Variant 7-8113988-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001136020.3(ICA1):c.1387G>A(p.Asp463Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000595 in 1,461,838 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

ICA1
NM_001136020.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.86

Variant links:

Genes affected

ICA1 (HGNC:5343): (islet cell autoantigen 1) This gene encodes a protein with an arfaptin homology domain that is found both in the cytosol and as membrane-bound form on the Golgi complex and immature secretory granules. This protein is believed to be an autoantigen in insulin-dependent diabetes mellitus and primary Sjogren's syndrome. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Feb 2013]

ICA1 links:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.815

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ICA1	NM_001136020.3 linkuse as main transcript	c.1387G>A	p.Asp463Asn	missense_variant	14/14	ENST00000402384.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ICA1	ENST00000402384.8 linkuse as main transcript	c.1387G>A	p.Asp463Asn	missense_variant	14/14	2	NM_001136020.3	A1	Q05084-1
	ENST00000449931.1 linkuse as main transcript			upstream_gene_variant		4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000240

AC:

AN:

249920

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135236

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:

0.0000446

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000595

AC:

AN:

1461838

Hom.:

Cov.:

AF XY:

0.0000523

AC XY:

AN XY:

727224

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:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000710

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

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

Jan 18, 2022

The c.1387G>A (p.D463N) alteration is located in exon 14 (coding exon 13) of the ICA1 gene. This alteration results from a G to A substitution at nucleotide position 1387, causing the aspartic acid (D) at amino acid position 463 to be replaced by an asparagine (N). 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

0.99

BayesDel_addAF

Benign

-0.050

BayesDel_noAF

Benign

-0.18

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Uncertain

0.79

D;D;.;D;T;.

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Uncertain

0.92

M_CAP

Benign

0.031

MetaRNN

Pathogenic

0.81

D;D;D;D;D;D

MetaSVM

Uncertain

-0.18

MutationAssessor

Uncertain

2.7

M;M;.;M;.;.

MutationTaster

Benign

1.0

D;D;D;D;D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-3.4

D;D;D;D;D;D

REVEL

Uncertain

0.38

Sift

Uncertain

0.014

D;D;D;D;D;D

Sift4G

Uncertain

0.011

D;D;D;D;D;D

Polyphen

1.0

D;D;.;D;D;.

Vest4

0.93

MVP

0.71

MPC

0.60

ClinPred

0.96

GERP RS

5.0

Varity_R

0.43

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