Genetic Variant ITSN2:p.Tyr1558Cys (chr2-24208242-T-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

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

The NM_006277.3(ITSN2):c.4673A>G(p.Tyr1558Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000171 in 1,612,110 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: 𝑓 0.00020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

ITSN2
NM_006277.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.46

Variant links:

Genes affected

ITSN2 (HGNC:6184): (intersectin 2) This gene encodes a cytoplasmic protein which contains SH3 domains. This protein is a member of a family of proteins involved in clathrin-mediated endocytosis. Intersectin 2 is thought to regulate the formation of clathrin-coated vesicles and also may function in the induction of T cell antigen receptor (TCR) endocytosis. [provided by RefSeq, Jan 2017]

ITSN2 links:

Genome browser will be placed here

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, 0.765

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITSN2	NM_006277.3 link	c.4673A>G	p.Tyr1558Cys	missense_variant	Exon 37 of 40	ENST00000355123.9	NP_006268.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ITSN2	ENST00000355123.9 link	c.4673A>G	p.Tyr1558Cys	missense_variant	Exon 37 of 40	1	NM_006277.3	ENSP00000347244.4		Q9NZM3-1

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

151834

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

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:

0.000339

Gnomad OTH

AF:

0.000959

GnomAD3 exomes

AF:

0.000120

AC:

AN:

250562

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135492

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

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:

0.000220

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000167

AC:

244

AN:

1460276

Hom.:

Cov.:

AF XY:

0.000145

AC XY:

105

AN XY:

726530

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000201

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:

0.000201

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.000204

AC:

AN:

151834

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74136

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.000328

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000339

Gnomad4 OTH

AF:

0.000959

Alfa

AF:

0.000274

Hom.:

Bravo

AF:

0.000136

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000475

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 19, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.4673A>G (p.Y1558C) alteration is located in exon 37 (coding exon 36) of the ITSN2 gene. This alteration results from a A to G substitution at nucleotide position 4673, causing the tyrosine (Y) at amino acid position 1558 to be replaced by a cysteine (C). 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

0.84

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.16

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.24

.;T;.

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.97

D;D;D

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.76

D;D;D

MetaSVM

Benign

-0.64

MutationAssessor

Benign

1.9

.;L;.

PrimateAI

Uncertain

0.77

PROVEAN

Pathogenic

-5.7

D;D;.

REVEL

Uncertain

0.44

Sift

Uncertain

0.0050

D;D;.

Sift4G

Uncertain

0.0050

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.80

MVP

0.86

MPC

0.19

ClinPred

0.26

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.35

gMVP

0.46

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