 linkuse as main transcript	c.64C>T	p.Leu22Phe	missense_variant	1/9	1	NM_012428.4	P4	Q9Y639-2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152152

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

GnomAD4 exome

AF:

0.00000443

AC:

AN:

1354084

Hom.:

Cov.:

AF XY:

0.00000447

AC XY:

AN XY:

671120

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:

0.00000469

Gnomad4 OTH exome

AF:

0.0000180

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74338

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

Bravo

AF:

0.00000378

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

Oct 17, 2023

The c.64C>T (p.L22F) alteration is located in exon 1 (coding exon 1) of the NPTN gene. This alteration results from a C to T substitution at nucleotide position 64, causing the leucine (L) at amino acid position 22 to be replaced by a phenylalanine (F). 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

0.059

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.082

T;.;T;.;.

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.11

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.40

T;T;T;T;T

M_CAP

Pathogenic

0.86

MetaRNN

Benign

0.34

T;T;T;T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

0.0

N;N;.;N;N

MutationTaster

Benign

0.93

N;N;N;N;N;N;N

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-1.3

N;N;N;N;N

REVEL

Benign

0.14

Sift

Benign

0.25

T;T;D;T;T

Sift4G

Benign

0.21

T;T;.;T;T

Polyphen

0.98

D;.;.;D;D

Vest4

0.14

MVP

0.56

MPC

0.91

ClinPred

0.48

GERP RS

3.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Varity_R

0.076

gMVP

0.34

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