rs61752550

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The ENST00000674351.1(SYNJ1):​c.3587C>T​(p.Pro1196Leu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000028 in 1,609,780 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1196R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

SYNJ1
ENST00000674351.1 missense, splice_region

Scores

5
8
4
Splicing: ADA: 0.9980
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.19

Publications

3 publications found
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]
SYNJ1 Gene-Disease associations (from GenCC):
  • genetic developmental and epileptic encephalopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy, 53
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • early-onset Parkinson disease 20
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • undetermined early-onset epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • atypical juvenile parkinsonism
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • young-onset Parkinson disease
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000674351.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SYNJ1
NM_203446.3
MANE Select
c.3587C>Tp.Pro1196Leu
missense splice_region
Exon 29 of 33NP_982271.3
SYNJ1
NM_003895.4
c.3704C>Tp.Pro1235Leu
missense splice_region
Exon 29 of 32NP_003886.3
SYNJ1
NM_001160306.2
c.3446C>Tp.Pro1149Leu
missense splice_region
Exon 25 of 28NP_001153778.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SYNJ1
ENST00000674351.1
MANE Select
c.3587C>Tp.Pro1196Leu
missense splice_region
Exon 29 of 33ENSP00000501530.1
SYNJ1
ENST00000433931.7
TSL:1
c.3704C>Tp.Pro1235Leu
missense splice_region
Exon 29 of 32ENSP00000409667.2
SYNJ1
ENST00000630077.3
TSL:1
c.3446C>Tp.Pro1149Leu
missense splice_region
Exon 25 of 28ENSP00000487560.1

Frequencies

GnomAD3 genomes
AF:
0.0000658
AC:
10
AN:
152000
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000524
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:
0.000479
GnomAD2 exomes
AF:
0.000102
AC:
25
AN:
245798
AF XY:
0.0000752
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000527
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000554
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.000497
GnomAD4 exome
AF:
0.0000240
AC:
35
AN:
1457662
Hom.:
0
Cov.:
32
AF XY:
0.0000207
AC XY:
15
AN XY:
725068
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33162
American (AMR)
AF:
0.000473
AC:
21
AN:
44440
Ashkenazi Jewish (ASJ)
AF:
0.0000384
AC:
1
AN:
26044
East Asian (EAS)
AF:
0.0000254
AC:
1
AN:
39400
South Asian (SAS)
AF:
0.0000233
AC:
2
AN:
85692
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53250
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00000721
AC:
8
AN:
1109784
Other (OTH)
AF:
0.0000333
AC:
2
AN:
60130
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000657
AC:
10
AN:
152118
Hom.:
0
Cov.:
32
AF XY:
0.0000941
AC XY:
7
AN XY:
74358
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41492
American (AMR)
AF:
0.000523
AC:
8
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4798
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67982
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000261
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.0000906
AC:
11

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Early-onset Parkinson disease 20;C4479313:Developmental and epileptic encephalopathy, 53 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Uncertain
0.033
T
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.36
T
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.41
T
MetaSVM
Benign
-0.50
T
PhyloP100
5.2
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.58
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.026
D
Polyphen
1.0
D
Vest4
0.63
MVP
0.92
MPC
0.50
ClinPred
0.32
T
GERP RS
6.1
PromoterAI
-0.025
Neutral
gMVP
0.23
Mutation Taster
=50/50

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.92
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs61752550; hg19: chr21-34014207; API