rs587780449

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001040142.2(SCN2A):​c.5187A>C​(p.Pro1729Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,166 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 (★). Synonymous variant affecting the same amino acid position (i.e. P1729P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SCN2A
NM_001040142.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.67

Publications

0 publications found
Variant links:
Genes affected
SCN2A (HGNC:10588): (sodium voltage-gated channel alpha subunit 2) Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with four repeat domains, each of which is composed of six membrane-spanning segments, and one or more regulatory beta subunits. Voltage-gated sodium channels function in the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family. Allelic variants of this gene are associated with seizure disorders and autism spectrum disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]
SCN2A Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Illumina
  • developmental and epileptic encephalopathy, 11
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • intellectual disability
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • episodic ataxia, type 9
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • seizures, benign familial infantile, 3
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • benign familial infantile epilepsy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • benign familial neonatal-infantile seizures
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Dravet syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • infantile spasms
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • malignant migrating partial seizures of infancy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 2-165388993-A-C is Benign according to our data. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr2-165388993-A-C is described in CliVar as Likely_benign. Clinvar id is 2924166.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-1.67 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SCN2ANM_001040142.2 linkc.5187A>C p.Pro1729Pro synonymous_variant Exon 27 of 27 ENST00000375437.7 NP_001035232.1 Q99250-1
SCN2ANM_001371246.1 linkc.5187A>C p.Pro1729Pro synonymous_variant Exon 27 of 27 ENST00000631182.3 NP_001358175.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SCN2AENST00000375437.7 linkc.5187A>C p.Pro1729Pro synonymous_variant Exon 27 of 27 5 NM_001040142.2 ENSP00000364586.2 Q99250-1
SCN2AENST00000631182.3 linkc.5187A>C p.Pro1729Pro synonymous_variant Exon 27 of 27 5 NM_001371246.1 ENSP00000486885.1 Q99250-2
SCN2AENST00000283256.10 linkc.5187A>C p.Pro1729Pro synonymous_variant Exon 27 of 27 1 ENSP00000283256.6 Q99250-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1461844
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727218
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111984
Other (OTH)
AF:
0.00
AC:
0
AN:
60392
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Seizures, benign familial infantile, 3;C3150987:Developmental and epileptic encephalopathy, 11 Benign:1
Sep 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.35
DANN
Benign
0.45
PhyloP100
-1.7
Mutation Taster
=97/3
polymorphism

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

Other links and lift over

dbSNP: rs587780449; hg19: chr2-166245503; API