GP1BA Chromosome 17

Glycoprotein Ib platelet subunit alpha
47 variants 47 Health Risk

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What This Gene Does
Glycoprotein Ib (GP Ib) is a platelet surface membrane glycoprotein composed of a heterodimer, an alpha chain and a beta chain, that is linked by disulfide bonds. The Gp Ib functions as a receptor for von Willebrand factor (VWF). The complete receptor complex includes noncovalent association of the alpha and beta subunits with platelet glycoprotein IX and platelet glycoprotein V. The binding of the GP Ib-IX-V complex to VWF facilitates initial platelet adhesion to vascular subendothelium after vascular injury, and also initiates signaling events within the platelet that lead to enhanced platelet activation, thrombosis, and hemostasis. This gene encodes the alpha subunit. Mutations in this gene result in Bernard-Soulier syndromes and platelet-type von Willebrand disease. The coding region of this gene is known to contain a polymophic variable number tandem repeat (VNTR) domain that is associated with susceptibility to nonarteritic anterior ischemic optic neuropathy. [provided by RefSeq, Oct 2013]
Gene Info
Gene Group
"CD molecules|Human platelet antigens"
Locus Type
gene with protein product
Location
17p13.2
Ensembl
ENSG00000185245
Associated Conditions (14)
Macrothrombocytopenia
GP1BA-related disorder
Inborn genetic diseases
Bernard Soulier syndrome
Bernard-Soulier syndrome
type A2
autosomal dominant
Thrombocytopenia
Abnormal bleeding
Nonarteritic anterior ischemic optic neuropathy
susceptibility to
Pseudo von Willebrand disease
type A1
Impaired ristocetin-induced platelet aggregation
Key Variants
All Variants (47)
RSID Category Clinical Significance Conditions
RS1597638398 Health Risk Conflicting classifications of pathogenicity Macrothrombocytopenia, GP1BA-related disorder, Macrothrombocytopenia
RS201621946 Health Risk Conflicting classifications of pathogenicity Inborn genetic diseases, Inborn genetic diseases
RS760759446 Health Risk Conflicting classifications of pathogenicity Bernard Soulier syndrome, Bernard-Soulier syndrome, type A2
RS765422613 Health Risk Conflicting classifications of pathogenicity Inborn genetic diseases, Inborn genetic diseases
RS121908063 Health Risk Likely pathogenic Bernard-Soulier syndrome, type A2, autosomal dominant
RS1375190381 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS1555549041 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS1597638300 Health Risk Likely pathogenic Macrothrombocytopenia, Bernard-Soulier syndrome, type A2
RS1597638681 Health Risk Likely pathogenic Thrombocytopenia, Thrombocytopenia
RS1597638745 Health Risk Likely pathogenic Macrothrombocytopenia, Thrombocytopenia, Bernard-Soulier syndrome
RS1597638753 Health Risk Likely pathogenic Thrombocytopenia, Thrombocytopenia
RS1597639057 Health Risk Likely pathogenic Thrombocytopenia, Thrombocytopenia
RS1597640885 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS1970365829 Health Risk Likely pathogenic Abnormal bleeding, Thrombocytopenia, Abnormal bleeding
RS1970392127 Health Risk Likely pathogenic
RS2151107674 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS2151107696 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS2151107705 Health Risk Likely pathogenic Bernard-Soulier syndrome, type A2, autosomal dominant
RS2151108313 Health Risk Likely pathogenic
RS2151108738 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS2507592636 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS2507593310 Health Risk Likely pathogenic Bernard Soulier syndrome, Nonarteritic anterior ischemic optic neuropathy, susceptibility to
RS2507593916 Health Risk Likely pathogenic Bernard-Soulier syndrome, type A1, Bernard-Soulier syndrome
RS759573909 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard-Soulier syndrome, type A2
RS767224320 Health Risk Likely pathogenic Bernard-Soulier syndrome, type A2, autosomal dominant
RS771048666 Health Risk Likely pathogenic Bernard Soulier syndrome, Bernard-Soulier syndrome, type A2
RS121908061 Health Risk Pathogenic Bernard-Soulier syndrome, type A1, Bernard-Soulier syndrome
RS121908062 Health Risk Pathogenic Pseudo von Willebrand disease, Pseudo von Willebrand disease, Pseudo von Willebrand disease
RS121908065 Health Risk Pathogenic Bernard-Soulier syndrome, type A1, type A2
RS1312683854 Health Risk Pathogenic
RS1394634674 Health Risk Pathogenic Bernard-Soulier syndrome, type A1, type A2
RS1597638379 Health Risk Pathogenic Macrothrombocytopenia, Macrothrombocytopenia
RS2151107661 Health Risk Pathogenic Bernard-Soulier syndrome, type A2, autosomal dominant
RS2151107940 Health Risk Pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS2151107964 Health Risk Pathogenic Pseudo von Willebrand disease, Pseudo von Willebrand disease
RS2151108403 Health Risk Pathogenic Pseudo von Willebrand disease, Pseudo von Willebrand disease
RS2507594247 Health Risk Pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS2507595200 Health Risk Pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS267606849 Health Risk Pathogenic Bernard-Soulier syndrome, type A1, type A2
RS753768072 Health Risk Pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS763978422 Health Risk Pathogenic Bernard Soulier syndrome, Bernard-Soulier syndrome, type A2
RS765474118 Health Risk Pathogenic Pseudo von Willebrand disease, Pseudo von Willebrand disease
RS773663190 Health Risk Pathogenic Thrombocytopenia, Abnormal bleeding, Bernard-Soulier syndrome
RS774388410 Health Risk Pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS781541857 Health Risk Pathogenic Bernard Soulier syndrome, Bernard Soulier syndrome
RS121908064 Health Risk Pathogenic/Likely pathogenic Pseudo von Willebrand disease, Thrombocytopenia, Impaired ristocetin-induced platelet aggregation
RS1597638598 Health Risk Pathogenic/Likely pathogenic Thrombocytopenia, Bernard-Soulier syndrome, type A2
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