rs41303899
This variant is located in the TUBB1 gene.
▶GWAS Catalog Trait Associations (9)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
GWAS Catalog Trait Associations (9)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
platelet component distribution width
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele A
OR 1.56
p —
N 408,112
Large GWAS
European
Astle WJ et al. “The Allelic Landscape of Human Blood Cell Trait Variation and Links to Common Complex Disease.” Cell 167(5):1415-1429.e19 (2016)
Allele A
OR 1.30
p 1.0e-134
N 164,433
Large GWAS
European
platelet count
Jee YH et al. “Genome-wide association studies in a large Korean cohort identify quantitative trait loci for 36 traits and illuminate their genetic architectures.” Nature Communications 16(1):4935 (2025)
Allele A
OR 1.09
p 2.0e-201
N 928,679
Large GWAS
multi-ancestry
Chen MH et al. “Trans-ethnic and Ancestry-Specific Blood-Cell Genetics in 746,667 Individuals from 5 Global Populations.” Cell 182(5):1198-1213.e14 (2020)
Allele A
OR —
p 8.0e-111
N 721,201
Large GWAS
multi-ancestry
Sakaue S et al. “A cross-population atlas of genetic associations for 220 human phenotypes.” Nature Genetics 53(10):1415-1424 (2021)
Allele A
OR 0.69
p 4.0e-105
N 499,097
Large GWAS
multi-ancestry
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele A
OR 0.57
p 8.0e-67
N 408,112
Large GWAS
European
Verma A et al. “Diversity and scale: Genetic architecture of 2068 traits in the VA Million Veteran Program.” Science (new York, N.y.) 385(6706):eadj1182 (2024)
Allele A
OR 0.90
p 3.0e-136
N 406,601
Major Consortium StudyLarge GWAS
European
Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele A
OR 0.62
p 4.0e-156
N 394,642
Large GWAS
European
Astle WJ et al. “The Allelic Landscape of Human Blood Cell Trait Variation and Links to Common Complex Disease.” Cell 167(5):1415-1429.e19 (2016)
Allele A
OR 0.60
p 3.0e-30
N 166,066
Large GWAS
European
Auer PL et al. “Rare and low-frequency coding variants in CXCR2 and other genes are associated with hematological traits.” Nature Genetics 46(6):629-34 (2014)
Allele A
OR 32.80
p 1.0e-9
N 24,814
Large GWAS
European
platelet quantity
Akbari P et al. “A genome-wide association study of blood cell morphology identifies cellular proteins implicated in disease aetiology.” Nature Communications 14(1):5023 (2023)
Allele A
OR 1.58
p 5.0e-61
N 29,552
Large GWAS
European
immature platelet measurement
Akbari P et al. “A genome-wide association study of blood cell morphology identifies cellular proteins implicated in disease aetiology.” Nature Communications 14(1):5023 (2023)
Allele A
OR 1.32
p 6.0e-52
N 36,829
Large GWAS
European
immature platelet count
Akbari P et al. “A genome-wide association study of blood cell morphology identifies cellular proteins implicated in disease aetiology.” Nature Communications 14(1):5023 (2023)
Allele A
OR 1.18
p 2.0e-41
N 36,618
Large GWAS
European
platelet crit
Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele A
OR 0.32
p 4.0e-40
N 394,642
Large GWAS
European
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele A
OR 0.33
p 8.0e-24
N 408,112
Large GWAS
European
hemorrhagic disease
Verma A et al. “Diversity and scale: Genetic architecture of 2068 traits in the VA Million Veteran Program.” Science (new York, N.y.) 385(6706):eadj1182 (2024)
Allele G
OR 1.04
p 6.0e-28
N 433,727
Major Consortium StudyLarge GWAS
European
platelet volume
Vuckovic D et al. “The Polygenic and Monogenic Basis of Blood Traits and Diseases.” Cell 182(5):1214-1231.e11 (2020)
Allele G
OR 0.60
p 1.0e-73
N 408,112
Large GWAS
European
Loya H et al. “A scalable variational inference approach for increased mixed-model association power.” Nature Genetics 57(2):461-468 (2025)
Allele G
OR 0.69
p 9.0e-215
N 394,642
Large GWAS
European
Verma A et al. “Diversity and scale: Genetic architecture of 2068 traits in the VA Million Veteran Program.” Science (new York, N.y.) 385(6706):eadj1182 (2024)
Allele G
OR 1.23
p 2.0e-215
N 335,593
Major Consortium StudyLarge GWAS
European
Astle WJ et al. “The Allelic Landscape of Human Blood Cell Trait Variation and Links to Common Complex Disease.” Cell 167(5):1415-1429.e19 (2016)
Allele G
OR 0.66
p 8.0e-36
N 164,454
Large GWAS
European
thrombocytopenia 4
Verma A et al. “Diversity and scale: Genetic architecture of 2068 traits in the VA Million Veteran Program.” Science (new York, N.y.) 385(6706):eadj1182 (2024)
Allele G
OR 1.09
p 3.0e-29
N 437,350
Major Consortium StudyLarge GWAS
European
▶ClinVar annotation
Conflicting Classifications
8 submitters9 publicationsThrombocytopenia; Macrothrombocytopenia; not provided; Macrothrombocytopenia, isolated, 1, autosomal dominant; TUBB1-related disorder; not specified
View on ClinVar →About TUBB1
This gene encodes a member of the beta tubulin protein family. Beta tubulins are one of two core protein families (alpha and beta tubulins) that heterodimerize and assemble to form microtubules. This protein is specifically expressed in platelets and megakaryocytes and may be involved in proplatelet production and platelet release. A mutations in this gene is associated with autosomal dominant macrothrombocytopenia. Two pseudogenes of this gene are found on chromosome Y.[provided by RefSeq, Jul 2010]
View all TUBB1 variants →Gene information from NCBI Gene. Variant classifications from ClinVar.
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