不冻蛋白质（抗冻蛋白）（Antifreeze proteins ，AFPs）或叫冰结构蛋白（ice structuring proteins ，ISPs)是指一类由某些脊椎动物、植物、真菌和细菌产生的多肽。
抗冻蛋白是一类抑制冰晶生长和修饰冰晶形态的蛋白质，赋予无体温调节能力的生物在低温的环境里得以生存。
Antifreeze proteins are a kind of protein inhibiting the growth of ice crystals and modifying the conformation of ice crystals, conferring freeze resistance to biology without temperature modulation.
抗冻蛋白是一类广泛存在的具有热滞活性、能改变冰晶生长特性和抑制冰晶重结晶的蛋白质。
Antifreeze proteins (AFPs), with the thermal hysteresis activity, are wildly distributed proteins which can change the growth and inhibit the recrystallization of the ice.
抗冻蛋白是一种能抑制冰晶生长的蛋白质或糖蛋白质。
Antifreeze proteins (AFPs) were a kind of protein or glycoprotein which inhibited the growth of ice crystals.
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