intrinsic protein的难题

我是汉人

我有关于intrinsic protein 的难题，请大家帮我决解。

intrinsic protein has hydrophobic and hydrophilic region...which part of the intrinsic protein is hydrophobic region...the portion that embedded in the phospholipid bilayer or the portion that outside of the phospholipid bilayer??My book show an antagonistic diagram that the hydrophobic region of protein channel is embedded in the phospholipid bilayer whereas the hydrophobic region of a globular protein that embedded partially in the phospholipid bilayer is outside of the phospholipid bilayer ....so..i wish someone here can teach me about that....besides that...can someone teach me what is hydrophobic attraction?? thx for those that are willing to teach me...thx a lot!!

[ 本帖最后由 我是汉人 于 8-4-2008 12:19 PM 编辑 ]

tenchi

膜蛋白，分内在蛋白和外在蛋白两种。内在蛋白以疏水的部分直接与磷脂的疏水部分共价结合，两端带有极性，贯穿膜的内外。蛋白质极性：膜内在性蛋白质的极性区突向膜表面，非极性部分埋在双层内部。

alpha helix amino acids are mostly hydrophobic in character. Long (20 aa) sequence hydrophobic aa residues span membrane.

http://www.unmc.edu/Physiology/Mann/mann3a.html

feimun3013

hydrophobic应该是向内的那个吧...

我是汉人

谢谢大家的教导。请问你门还有关于生物知识的网站吗？我对生物很有兴趣。。。

staf_ferry

原帖由 我是汉人 于 12-4-2008 03:36 PM 发表
谢谢大家的教导。请问你门还有关于生物知识的网站吗？我对生物很有兴趣。。。

可以直接买本campbell来看，还有cd,非常实用

我是汉人

噢。。。谢谢提醒。