earticle

영어

Some Antarctic marine algae are known to produce a specialized protein group called antifreeze proteins (AFPs) or ice structuring proteins (ISPs). AFPs are a group of structurally very diverse proteins with the unique capability of inhibiting ice crystal growth for their survival in subzero environments. These proteins can protect organisms from freezing injury by adsorbing on ice surface.
Ice crystal growth ceases when the surface concentration of adsorbed AFP molecules exceeds a critical concentration. Two microalgae, named AnF0046 and AnF0048, were used in this research among the microalgae isolated from Antarctic Ocean by KOPRI. While the exact mechanism or the detailed properties of AFPs produced by these antarctic marine algae are not complete understood, we have confirmed the activity of AFPs using various techniques
and compared the antifreeze characteristics of AFPs produced by these algae with other AFPs produced by other Antarctic organisms.