Variant 21-21286403-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004540.5(NCAM2):c.472A>G(p.Ile158Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 1,611,934 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

NCAM2
NM_004540.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.27

Variant links:

Genes affected

NCAM2 (HGNC:7657): (neural cell adhesion molecule 2) The protein encoded by this gene belongs to the immunoglobulin superfamily. It is a type I membrane protein and may function in selective fasciculation and zone-to-zone projection of the primary olfactory axons. [provided by RefSeq, Jul 2008]

NCAM2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.043271482).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NCAM2	NM_004540.5 link	c.472A>G	p.Ile158Val	missense_variant	4/18	ENST00000400546.6	NP_004531.2	O15394-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
NCAM2	ENST00000400546.6 link	c.472A>G	p.Ile158Val	missense_variant	4/18	1	NM_004540.5	ENSP00000383392.1	O15394-1
NCAM2	ENST00000284894.8 link	c.418A>G	p.Ile140Val	missense_variant	3/17	5		ENSP00000284894.8	H9KV31
NCAM2	ENST00000486367.1 link	n.487A>G		non_coding_transcript_exon_variant	4/5	3

Frequencies

GnomAD3 genomes

AF:

0.0000922

AC:

AN:

151892

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

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:

0.0000363

AC:

AN:

247936

Hom.:

AF XY:

0.0000223

AC XY:

AN XY:

134528

show subpopulations

Gnomad AFR exome

AF:

0.000519

Gnomad AMR exome

AF:

0.0000292

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:

0.0000123

AC:

AN:

1459924

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726230

show subpopulations

Gnomad4 AFR exome

AF:

0.000449

Gnomad4 AMR exome

AF:

0.0000448

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:

0.0000166

GnomAD4 genome

AF:

0.0000921

AC:

AN:

152010

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.000337

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

Alfa

AF:

0.0000660

Hom.:

Bravo

AF:

0.000128

ESP6500AA

AF:

0.000762

AC:

ESP6500EA

AF:

0.000120

AC:

ExAC

AF:

0.0000414

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

Oct 03, 2022

The c.472A>G (p.I158V) alteration is located in exon 4 (coding exon 4) of the NCAM2 gene. This alteration results from a A to G substitution at nucleotide position 472, causing the isoleucine (I) at amino acid position 158 to be replaced by a valine (V). 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

0.086

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.035

T;T

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.23

FATHMM_MKL

Benign

0.70

LIST_S2

Benign

0.69

T;T

M_CAP

Benign

0.0065

MetaRNN

Benign

0.043

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;.

PrimateAI

Benign

0.39

PROVEAN

Benign

0.23

N;.

REVEL

Benign

0.018

Sift

Benign

0.19

T;.

Sift4G

Benign

0.26

T;T

Polyphen

0.0030

B;.

Vest4

0.24

MVP

0.17

MPC

0.062

ClinPred

0.020

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.064

gMVP

0.22

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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