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Platelet distribution width

HLA-B · rs9391774

Where this position leads

Drugs: Abacavir, Allopurinol, Carbamazepine and oxcarbazepine

rs9391774 Drug: Abacavir Abacavir Drug Drug: Allopurinol Allopurinol Drug Drug: Carbamazepine and oxcarbazepine Carbamazepine and oxcarbazepine Drug rs9391774 rs9391774 HLA-B

What the study found

Who was studied 408,112 British individuals.

The effect Each copy of the A allele shifted the measure 0.0385 lower (95% confidence interval 0.029-0.048); p = 8 × 10−17.

How common The A allele had a frequency of about 7% in the people studied.

Where it sits Chromosome 6, band 6p21.33 — between genes, 2.7 kb from HLA-B.

What each result means

A/A Two copies of the version the research linked to Platelet distribution width. That is the strongest link of the three results. A link in a study is not a diagnosis.
A/G One copy of the version the research linked to Platelet distribution width. That is a smaller link than two copies.
G/G No copy of the version the research linked to Platelet distribution width. This is the starting point the study compared everyone against.
Source

Questions about rs9391774

What is rs9391774?

rs9391774 is a single position in the genome, in or near the HLA-B gene. Published research associates it with platelet distribution width. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does rs9391774 affect how medicines work?

HLA-B carries pharmacogenomic findings for Abacavir, Allopurinol, Carbamazepine and oxcarbazepine. That is educational information, not a prescription or a dosing guide. Any decision to start, stop or change a medicine belongs with the clinician or pharmacist managing your treatment.

Does having rs9391774 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 rs9391774 come from?

GWAS Catalog, Cell 2020, PMID:32888494. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

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Platelet distribution width (rs9391774). MyGeneLog™. https://www.mygenelog.com/variants/rs9391774

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