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今天看文献遇到一个词,叫haplosufficiency。该词找不到解释和汉译,为了丰富中文互联网和为后进者提供足够的资讯,笔者遍查英文网上资源,勉强给出译名及提供两条解释如下。
“haplosufficiency”由“haplo”和“sufficiency”合成,“haplo”的意思为“single(单个的、单倍的)”,而“sufficiency”意思为“adequate或enough(足够的、充足的)”。因此将它译为“单倍足够性”(读起来有点别扭)。
单倍足够性(haplosufficiency)定义:
1、Recessive alleles (any one of a number of viable DNA codings of the same gene) typically produce little or no product. One instance of the wild-type allele produces sufficient product to result in a dominant phenotype. This is called haplo-sufficiency. 隐性等位基因通常产生很少的产物(RNA或蛋白质)或根本不产生产物(RNA或蛋白质),而一个野生型等位基因就可产生足够的产物(RNA或蛋白质),从而使个体表现显性表型。
2、Diseases caused by recessive mutations require both alleles to be affected, as the production of a functional protein from one allele is often enough to satisfy physiological requirements. 隐性突变导致的疾病需要两个等位基因都是隐性突变才能产生,因为只要一个等位基因产生有功能蛋白就足以满足(正常的)生理需求。
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