Variant 21-21324491-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004540.5(NCAM2):c.728C>T(p.Ser243Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000274 in 1,608,380 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

NCAM2
NM_004540.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.230

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 Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NCAM2	NM_004540.5 linkuse as main transcript	c.728C>T	p.Ser243Phe	missense_variant	6/18	ENST00000400546.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NCAM2	ENST00000400546.6 linkuse as main transcript	c.728C>T	p.Ser243Phe	missense_variant	6/18	1	NM_004540.5	P1	O15394-1
NCAM2	ENST00000284894.8 linkuse as main transcript	c.674C>T	p.Ser225Phe	missense_variant	5/17	5
NCAM2	ENST00000461281.1 linkuse as main transcript	n.322C>T		non_coding_transcript_exon_variant	3/5	3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152068

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:

0.0000120

AC:

AN:

249266

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135246

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:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000295

AC:

AN:

1456312

Hom.:

Cov.:

AF XY:

0.0000331

AC XY:

AN XY:

724962

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:

0.0000388

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152068

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74270

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:

0.0000312

Hom.:

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

Mar 12, 2024

The c.728C>T (p.S243F) alteration is located in exon 6 (coding exon 6) of the NCAM2 gene. This alteration results from a C to T substitution at nucleotide position 728, causing the serine (S) at amino acid position 243 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

0.27

BayesDel_addAF

Benign

-0.016

BayesDel_noAF

Benign

-0.25

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.38

T;T

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.78

T;T

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.52

D;D

MetaSVM

Benign

-0.36

MutationAssessor

Benign

1.6

L;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-4.1

D;.

REVEL

Uncertain

0.51

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.0030

D;D

Polyphen

0.99

D;.

Vest4

0.35

MutPred

0.61

Loss of disorder (P = 0.0132);.;

MVP

0.54

MPC

0.39

ClinPred

0.99

GERP RS

2.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.3

Varity_R

0.55

gMVP

0.53

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