rs146425050

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_003895.4(SYNJ1):​c.4581G>A​(p.Glu1527Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00081 in 1,614,214 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00048 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00084 ( 4 hom. )

Consequence

SYNJ1
NM_003895.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -2.44
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.47).
BP6
Variant 21-32631253-C-T is Benign according to our data. Variant chr21-32631253-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 478358.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr21-32631253-C-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-2.44 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000479 (73/152332) while in subpopulation SAS AF= 0.00145 (7/4832). AF 95% confidence interval is 0.000679. There are 1 homozygotes in gnomad4. There are 41 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SYNJ1NM_203446.3 linkuse as main transcriptc.*552G>A 3_prime_UTR_variant 33/33 ENST00000674351.1 NP_982271.3 O43426-2C9JFZ1Q05CZ1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SYNJ1ENST00000674351 linkuse as main transcriptc.*552G>A 3_prime_UTR_variant 33/33 NM_203446.3 ENSP00000501530.1 O43426-2

Frequencies

GnomAD3 genomes
AF:
0.000480
AC:
73
AN:
152214
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00110
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000794
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.000589
AC:
148
AN:
251474
Hom.:
0
AF XY:
0.000640
AC XY:
87
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000588
Gnomad FIN exome
AF:
0.000554
Gnomad NFE exome
AF:
0.00101
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000845
AC:
1235
AN:
1461882
Hom.:
4
Cov.:
30
AF XY:
0.000883
AC XY:
642
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000719
Gnomad4 FIN exome
AF:
0.000786
Gnomad4 NFE exome
AF:
0.000974
Gnomad4 OTH exome
AF:
0.000712
GnomAD4 genome
AF:
0.000479
AC:
73
AN:
152332
Hom.:
1
Cov.:
33
AF XY:
0.000550
AC XY:
41
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00145
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.000794
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.000579
Hom.:
0
Bravo
AF:
0.000442
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenSep 01, 2024SYNJ1: BP4, BP7 -
Early-onset Parkinson disease 20;C4479313:Developmental and epileptic encephalopathy, 53 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 21, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.47
CADD
Benign
0.18
DANN
Benign
0.35

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: rs146425050; hg19: chr21-34003563; API