000 03007na a2200289 4500
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008 130622s2011 xxx||||| |||| 00| 0 eng d
040 _cH12O
041 _aeng
100 _aGarcía-Consuegra Galiana, Inés
_91867
_eInstituto de Investigación i+12
100 _aHoenicka, Janet
_91868
_ePsiquiatría
100 _9656
_aJiménez Arriero, Miguel Ángel
_ePsiquiatría
100 _9653
_aPalomo Álvarez, Tomás
_d(1989-2010)
_ePsiquiatría
100 _aPonce Alfaro, Guillermo
_9727
_ePsiquiatría
245 0 3 _aThe ANKK1 protein associated with addictions has nuclear and cytoplasmic localization and shows a differential response of Ala239Thr to apomorphine
_h[artículo]
260 _bNeurotoxicity Research,
_c2011.
300 _a20(1):32-39.
500 _aFormato Vancouver: Garrido E, Palomo T, Ponce G, García Consuegra I, Jiménez Arriero MA, Hoenicka J. The ANKK1 protein associated with addictions has nuclear and cytoplasmic localization and shows a differential response of Ala239Thr to apomorphine. Neurotox Res. 2011;20(1):32-9.
501 _aPMID: 20845092
504 _aContiene 26 referencias
520 _aThe TaqIA single-nucleotide polymorphism (SNP), which is the most widely studied genetic polymorphism in addictions, is located at the gene that encodes the RIP kinase ANKK1 near the gene for dopamine receptor D2. The TaqIA SNP is in strong linkage disequilibrium with the SNP rs7118900, which changes the alanine at position 239 to threonine in the ANKK1 protein (Ala239/A2; Thr239/A1). In silico analysis has predicted that this polymorphic substitution creates an additional phosphorylation site in the kinase domain of ANKK1. To investigate the contribution of ANKK1 to the pathophysiology of TaqIA-associated phenotypes, we analyzed transfected HEK293T cells with the human ANKK1-kinase(Ala239) and ANKK1-kinase(Thr239) variants tagged with GFP. We observed that the ANKK1-kinase is located in both the nucleus and the cytoplasm, suggesting that there is nucleocytoplasmic shuttling of this putative signal transducer. In addition, we found that the Ala239Thr ANKK1-kinase polymorphism exhibited strong expression differences in both the nucleus and the cytoplasm at basal level and when stimulated with the dopamine agonist apomorphine. Specifically, the ANKK1-kinase(Thr239) variant showed the highest level of basal protein expression, while ANKK1-kinase(Ala239) was 0.64-fold lower. After treatment with apomorphine, ANKK1-kinase(Ala239) showed a 2.4-fold increment in protein levels, whereas a 0.67-fold reduction was observed in ANKK1-kinase(Thr239). Thus, here we provide the first evidence of functional ANKK1 differences that are marked by TaqIA and could be associated with vulnerability to addiction.
710 _9150
_aServicio de Psiquiatría
710 _9625
_aInstituto de Investigación imas12
856 _uhttp://pc-h12o-es.m-hdoct.a17.csinet.es/pdf/pc/9/pc9371.pdf
_ySolicitar documento
942 _n0
_2ddc
_cART
999 _c9371
_d9371