How large are the proteins that can pass membranes of intestine epitelium?

Subject: How large are the proteins that can pass membranes of intestine epitelium?

Date: Mon Apr 26 06:19:07 2004
Posted by Alex
Grade level: teacher/prof School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Biochemistry
ID: 1082978347.Bc

Message:


During digestion proteins are ruined by proteases - acid in stomach and based 
in intestine. Commonly known that epitheliocytes can let in separated 
aminoacids. Are there any large proteins (more than 20 000 dalton), which could 
stay native through digestion, and more - pass through intestine epitheliocyte, 
basal membrane, endotheliocyte of capillar and enter the blood serum? I've been 
told by non-specialist that some lectins could, but it seems strange to me.

Re: How large are the proteins that can pass membranes of intestine epitelium?

Current Queue | Current Queue for Biochemistry | Biochemistry archives

Try the links in the MadSci Library for more information on Biochemistry.