21-33750262-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_003024.3(ITSN1):​c.466C>T​(p.Pro156Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

ITSN1
NM_003024.3 missense

Scores

1
3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.36
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.20875823).
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITSN1NM_003024.3 linkuse as main transcriptc.466C>T p.Pro156Ser missense_variant 6/40 ENST00000381318.8 NP_003015.2 Q15811-1Q6PD56

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITSN1ENST00000381318.8 linkuse as main transcriptc.466C>T p.Pro156Ser missense_variant 6/401 NM_003024.3 ENSP00000370719.3 Q15811-1
ENSG00000249209ENST00000429238.2 linkuse as main transcriptc.441+157079G>A intron_variant 5 ENSP00000394107.2 H7C0C1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152110
Hom.:
0
Cov.:
32
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
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461262
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
726982
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:
0.0000187
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74302
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
Bravo
AF:
0.00000378
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 submitterclinical testingAmbry GeneticsFeb 27, 2023The c.466C>T (p.P156S) alteration is located in exon 6 (coding exon 5) of the ITSN1 gene. This alteration results from a C to T substitution at nucleotide position 466, causing the proline (P) at amino acid position 156 to be replaced by a serine (S). 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
0.081
BayesDel_addAF
Benign
-0.033
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Benign
0.94
DEOGEN2
Benign
0.22
.;T;.;T;.;.;.;.;.;.
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.35
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.85
T;D;D;T;D;D;D;D;D;D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.21
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
1.9
.;L;L;.;L;L;.;L;L;.
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-4.4
D;N;N;.;N;N;N;N;N;.
REVEL
Benign
0.22
Sift
Benign
0.068
T;D;D;.;D;D;D;D;D;.
Sift4G
Uncertain
0.025
D;T;T;D;T;T;T;T;T;T
Polyphen
0.16, 0.39
.;B;.;.;.;.;B;B;.;.
Vest4
0.68
MutPred
0.25
.;Loss of catalytic residue at P156 (P = 0.0018);Loss of catalytic residue at P156 (P = 0.0018);.;Loss of catalytic residue at P156 (P = 0.0018);Loss of catalytic residue at P156 (P = 0.0018);Loss of catalytic residue at P156 (P = 0.0018);Loss of catalytic residue at P156 (P = 0.0018);Loss of catalytic residue at P156 (P = 0.0018);.;
MVP
0.58
MPC
0.36
ClinPred
0.75
D
GERP RS
3.3
Varity_R
0.18
gMVP
0.40

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.

Other links and lift over

dbSNP: rs1340587657; hg19: chr21-35122567; COSMIC: COSV66083080; COSMIC: COSV66083080; API