Variant chr21-33735102-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_003024.3(ITSN1):c.244A>G(p.Met82Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,740 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: 0.0000021 ( 0 hom. )

Consequence

ITSN1
NM_003024.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.26

Variant links:

Genes affected

ITSN1 (HGNC:6183): (intersectin 1) The protein encoded by this gene is a cytoplasmic membrane-associated protein that indirectly coordinates endocytic membrane traffic with the actin assembly machinery. In addition, the encoded protein may regulate the formation of clathrin-coated vesicles and could be involved in synaptic vesicle recycling. This protein has been shown to interact with dynamin, CDC42, SNAP23, SNAP25, SPIN90, EPS15, EPN1, EPN2, and STN2. Multiple transcript variants encoding different isoforms have been found for this gene, but the full-length nature of only two of them have been characterized so far. [provided by RefSeq, Jul 2008]

ITSN1 links:

ENSG00000249209 (HGNC:):

ENSG00000249209 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.849

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ITSN1	NM_003024.3 linkuse as main transcript	c.244A>G	p.Met82Val	missense_variant	5/40	ENST00000381318.8	NP_003015.2	Q15811-1Q6PD56

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ITSN1	ENST00000381318.8 linkuse as main transcript	c.244A>G	p.Met82Val	missense_variant	5/40	1	NM_003024.3	ENSP00000370719.3		Q15811-1
ENSG00000249209	ENST00000429238.2 linkuse as main transcript	c.442-148921T>C		intron_variant		5		ENSP00000394107.2		H7C0C1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461740

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727176

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:

0.0000374

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 14, 2023

The c.244A>G (p.M82V) alteration is located in exon 5 (coding exon 4) of the ITSN1 gene. This alteration results from a A to G substitution at nucleotide position 244, causing the methionine (M) at amino acid position 82 to be replaced by a valine (V). 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

0.68

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.23

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.17

.;T;T;.;T;.;.;.;.;T;.

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D;D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.048

MetaRNN

Pathogenic

0.85

D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.34

MutationAssessor

Pathogenic

3.5

H;.;H;H;.;H;H;.;H;.;H

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-2.8

D;D;D;D;D;D;D;D;D;D;D

REVEL

Pathogenic

0.69

Sift

Uncertain

0.016

D;T;D;D;D;D;D;D;D;D;D

Sift4G

Benign

0.14

T;D;T;T;D;T;T;T;T;D;D

Polyphen

0.95, 0.97

.;.;P;.;.;.;.;D;D;.;.

Vest4

0.88

MutPred

0.70

Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);Loss of catalytic residue at M82 (P = 0.0545);

MVP

0.92

MPC

0.36

ClinPred

0.99

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.50

gMVP

0.91

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over