bound: n.〔pl.〕1.界限,界线,限度。2.边界,边境;边界线内的领土。3.区域,领域,范围。短语和例子the bounds of space and time 时空范围。 the farthest bounds of the ocean 大洋最远的界限。 beyond the bounds of 越出…的范围以外,为…所不及。 break bounds 越轨;过度,逾限;【军
Both rad6 and ubcls are ubiquitin - conjugating enzymes , and mms2 is a ubc - like protein . radls and rad5 are both single strand binding ring linger proteins . rad6 binds to radls and mms2 - ubcls binds to rad5 在泛素系统中起主要作用的是三种酶:泛素激活酶e1 ;泛素缀合酶e2 / ubc和泛素连接酶e3 。