Ankyrin Repeat and Kinase Domain Containing 1 Gene, and Addiction Vulnerability



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Koeneke, Alejandra and Ponce Alfaro, Guillermo and Troya-Balseca, Johanna and Palomo Álvarez, Tomás and Hoenicka, Janet (2020) Ankyrin Repeat and Kinase Domain Containing 1 Gene, and Addiction Vulnerability. International Journal of Molecular Sciences, 21 (7). p. 2516. ISSN 1422-0067

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The TaqIA single nucleotide variant (SNV) has been tested for association with addictions in a huge number of studies. TaqIA is located in the ankyrin repeat and kinase domain containing 1 gene (ANKK1) that codes for a receptor interacting protein kinase. ANKK1 maps on the NTAD cluster along with the dopamine receptor D2 (DRD2), the tetratricopeptide repeat domain 12 (TTC12) and the neural cell adhesion molecule 1 (NCAM1) genes. The four genes have been associated with addictions, although TTC12 and ANKK1 showed the strongest associations. In silico and in vitro studies revealed that ANKK1 is functionally related to the dopaminergic system, in particular with DRD2. In antisocial alcoholism, epistasis between ANKK1 TaqIA and DRD2 C957T SNVs has been described. This clinical finding has been supported by the study of ANKK1 expression in peripheral blood mononuclear cells of alcoholic patients and controls. Regarding the ANKK1 protein, there is direct evidence of its location in adult and developing central nervous system. Together, these findings of the ANKK1 gene and its protein suggest that the TaqIA SNV is a marker of brain differences, both in structure and in dopaminergic function, that increase individual risk to addiction development.

Item Type:Article
Uncontrolled Keywords:ANKK1; TaqIA; DRD2; addictions; dopamine; neurodevelopment
Subjects:Medical sciences > Medicine > Neurosciences
Medical sciences > Medicine > Psychiatry
ID Code:65883
Deposited On:10 Jun 2021 14:28
Last Modified:10 Jun 2021 15:42

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