rs932390799

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_203446.3(SYNJ1):​c.2792T>C​(p.Ile931Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000323 in 1,611,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

SYNJ1
NM_203446.3 missense

Scores

7
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.10
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 Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.82

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SYNJ1NM_203446.3 linkc.2792T>C p.Ile931Thr missense_variant Exon 21 of 33 ENST00000674351.1 NP_982271.3 O43426-2C9JFZ1Q05CZ1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SYNJ1ENST00000674351.1 linkc.2792T>C p.Ile931Thr missense_variant Exon 21 of 33 NM_203446.3 ENSP00000501530.1 O43426-2

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152230
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000865
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:
0.000478
GnomAD3 exomes
AF:
0.0000242
AC:
6
AN:
247788
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134070
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000293
Gnomad ASJ exome
AF:
0.000302
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000179
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000315
AC:
46
AN:
1459294
Hom.:
0
Cov.:
31
AF XY:
0.0000262
AC XY:
19
AN XY:
725796
show subpopulations
Gnomad4 AFR exome
AF:
0.0000600
Gnomad4 AMR exome
AF:
0.0000675
Gnomad4 ASJ exome
AF:
0.000499
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000243
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152230
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.0000482
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000865
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.0000264

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Early-onset Parkinson disease 20;C4479313:Developmental and epileptic encephalopathy, 53 Uncertain:1
Jun 22, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 970 of the SYNJ1 protein (p.Ile970Thr). This variant is present in population databases (no rsID available, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with SYNJ1-related conditions. ClinVar contains an entry for this variant (Variation ID: 544555). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.41
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
.;T;.;T;T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D;D;D;D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.82
D;D;D;D;D
MetaSVM
Pathogenic
0.85
D
MutationAssessor
Uncertain
2.3
M;.;.;.;.
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-3.4
D;D;.;D;D
REVEL
Pathogenic
0.88
Sift
Benign
0.085
T;T;.;T;T
Sift4G
Benign
0.095
T;T;D;T;T
Polyphen
0.59
P;.;.;P;.
Vest4
0.90
MutPred
0.59
Loss of stability (P = 0.0153);.;.;.;.;
MVP
0.98
MPC
0.60
ClinPred
0.80
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
gMVP
0.81

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: rs932390799; hg19: chr21-34029000; API