View source for 1acf

[[Image:1acf.gif|left|200px]]

 {{Structure
|PDB= 1acf |SIZE=350|CAPTION= <scene name='initialview01'>1acf</scene>, resolution 2.0&Aring;
|SITE= 
|LIGAND= 
|ACTIVITY= 
|GENE= 
}}

'''ACANTHAMOEBA CASTELLANII PROFILIN IB'''


==Overview==
We determined the structures of Acanthamoeba profilin I and profilin II by x-ray crystallography at resolutions of 2.0 and 2.8 A, respectively. The polypeptide folds and the actin-binding surfaces of the amoeba profilins are very similar to those of bovine and human profilins. The electrostatic potential surfaces of the two Acanthamoeba isoforms differ. Two areas of high positive potential on the surface of profilin II are candidate binding sites for phosphatidylinositol phosphates. The proximity of these sites to the actin binding site provides an explanation for the competition between actin and lipids for binding profilin.

==About this Structure==
1ACF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Acanthamoeba_castellanii Acanthamoeba castellanii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ACF OCA]. 

==Reference==
X-ray structures of isoforms of the actin-binding protein profilin that differ in their affinity for phosphatidylinositol phosphates., Fedorov AA, Magnus KA, Graupe MH, Lattman EE, Pollard TD, Almo SC, Proc Natl Acad Sci U S A. 1994 Aug 30;91(18):8636-40. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8078936 8078936]
[[Category: Acanthamoeba castellanii]]
[[Category: Single protein]]
[[Category: Almo, S C.]]
[[Category: Fedorov, A A.]]
[[Category: Graupe, M H.]]
[[Category: Lattman, E E.]]
[[Category: Magnus, K A.]]
[[Category: Pollard, T D.]]
[[Category: actin-binding protein]]
[[Category: profilin]]
[[Category: protein binding]]

''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 09:55:42 2008''