Menu
GeneBe

rs376206541

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_203446.3(SYNJ1):c.2875-5G>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000576 in 1,597,598 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

SYNJ1
NM_203446.3 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0001974
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.00
Variant links:
Genes affected
SYNJ1 (HGNC:11503): (synaptojanin 1) This gene encodes a phosphoinositide phosphatase that regulates levels of membrane phosphatidylinositol-4,5-bisphosphate. As such, expression of this enzyme may affect synaptic transmission and membrane trafficking. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 21-32650351-C-T is Benign according to our data. Variant chr21-32650351-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 478337.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SYNJ1NM_203446.3 linkuse as main transcriptc.2875-5G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000674351.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SYNJ1ENST00000674351.1 linkuse as main transcriptc.2875-5G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NM_203446.3 O43426-2

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
151976
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000605
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000901
AC:
21
AN:
233148
Hom.:
0
AF XY:
0.0000872
AC XY:
11
AN XY:
126154
show subpopulations
Gnomad AFR exome
AF:
0.000704
Gnomad AMR exome
AF:
0.0000665
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000569
Gnomad SAS exome
AF:
0.000267
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000429
AC:
62
AN:
1445504
Hom.:
0
Cov.:
30
AF XY:
0.0000501
AC XY:
36
AN XY:
718504
show subpopulations
Gnomad4 AFR exome
AF:
0.000615
Gnomad4 AMR exome
AF:
0.0000739
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.000364
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000361
Gnomad4 OTH exome
AF:
0.0000670
GnomAD4 genome
AF:
0.000197
AC:
30
AN:
152094
Hom.:
0
Cov.:
33
AF XY:
0.000134
AC XY:
10
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.000603
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000132
Hom.:
1
Bravo
AF:
0.000193

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Early-onset Parkinson disease 20;C4479313:Developmental and epileptic encephalopathy, 53 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 27, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
Cadd
Benign
10
Dann
Benign
0.64
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00020
dbscSNV1_RF
Benign
0.0
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: rs376206541; hg19: chr21-34022661; API