| Range |
600 to 700 Da
|
| Organism |
bacteria |
| Reference |
Hengge R, Boos W. Maltose and lactose transport in Escherichia coli. Examples of two different types of concentrative transport systems. Biochim Biophys Acta. 1983 Aug 11 737(3-4):443-78. p.448 right column 3rd paragraphPubMed ID6349688
|
| Primary Source |
Nakae T. Outer membrane of Salmonella. Isolation of protein complex that produces transmembrane channels. J Biol Chem. 1976 Apr 10 251(7):2176-8.PubMed ID773934
|
| Method |
"This size limit has been determined by the ability
of substrate loaded and porin containing liposomes
to retain their substrate during Sephadex
chromatography." |
| Comments |
"The porins are
considered as molecular sieves that allow the permeation
of molecules only below a certain size...Using carbohydrates this size
limit has been determined to be Mr 600-700 [primary source]. Unfortunately, this simplified view has led to some
misunderstanding in porin function. Even far below
the size limit there are large differences in the
rate of diffusion for two different molecules." |
| Entered by |
Uri M |
| ID |
109800 |