1iam
From Proteopedia
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| - | [[Image:1iam.gif|left|200px]] | + | [[Image:1iam.gif|left|200px]] |
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| - | '''STRUCTURE OF THE TWO AMINO-TERMINAL DOMAINS OF HUMAN INTERCELLULAR ADHESION MOLECULE-1, ICAM-1''' | + | {{Structure |
| + | |PDB= 1iam |SIZE=350|CAPTION= <scene name='initialview01'>1iam</scene>, resolution 2.10Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''STRUCTURE OF THE TWO AMINO-TERMINAL DOMAINS OF HUMAN INTERCELLULAR ADHESION MOLECULE-1, ICAM-1''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1IAM is a [ | + | 1IAM is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IAM OCA]. |
==Reference== | ==Reference== | ||
| - | The structure of the two amino-terminal domains of human ICAM-1 suggests how it functions as a rhinovirus receptor and as an LFA-1 integrin ligand., Bella J, Kolatkar PR, Marlor CW, Greve JM, Rossmann MG, Proc Natl Acad Sci U S A. 1998 Apr 14;95(8):4140-5. PMID:[http:// | + | The structure of the two amino-terminal domains of human ICAM-1 suggests how it functions as a rhinovirus receptor and as an LFA-1 integrin ligand., Bella J, Kolatkar PR, Marlor CW, Greve JM, Rossmann MG, Proc Natl Acad Sci U S A. 1998 Apr 14;95(8):4140-5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9539703 9539703] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: transmembrane]] | [[Category: transmembrane]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:47:47 2008'' |
Revision as of 09:47, 20 March 2008
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| , resolution 2.10Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF THE TWO AMINO-TERMINAL DOMAINS OF HUMAN INTERCELLULAR ADHESION MOLECULE-1, ICAM-1
Contents |
Overview
The normal function of human intercellular adhesion molecule-1 (ICAM-1) is to provide adhesion between endothelial cells and leukocytes after injury or stress. ICAM-1 binds to leukocyte function-associated antigen (LFA-1) or macrophage-1 antigen (Mac-1). However, ICAM-1 is also used as a receptor by the major group of human rhinoviruses and is a catalyst for the subsequent viral uncoating during cell entry. The three-dimensional atomic structure of the two amino-terminal domains (D1 and D2) of ICAM-1 has been determined to 2.2-A resolution and fitted into a cryoelectron microscopy reconstruction of a rhinovirus-ICAM-1 complex. Rhinovirus attachment is confined to the BC, CD, DE, and FG loops of the amino-terminal Ig-like domain (D1) at the end distal to the cellular membrane. The loops are considerably different in structure to those of human ICAM-2 or murine ICAM-1, which do not bind rhinoviruses. There are extensive charge interactions between ICAM-1 and human rhinoviruses, which are mostly conserved in both major and minor receptor groups of rhinoviruses. The interaction of ICAMs with LFA-1 is known to be mediated by a divalent cation bound to the insertion (I)-domain on the alpha chain of LFA-1 and the carboxyl group of a conserved glutamic acid residue on ICAMs. Domain D1 has been docked with the known structure of the I-domain. The resultant model is consistent with mutational data and provides a structural framework for the adhesion between these molecules.
Disease
Known disease associated with this structure: Malaria, cerebral, susceptibility to OMIM:[147840]
About this Structure
1IAM is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The structure of the two amino-terminal domains of human ICAM-1 suggests how it functions as a rhinovirus receptor and as an LFA-1 integrin ligand., Bella J, Kolatkar PR, Marlor CW, Greve JM, Rossmann MG, Proc Natl Acad Sci U S A. 1998 Apr 14;95(8):4140-5. PMID:9539703
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