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Fetal anomalies

Gene: SNAP25

Green List (high evidence)
SNAP25 (synaptosome associated protein 25)
EnsemblGeneIds (GRCh38): ENSG00000132639
EnsemblGeneIds (GRCh37): ENSG00000132639
OMIM: 600322, Gene2Phenotype
SNAP25 is in 6 panels

3 reviews

Achchuthan Shanmugasundram (Genomics England Curator)

Green List (high evidence)

The rating of this gene has been updated to green and the mode of inheritance updated to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted following NHS Genomic Medicine Service approval.
Created: 25 Feb 2025, 11:15 a.m. | Last Modified: 25 Feb 2025, 11:15 a.m.
Panel Version: 5.78
This gene and phenotype were reviewed during meetings between November 2024 & January 2025. The meetings included representatives of the Central & South and North Thames R21 testing GLHs and from the R21 Clinical Oversight Group. Clinical review and curation was performed by Stephanie Allen, Natalie Bibb, and Sarah Graham (Central & South GLH), Natalie Chandler and Elizabeth Scotchman (North Thames GLH), and Sunayna Best, Anna De Burca, Natalie Canham, Samantha Doyle, Alice Gardham, Victoria Harrison, Esther Kinning, Sahar Mansour, Soo-Mi Park, and Elizabeth Wall (R21 Clinical Oversight Group).
Created: 20 Feb 2025, 9:40 p.m. | Last Modified: 20 Feb 2025, 9:40 p.m.
Panel Version: 5.16

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

Created: 20 Feb 2025, 9:40 p.m.
Last Modified: 20 Feb 2025, 9:40 p.m.
Panel version: 5.78

Sunayna Best (Leeds Teaching Hospitals NHS Trust)

Green List (high evidence)

Green in ataxia and cerebellar anomalies, DDG2P, early onset or syndromic epilepsy, ID. Klockner et al, 2021: 3 fetsuses with talipes, 1 with clenched hands. 1 polyhydramnios, 1 oligohydramnios. No functional work. Alten et al, 2021 (PMID: 33147442): expression of one of these variants (Q174X) in wild-type neuronal cultures exerted a strong dominant-negative effect. Reynolds et al, 2022: single case. severe polyhydramnios, multiple upper extremity joint contractures consistent with arthrogryposis, micrognathia, right clubfoot, left rocker-bottom foot, diffuse skin thickening, and hypomobility. No functional work. Recurrent prenatal phenotypes.
Created: 20 Feb 2025, 9:35 p.m. | Last Modified: 20 Feb 2025, 9:35 p.m.
Panel Version: 5.15

Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

Phenotypes
Myasthenic syndrome, congenital, 18, MIM#616330

Publications

Created: 20 Feb 2025, 9:35 p.m.
Last Modified: 20 Feb 2025, 9:35 p.m.
Panel version: 5.15

Rebecca Foulger (Genomics England curator)

I don't know

DDG2P rating in original PAGE list: Probable for Epilepsy and intellectual disability
Created: 11 Dec 2018, 9:05 a.m.
In the original PAGE file, MOP listed as All missense/in frame.
Created: 8 Nov 2018, 4:45 p.m.

Mode of pathogenicity
Other - please provide details in the comments

Created: 8 Nov 2018, 4:45 p.m.

Panel version: 0.9

Details

Mode of Inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Sources
  • Expert Review Green
  • NHS GMS
  • PAGE DD-Gene2Phenotype
Phenotypes
  • Myasthenic syndrome, congenital, 18, OMIM:616330
OMIM
600322
Clinvar variants
Variants in SNAP25
Penetrance
None
Publications
Panels with this gene

History Filter Activity

25 Feb 2025, Gel status: 3

Removed Tag, Removed Tag

Achchuthan Shanmugasundram (Genomics England Curator)

Tag Q1_25_ NHS_review was removed from gene: SNAP25. Tag Q1_25_ promote_green was removed from gene: SNAP25.

25 Feb 2025, Gel status: 3

Added New Source, Status Update

Achchuthan Shanmugasundram (Genomics England Curator)

Source Expert Review Green was added to SNAP25. Rating Changed from Amber List (moderate evidence) to Green List (high evidence)

21 Feb 2025, Gel status: 2

Added Tag, Added Tag

Achchuthan Shanmugasundram (Genomics England Curator)

Tag Q1_25_ NHS_review tag was added to gene: SNAP25. Tag Q1_25_ promote_green tag was added to gene: SNAP25.

20 Feb 2025, Gel status: 2

Set Phenotypes

Achchuthan Shanmugasundram (Genomics England Curator)

Phenotypes for gene: SNAP25 were changed from Epilepsy and intellectual disability; Myasthenic syndrome, congenital, 18, OMIM:616330 to Myasthenic syndrome, congenital, 18, OMIM:616330

20 Feb 2025, Gel status: 2

Added New Source, Set mode of inheritance, Set Phenotypes, Set publications

Achchuthan Shanmugasundram (Genomics England Curator)

Source NHS GMS was added to SNAP25. Mode of inheritance for gene SNAP25 was changed from MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted Added phenotypes Myasthenic syndrome, congenital, 18, OMIM:616330 for gene: SNAP25 Publications for gene: SNAP25 were updated from to 33299146; 36379720

8 Nov 2018, Gel status: 2

Created, Added New Source, Set mode of inheritance, Set Phenotypes

Rebecca Foulger (Genomics England curator)

gene: SNAP25 was added gene: SNAP25 was added to Fetal anomalies. Sources: PAGE DD-Gene2Phenotype,Expert Review Amber Mode of inheritance for gene: SNAP25 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Phenotypes for gene: SNAP25 were set to Epilepsy and intellectual disability