Standard

Microcephalic osteodysplastic primordial dwarfism type II

PCNT · rs1555999948

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 for Microcephalic osteodysplastic primordial dwarfism type II; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 2 submitters), last evaluated 2022-05-17. ClinVar record 437418 NM_006031.6(PCNT):c.7804G>T (p.Glu2602Ter)

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

G/G No copy of the version ClinVar lists as disease-causing for Microcephalic osteodysplastic primordial dwarfism type II. This is the usual result. (ClinVar VCV000437418, criteria provided, multiple submitters, no conflicts)
G/T One copy of the version ClinVar lists as disease-causing for Microcephalic osteodysplastic primordial dwarfism type II. 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. (ClinVar VCV000437418, criteria provided, multiple submitters, no conflicts)
T/T Two copies of the version ClinVar lists as disease-causing for Microcephalic osteodysplastic primordial dwarfism type II. 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. (ClinVar VCV000437418, criteria provided, multiple submitters, no conflicts)

Source: ClinVar VCV000437418, criteria provided, multiple submitters, no conflicts

Questions about rs1555999948

What is rs1555999948?

rs1555999948 is a single position in the genome, in or near the PCNT gene. Published research associates it with microcephalic osteodysplastic primordial dwarfism type ii. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs1555999948 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 rs1555999948 come from?

ClinVar VCV000437418, criteria provided, multiple submitters, no conflicts. 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

Microcephalic osteodysplastic primordial dwarfism type II (rs1555999948). MyGeneLog™. https://www.mygenelog.com/variants/rs1555999948

← See all variants