主要组织相容性复合体（MHC）是一群紧密连锁的基因，编码主要组织相容性抗原，在脊椎动物机体的免疫应答中具有重要作用。
The major histocompatibility complex( MHC) is a group of closely-linked gene, Which code the major histocompatibility antigen and play a critical role in immune response in vertebrate animals.
目的探讨中国汉族人群5-羟色胺转运体基因连锁多态性区域（5-HTTLPR）与抑郁症及临床特征的相关性。
Objective To investigate the association of the polymorphism of serotonin transporter gene linked polymorphic(5-HTTLPR) region with depression and its clinical symptoms in the Han Chinese.
ALAS2的缺失能导致红细胞发育的停滞，ALAS2基因的遗传性突变能引起X-连锁的成高铁红细胞贫血（XLSA）。
The absence of ALAS2 leads to maturation arrest of primitive erythroid cells. Heritable mutations of ALAS2 gene are responsible for the human X-linked sideroblastic anemia (XLSA).
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