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Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy

NOTCH3 · rs1555730197

Stands on its own. Nothing else here links to this position yet — but the page above is the point: what the research found, what each genotype means, and where it came from, in language you can read. Links to conditions, drugs and the senses appear automatically if we write them.

Strength of the evidence

3 / 4

ClinVar classifies it as disease-causing (or likely), reviewed at 2 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/Likely pathogenic for Lateral meningocele syndrome, Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1, Myofibromatosis, infantile, 2; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 6 submitters), last evaluated 2026-01-19. ClinVar record 585596 NM_000435.3(NOTCH3):c.145T>G (p.Cys49Gly)

Classification Pathogenic for Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy; criteria provided, single submitter (1 of 4 stars, 2 submitters), last evaluated 2016-11-10. ClinVar record 447785 NM_000435.3(NOTCH3):c.145T>C (p.Cys49Arg)

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 No copy of the version ClinVar lists as disease-causing for Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy. This is the usual result. So far only one lab has made this call, so it may change. (ClinVar VCV000447785, criteria provided, single submitter)
A/G One copy of the version ClinVar lists as disease-causing for Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy. 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. So far only one lab has made this call, so it may change. (ClinVar VCV000447785, criteria provided, single submitter)
G/G Two copies of the version ClinVar lists as disease-causing for Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy. 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. So far only one lab has made this call, so it may change. (ClinVar VCV000447785, criteria provided, single submitter)

Source: ClinVar VCV000447785, criteria provided, single submitter

Questions about rs1555730197

What is rs1555730197?

rs1555730197 is a single position in the genome, in or near the NOTCH3 gene. Published research associates it with cerebral arteriopathy with subcortical infarcts and leukoencephalopathy. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs1555730197 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 rs1555730197 come from?

ClinVar VCV000447785, criteria provided, single submitter. 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

Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy (rs1555730197). MyGeneLog™. https://www.mygenelog.com/variants/rs1555730197

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