21-33735155-C-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6BP7BS2

The NM_003024.3(ITSN1):ā€‹c.297C>Gā€‹(p.Pro99Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.001 in 1,613,824 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: š‘“ 0.0011 ( 0 hom., cov: 32)
Exomes š‘“: 0.00099 ( 2 hom. )

Consequence

ITSN1
NM_003024.3 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.176
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 21-33735155-C-G is Benign according to our data. Variant chr21-33735155-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 3038709.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-0.176 with no splicing effect.
BS2
High AC in GnomAd4 at 168 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITSN1NM_003024.3 linkuse as main transcriptc.297C>G p.Pro99Pro synonymous_variant 5/40 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.297C>G p.Pro99Pro synonymous_variant 5/401 NM_003024.3 ENSP00000370719.3 Q15811-1
ENSG00000249209ENST00000429238.2 linkuse as main transcriptc.442-148974G>C intron_variant 5 ENSP00000394107.2 H7C0C1

Frequencies

GnomAD3 genomes
AF:
0.00110
AC:
168
AN:
152116
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00198
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00190
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000876
AC:
220
AN:
251164
Hom.:
2
AF XY:
0.000877
AC XY:
119
AN XY:
135726
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000405
Gnomad ASJ exome
AF:
0.000397
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00277
Gnomad NFE exome
AF:
0.00119
Gnomad OTH exome
AF:
0.000816
GnomAD4 exome
AF:
0.000992
AC:
1450
AN:
1461590
Hom.:
2
Cov.:
31
AF XY:
0.00104
AC XY:
759
AN XY:
727068
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.000537
Gnomad4 ASJ exome
AF:
0.000230
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00234
Gnomad4 NFE exome
AF:
0.00111
Gnomad4 OTH exome
AF:
0.000911
GnomAD4 genome
AF:
0.00110
AC:
168
AN:
152234
Hom.:
0
Cov.:
32
AF XY:
0.00103
AC XY:
77
AN XY:
74408
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.000589
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00198
Gnomad4 NFE
AF:
0.00190
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00156
Hom.:
0
Bravo
AF:
0.000816
EpiCase
AF:
0.000873
EpiControl
AF:
0.000771

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

ITSN1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 05, 2023This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
7.4
DANN
Benign
0.74
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs138677260; hg19: chr21-35107460; API