This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


2d3i

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 1: Line 1:
-
[[Image:2d3i.gif|left|200px]]
+
{{Seed}}
 +
[[Image:2d3i.png|left|200px]]
<!--
<!--
Line 9: Line 10:
{{STRUCTURE_2d3i| PDB=2d3i | SCENE= }}
{{STRUCTURE_2d3i| PDB=2d3i | SCENE= }}
-
'''Crystal Structure of Aluminum-Bound Ovotransferrin at 2.15 Angstrom Resolution'''
+
===Crystal Structure of Aluminum-Bound Ovotransferrin at 2.15 Angstrom Resolution===
-
==Overview==
+
<!--
-
Transferrin, well known as an iron-transport protein, can bind other metal ions, including toxic ones, and is considered to play an important role in the transportation of such metal ions. Here, a crystal structure of aluminium-bound transferrin is described for the first time. Colourless needle-shaped crystals of aluminium-bound ovotransferrin were obtained in PEG 400 solution. Structural determination was performed by molecular replacement using diferric (iron-bound) ovotransferrin as a model and the structural refinement was performed in the 50-2.15 Angstroms resolution range. The overall organization of the aluminium-bound form is almost the same as the iron-bound form: the protein is folded into two homologous lobes (N- and C-lobes) with two domains; two metal-binding sites are located within the inter-domain clefts of each lobe. Four residues (one Asp, two Tyr and one His) and one bicarbonate anion were found to bind an aluminium ion in either lobe, as in the iron-bound form. The highly similar domain-closed structure of the Al(3+)-bound form may permit the binding of Al(3+)-bound transferrin to the transferrin receptor. An unusual interaction, the dilysine trigger, which facilitates iron release at low pH in the endosome, was also found in the Al(3+)-bound form. These findings support the participation of transferrin in the transport of Al(3+) ions in vivo.
+
The line below this paragraph, {{ABSTRACT_PUBMED_16301797}}, adds the Publication Abstract to the page
 +
(as it appears on PubMed at http://www.pubmed.gov), where 16301797 is the PubMed ID number.
 +
-->
 +
{{ABSTRACT_PUBMED_16301797}}
==About this Structure==
==About this Structure==
Line 30: Line 34:
[[Category: Transferrin]]
[[Category: Transferrin]]
[[Category: Transport]]
[[Category: Transport]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 23:38:06 2008''
+
 
 +
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 16:18:33 2008''

Revision as of 13:18, 27 July 2008

Image:2d3i.png

Template:STRUCTURE 2d3i

Crystal Structure of Aluminum-Bound Ovotransferrin at 2.15 Angstrom Resolution

Template:ABSTRACT PUBMED 16301797

About this Structure

2D3I is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.

Reference

Structure of aluminium-bound ovotransferrin at 2.15 Angstroms resolution., Mizutani K, Mikami B, Aibara S, Hirose M, Acta Crystallogr D Biol Crystallogr. 2005 Dec;61(Pt 12):1636-42. Epub 2005, Nov 19. PMID:16301797

Page seeded by OCA on Sun Jul 27 16:18:33 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2d3i"
Personal tools