Variant chr19-19216964-C-A 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_004386.3(NCAN):c.11C>A(p.Pro4Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,159,704 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

NCAN
NM_004386.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.67

Variant links:

Genes affected

NCAN (HGNC:2465): (neurocan) Neurocan is a chondroitin sulfate proteoglycan thought to be involved in the modulation of cell adhesion and migration.[supplied by OMIM, Jul 2002]

NCAN 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=0.04216236).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NCAN	NM_004386.3 linkuse as main transcript	c.11C>A	p.Pro4Gln	missense_variant	2/15	ENST00000252575.11	NP_004377.2	O14594A0A024R7M3Q4LE67

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NCAN	ENST00000252575.11 linkuse as main transcript	c.11C>A	p.Pro4Gln	missense_variant	2/15	1	NM_004386.3	ENSP00000252575.4		O14594

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000246

AC:

AN:

121744

Hom.:

AF XY:

0.0000154

AC XY:

AN XY:

65016

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:

0.000243

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000154

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000112

AC:

AN:

1159704

Hom.:

Cov.:

AF XY:

0.0000108

AC XY:

AN XY:

555160

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:

0.000338

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000105

Gnomad4 OTH exome

AF:

0.0000432

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000265

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

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 08, 2024

The c.11C>A (p.P4Q) alteration is located in exon 2 (coding exon 1) of the NCAN gene. This alteration results from a C to A substitution at nucleotide position 11, causing the proline (P) at amino acid position 4 to be replaced by a glutamine (Q). 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

0.088

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.43

CADD

Benign

0.22

DANN

Benign

0.26

DEOGEN2

Benign

0.086

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.027

LIST_S2

Benign

0.20

M_CAP

Uncertain

0.093

MetaRNN

Benign

0.042

MetaSVM

Benign

-0.81

MutationAssessor

Benign

0.34

PrimateAI

Benign

0.25

PROVEAN

Benign

0.030

REVEL

Benign

0.16

Sift

Benign

0.43

Sift4G

Benign

0.36

Polyphen

0.011

Vest4

0.12

MutPred

0.30

Gain of solvent accessibility (P = 0.0374);

MVP

0.19

MPC

0.36

ClinPred

0.016

GERP RS

-6.5

Varity_R

0.023

gMVP

0.42

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