嘌呤核苷酸(purine nucleotides)之分解過程中，何種酵素之先天性缺陷會造成dATP 貯積，傷害免疫細胞，引起嚴重之免疫缺乏症(immunodeficiency)？
adenine phosphoribsyl transferase
xanthine oxidase
adenosine deaminase
purine nucleoside phosphorylase
