Genetic Variant NCALD:p.Ile152Met (chr8-101692819-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_032041.3(NCALD):c.456C>G(p.Ile152Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,626 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: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NCALD
NM_032041.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.46

Variant links:

Genes affected

NCALD (HGNC:7655): (neurocalcin delta) This gene encodes a member of the neuronal calcium sensor (NCS) family of calcium-binding proteins. The protein contains an N-terminal myristoylation signal and four EF-hand calcium binding loops. The protein is cytosolic at resting calcium levels; however, elevated intracellular calcium levels induce a conformational change that exposes the myristoyl group, resulting in protein association with membranes and partial co-localization with the perinuclear trans-golgi network. The protein is thought to be a regulator of G protein-coupled receptor signal transduction. Several alternatively spliced variants of this gene have been determined, all of which encode the same protein; additional variants may exist but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

NCALD links:

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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 rank	MANE	Protein	UniProt
NCALD	NM_032041.3 link	c.456C>G	p.Ile152Met	missense_variant	Exon 3 of 4	ENST00000220931.11	NP_114430.2	P61601B2RB70

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NCALD	ENST00000220931.11 link	c.456C>G	p.Ile152Met	missense_variant	Exon 3 of 4	1	NM_032041.3	ENSP00000220931.6		P61601

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461480

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727040

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000657

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74318

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

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

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 18, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.456C>G (p.I152M) alteration is located in exon 5 (coding exon 2) of the NCALD gene. This alteration results from a C to G substitution at nucleotide position 456, causing the isoleucine (I) at amino acid position 152 to be replaced by a methionine (M). 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

Pathogenic

0.92

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.37

T;T;T;T;T;T

Eigen

Uncertain

0.22

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.97

D;.;.;.;.;D

M_CAP

Uncertain

0.18

MetaRNN

Uncertain

0.74

D;D;D;D;D;D

MetaSVM

Uncertain

-0.18

MutationAssessor

Benign

1.3

L;L;L;L;L;.

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-2.5

N;N;N;N;N;N

REVEL

Pathogenic

0.71

Sift

Uncertain

0.018

D;D;D;D;D;D

Sift4G

Uncertain

0.017

D;D;D;D;D;D

Polyphen

0.87

P;P;P;P;P;.

Vest4

0.79

MutPred

0.50

Loss of methylation at K151 (P = 0.0315);Loss of methylation at K151 (P = 0.0315);Loss of methylation at K151 (P = 0.0315);Loss of methylation at K151 (P = 0.0315);Loss of methylation at K151 (P = 0.0315);Loss of methylation at K151 (P = 0.0315);

MVP

0.81

MPC

1.6

ClinPred

0.91

GERP RS

2.4

Varity_R

0.39

gMVP

0.72

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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