Variant 19-10287157-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001544.5(ICAM4):c.145T>C(p.Trp49Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,458,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

ICAM4
NM_001544.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.918

Variant links:

Genes affected

ICAM4 (HGNC:5347): (intercellular adhesion molecule 4 (Landsteiner-Wiener blood group)) This gene encodes the Landsteiner-Wiener (LW) blood group antigen(s) that belongs to the immunoglobulin (Ig) superfamily, and that shares similarity with the intercellular adhesion molecule (ICAM) protein family. This ICAM protein contains 2 Ig-like C2-type domains and binds to the leukocyte adhesion LFA-1 protein. The molecular basis of the LW(A)/LW(B) blood group antigens is a single aa variation at position 100; Gln-100=LW(A) and Arg-100=LW(B). Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

ICAM4 links:

ICAM4-AS1 (HGNC:55990): (ICAM4 antisense RNA 1)

ICAM4-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.37386265).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ICAM4	NM_001544.5 linkuse as main transcript	c.145T>C	p.Trp49Arg	missense_variant	1/3	ENST00000380770.5	NP_001535.1
ICAM4	NM_001039132.3 linkuse as main transcript	c.145T>C	p.Trp49Arg	missense_variant	1/3		NP_001034221.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ICAM4	ENST00000380770.5 linkuse as main transcript	c.145T>C	p.Trp49Arg	missense_variant	1/3	1	NM_001544.5	ENSP00000370147	P2	Q14773-1
ICAM4	ENST00000340992.4 linkuse as main transcript	c.145T>C	p.Trp49Arg	missense_variant	1/3	1		ENSP00000342114		Q14773-3
ICAM4-AS1	ENST00000589379.1 linkuse as main transcript	n.1863A>G		non_coding_transcript_exon_variant	1/1
ICAM4	ENST00000393717.2 linkuse as main transcript	c.145T>C	p.Trp49Arg	missense_variant	1/2	2		ENSP00000377320	A2	Q14773-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000818

AC:

AN:

244370

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133176

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:

0.0000183

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1458970

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

725468

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:

0.0000333

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.0000113

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

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

Aug 21, 2023

The c.145T>C (p.W49R) alteration is located in exon 1 (coding exon 1) of the ICAM4 gene. This alteration results from a T to C substitution at nucleotide position 145, causing the tryptophan (W) at amino acid position 49 to be replaced by an arginine (R). 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

-0.046

BayesDel_noAF

Benign

-0.28

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.23

T;.;.

Eigen

Uncertain

0.29

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.52

T;T;T

M_CAP

Benign

0.018

MetaRNN

Benign

0.37

T;T;T

MetaSVM

Benign

-0.87

MutationAssessor

Uncertain

2.7

M;M;M

MutationTaster

Benign

0.66

D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.7

D;D;D

REVEL

Benign

0.14

Sift

Benign

0.14

T;T;T

Sift4G

Uncertain

0.0030

D;D;D

Polyphen

0.97

D;.;D

Vest4

0.37

MutPred

0.48

Loss of catalytic residue at M52 (P = 0.0058);Loss of catalytic residue at M52 (P = 0.0058);Loss of catalytic residue at M52 (P = 0.0058);

MVP

0.31

MPC

2.1

ClinPred

0.93

GERP RS

4.1

Varity_R

0.52

gMVP

0.29

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