Genetic Variant INCA1:p.Glu168Lys (chr17-4988838-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001394789.1(INCA1):c.502G>A(p.Glu168Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,614,132 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 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: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

INCA1
NM_001394789.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.733

Variant links:

Genes affected

INCA1 (HGNC:32224): (inhibitor of CDK, cyclin A1 interacting protein 1) Enables cyclin binding activity; cyclin-dependent protein serine/threonine kinase inhibitor activity; and identical protein binding activity. Acts upstream of or within negative regulation of cyclin-dependent protein serine/threonine kinase activity. Located in cytoplasm and nuclear body. [provided by Alliance of Genome Resources, Apr 2022]

INCA1 links:

CAMTA2-AS1 (HGNC:55342): (CAMTA2 antisense RNA 1)

CAMTA2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06824747).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
INCA1	NM_001394789.1 link	c.502G>A	p.Glu168Lys	missense_variant	Exon 6 of 7	ENST00000695324.1	NP_001381718.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
INCA1	ENST00000695324.1 link	c.502G>A	p.Glu168Lys	missense_variant	Exon 6 of 7		NM_001394789.1	ENSP00000511805.1		Q0VD86-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152244

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:

0.00000398

AC:

AN:

251226

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135776

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:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000410

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74378

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

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 20, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.502G>A (p.E168K) alteration is located in exon 8 (coding exon 5) of the INCA1 gene. This alteration results from a G to A substitution at nucleotide position 502, causing the glutamic acid (E) at amino acid position 168 to be replaced by a lysine (K). 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

0.092

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.40

.;.;T;T

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.067

LIST_S2

Benign

0.69

.;T;.;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.068

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

.;.;N;N

PrimateAI

Benign

0.30

PROVEAN

Uncertain

-2.8

D;.;.;.

REVEL

Benign

0.036

Sift

Benign

0.073

T;.;.;.

Sift4G

Uncertain

0.024

D;D;D;D

Polyphen

0.019

B;B;B;B

Vest4

0.18

MutPred

0.42

.;.;Gain of ubiquitination at E168 (P = 0.0045);Gain of ubiquitination at E168 (P = 0.0045);

MVP

0.18

ClinPred

0.10

GERP RS

2.4

Varity_R

0.17

gMVP

0.11

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