dbSNP rs933130: ITSN1:c.4341+48C>A (chr21-33875569-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003024.3(ITSN1):c.4341+48C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000254 in 1,571,838 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ITSN1
NM_003024.3 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.894

Publications

9 publications found

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 was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003024.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ITSN1	NM_003024.3	MANE Select	c.4341+48C>A		intron	N/A	NP_003015.2
	ITSN1	NM_001331010.2		c.4326+48C>A		intron	N/A	NP_001317939.1	Q15811-8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
ITSN1	ENST00000381318.8	TSL:1 MANE Select	c.4341+48C>A	intron	N/A	ENSP00000370719.3	Q15811-1
ITSN1	ENST00000399367.7	TSL:1	c.4326+48C>A	intron	N/A	ENSP00000382301.3	Q15811-8
ITSN1	ENST00000381284.7	TSL:1	c.379-6674C>A	intron	N/A	ENSP00000370684.3	H0Y3G5

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151984

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000178

AC:

AN:

224762

AF XY:

0.0000247

show subpopulations

Gnomad AFR exome

AF:

0.000193

Gnomad AMR exome

AF:

0.0000326

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000141

AC:

AN:

1419854

Hom.:

Cov.:

AF XY:

0.00000142

AC XY:

AN XY:

704134

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32342

American (AMR)

AF:

0.0000245

AC:

AN:

40762

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24100

East Asian (EAS)

AF:

0.00

AC:

AN:

39278

South Asian (SAS)

AF:

0.00

AC:

AN:

82006

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5458

European-Non Finnish (NFE)

AF:

9.21e-7

AC:

AN:

1085344

Other (OTH)

AF:

0.00

AC:

AN:

58548

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151984

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74212

show subpopulations

African (AFR)

AF:

0.0000484

AC:

AN:

41362

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10588

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67980

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

2205

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

4.5

(source)

DANN

Benign

0.15

PhyloP100

0.89

PromoterAI

-0.030

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over