[molecular_function] acetylcholine receptor activator activity <sep> ATP binding <sep> cyclin-dependent protein serine/threonine kinase activity <sep> cytoskeletal protein binding <sep> ephrin receptor binding <sep> ErbB-2 class receptor binding <sep> ErbB-3 class receptor binding <sep> histone kinase activity <sep> Hsp90 protein binding <sep> kinase activity <sep> p53 binding <sep> protein kinase activity <sep> protein kinase binding <sep> protein serine kinase activity <sep> protein serine/threonine kinase activity <sep> tau-protein kinase activity