rs111774827

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_StrongBP6_ModerateBP7BS1

The NM_203446.3(SYNJ1):ā€‹c.2997T>Cā€‹(p.Leu999=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000546 in 1,610,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.00025 ( 0 hom., cov: 33)
Exomes š‘“: 0.000034 ( 0 hom. )

Consequence

SYNJ1
NM_203446.3 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.06
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 -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 21-32650224-A-G is Benign according to our data. Variant chr21-32650224-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 544580.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr21-32650224-A-G is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-1.06 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000249 (38/152334) while in subpopulation AFR AF= 0.000914 (38/41586). AF 95% confidence interval is 0.000684. There are 0 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SYNJ1NM_203446.3 linkuse as main transcriptc.2997T>C p.Leu999= synonymous_variant 23/33 ENST00000674351.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SYNJ1ENST00000674351.1 linkuse as main transcriptc.2997T>C p.Leu999= synonymous_variant 23/33 NM_203446.3 O43426-2

Frequencies

GnomAD3 genomes
AF:
0.000243
AC:
37
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000892
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
GnomAD3 exomes
AF:
0.0000728
AC:
18
AN:
247196
Hom.:
0
AF XY:
0.0000524
AC XY:
7
AN XY:
133496
show subpopulations
Gnomad AFR exome
AF:
0.00106
Gnomad AMR exome
AF:
0.0000299
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.0000343
AC:
50
AN:
1458448
Hom.:
0
Cov.:
30
AF XY:
0.0000345
AC XY:
25
AN XY:
725302
show subpopulations
Gnomad4 AFR exome
AF:
0.000962
Gnomad4 AMR exome
AF:
0.0000455
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000216
GnomAD4 genome
AF:
0.000249
AC:
38
AN:
152334
Hom.:
0
Cov.:
33
AF XY:
0.000242
AC XY:
18
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.000914
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000218
Hom.:
0
Bravo
AF:
0.000264
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 25, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.83
DANN
Benign
0.73
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs111774827; hg19: chr21-34022534; API