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Mean corpuscular hemoglobin

CHD2 · rs12905032

Where this position leads

What the study found

Who was studied 408,112 British individuals.

The effect Each copy of the T allele shifted the measure 0.0168 lower (95% confidence interval 0.012-0.022); p = 2 × 10⁻¹¹.

How common The T allele had a frequency of about 27% in the people studied.

Where it sits Chromosome 15, band 15q26.1 — in an intron of CHD2.

What ClinVar records

Classification Benign for Developmental and epileptic encephalopathy 94; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 4 submitters), last evaluated 2024-07-15. ClinVar record 680101 NM_001271.4(CHD2):c.5154-75C>T

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

C/C No copy of the version the research linked to Mean corpuscular hemoglobin. This is the starting point the study compared everyone against.

C/T One copy of the version the research linked to Mean corpuscular hemoglobin. That is a smaller link than two copies.

T/T Two copies of the version the research linked to Mean corpuscular hemoglobin. That is the strongest link of the three results. A link in a study is not a diagnosis.

Source

The Polygenic and Monogenic Basis of Blood Traits and Diseases

Vuckovic D, Bao EL, Akbari P, Lareau CA, Mousas A, Jiang T, Chen MH, Raffield LM, Tardaguila M, Huffman JE, Ritchie SC, Megy K

and 100 more — show all

Ponstingl H, Penkett CJ, Albers PK, Wigdor EM, Sakaue S, Moscati A, Manansala R, Lo KS, Qian H, Akiyama M, Bartz TM, Ben-Shlomo Y, Beswick A, Bork-Jensen J, Bottinger EP, Brody JA, van Rooij FJA, Chitrala KN, Wilson PWF, Choquet H, Danesh J, Di Angelantonio E, Dimou N, Ding J, Elliott P, Esko T, Evans MK, Felix SB, Floyd JS, Broer L, Grarup N, Guo MH, Guo Q, Greinacher A, Haessler J, Hansen T, Howson JMM, Huang W, Jorgenson E, Kacprowski T, Kähönen M, Kamatani Y, Kanai M, Karthikeyan S, Koskeridis F, Lange LA, Lehtimäki T, Linneberg A, Liu Y, Lyytikäinen LP, Manichaikul A, Matsuda K, Mohlke KL, Mononen N, Murakami Y, Nadkarni GN, Nikus K, Pankratz N, Pedersen O, Preuss M, Psaty BM, Raitakari OT, Rich SS, Rodriguez BAT, Rosen JD, Rotter JI, Schubert P, Spracklen CN, Surendran P, Tang H, Tardif JC, Ghanbari M, Völker U, Völzke H, Watkins NA, Weiss S, Cai N, Kundu K, Watt SB, Walter K, Zonderman AB, Cho K, Li Y, Loos RJF, Knight JC, Georges M, Stegle O, Evangelou E, Okada Y, Roberts DJ, Inouye M, Johnson AD, Auer PL, Astle WJ, Reiner AP, Butterworth AS, Ouwehand WH, Lettre G, Sankaran VG, Soranzo N

VA Million Veteran Program

Cell · 2020 · PMID 32888494 · open access

Questions about rs12905032

What is rs12905032?

rs12905032 is a single position in the genome, in or near the CHD2 gene. Published research associates it with mean corpuscular hemoglobin. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

What conditions is rs12905032 linked to?

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

Does having rs12905032 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 rs12905032 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

Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.

Mean corpuscular hemoglobin (rs12905032). MyGeneLog™. https://www.mygenelog.com/variants/rs12905032

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