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Developmental and epileptic encephalopathy

SCN2A · rs1553568990

Where this position leads

Condition: Epilepsy

rs1553568990 Condition: Epilepsy Epilepsy Condition rs1553568990 rs1553568990 SCN2A

Strength of the evidence

1 / 4

ClinVar classifies it as disease-causing (or likely), reviewed at 0 of 4 stars.

How this is scored

4: ClinVar disease-causing, reviewed by an expert panel or a guideline (3–4 stars). 3: ClinVar, several labs agreeing (2 stars), or a genetic study at p ≤ 10−50. 2: ClinVar from one lab (1 star), or p ≤ 10−20. 1: ClinVar submitted without criteria (0 stars), or genome-wide significance (p ≤ 5×10−8). The higher of the two counts. It says how solid the evidence is, not whether it matters for a particular person.

What ClinVar records

Classification Pathogenic for Developmental and epileptic encephalopathy, West syndrome; no assertion criteria provided (0 of 4 stars, 1 submitter), last evaluated 2022-02-16. ClinVar record 1342694 NM_001040142.2(SCN2A):c.1288G>A (p.Glu430Lys)

Change history MyGeneLog™ keeps a copy of every weekly release from 2026-10-19 and compares them. This position's classification has not changed since.

What this is ClinVar's aggregate record for this position (as of its 2026-10-19 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.

What each result means

A/A Two copies of the version ClinVar lists as disease-causing for Developmental and epileptic encephalopathy. A result like this should be confirmed by a medical genetic test and talked through with a doctor; consumer DNA files can misread rare variants. This call was sent to ClinVar without the lab's criteria, the least certain kind of record, so it may change. (ClinVar VCV001342694, no assertion criteria provided)
A/G One copy of the version ClinVar lists as disease-causing for Developmental and epileptic encephalopathy. Some conditions need only one copy; for others, one copy makes a person a carrier who is usually healthy but can pass it on. A genetic counsellor can say which applies. This call was sent to ClinVar without the lab's criteria, the least certain kind of record, so it may change. (ClinVar VCV001342694, no assertion criteria provided)
G/G No copy of the version ClinVar lists as disease-causing for Developmental and epileptic encephalopathy. This is the usual result. This call was sent to ClinVar without the lab's criteria, the least certain kind of record, so it may change. (ClinVar VCV001342694, no assertion criteria provided)

Source: ClinVar VCV001342694, no assertion criteria provided

Questions about rs1553568990

What is rs1553568990?

rs1553568990 is a single position in the genome, in or near the SCN2A gene. Published research associates it with developmental and epileptic encephalopathy. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

What conditions is rs1553568990 linked to?

On MyGeneLog this position is linked to Epilepsy. The research behind each link, and its sources, are set out on that condition page.

Does having rs1553568990 mean I will get this?

No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.

Where does the information about rs1553568990 come from?

ClinVar VCV001342694, no assertion criteria provided. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

Licensed CC BY-NC 4.0: free to read, share and adapt for non-commercial use, naming MyGeneLog™ and linking the exact page. Commercial use, including training or serving a commercial AI system, needs a licence — https://www.mygenelog.com/license

Developmental and epileptic encephalopathy (rs1553568990). MyGeneLog™. https://www.mygenelog.com/variants/rs1553568990

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