1mq8: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
No edit summary
No edit summary
Line 1: Line 1:
[[Image:1mq8.jpg|left|200px]]
{{Seed}}
[[Image:1mq8.png|left|200px]]


<!--
<!--
Line 9: Line 10:
{{STRUCTURE_1mq8|  PDB=1mq8  |  SCENE=  }}  
{{STRUCTURE_1mq8|  PDB=1mq8  |  SCENE=  }}  


'''Crystal structure of alphaL I domain in complex with ICAM-1'''
===Crystal structure of alphaL I domain in complex with ICAM-1===




==Overview==
<!--
The structure of the I domain of integrin alpha L beta 2 bound to the Ig superfamily ligand ICAM-1 reveals the open ligand binding conformation and the first example of an integrin-IgSF interface. The I domain Mg2+ directly coordinates Glu-34 of ICAM-1, and a dramatic swing of I domain residue Glu-241 enables a critical salt bridge. Liganded and unliganded structures for both high- and intermediate-affinity mutant I domains reveal that ligand binding can induce conformational change in the alpha L I domain and that allosteric signals can convert the closed conformation to intermediate or open conformations without ligand binding. Pulling down on the C-terminal alpha 7 helix with introduced disulfide bonds ratchets the beta 6-alpha 7 loop into three different positions in the closed, intermediate, and open conformations, with a progressive increase in affinity.
The line below this paragraph, {{ABSTRACT_PUBMED_12526797}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 12526797 is the PubMed ID number.
-->
{{ABSTRACT_PUBMED_12526797}}


==About this Structure==
==About this Structure==
Line 37: Line 41:
[[Category: Metal mediated protein interface]]
[[Category: Metal mediated protein interface]]
[[Category: Rossmann fold]]
[[Category: Rossmann fold]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 01:35:17 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jul 3 00:51:41 2008''

Revision as of 00:51, 3 July 2008

File:1mq8.png

Template:STRUCTURE 1mq8

Crystal structure of alphaL I domain in complex with ICAM-1Crystal structure of alphaL I domain in complex with ICAM-1

Template:ABSTRACT PUBMED 12526797

About this StructureAbout this Structure

1MQ8 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

Structures of the alpha L I domain and its complex with ICAM-1 reveal a shape-shifting pathway for integrin regulation., Shimaoka M, Xiao T, Liu JH, Yang Y, Dong Y, Jun CD, McCormack A, Zhang R, Joachimiak A, Takagi J, Wang JH, Springer TA, Cell. 2003 Jan 10;112(1):99-111. PMID:12526797

Page seeded by OCA on Thu Jul 3 00:51:41 2008

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA