2hkq: Difference between revisions

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{{STRUCTURE_2hkq|  PDB=2hkq  |  SCENE=  }}  
{{STRUCTURE_2hkq|  PDB=2hkq  |  SCENE=  }}  


'''Crystal structure of the C-terminal domain of human EB1 in complex with the CAP-Gly domain of human Dynactin-1 (p150-Glued)'''
===Crystal structure of the C-terminal domain of human EB1 in complex with the CAP-Gly domain of human Dynactin-1 (p150-Glued)===




==Overview==
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Dynamic microtubule plus-end tracking protein (+TIP) networks are implicated in all functions of microtubules, but the molecular determinants of their interactions are largely unknown. Here, we have explored key binding modes of +TIPs by analyzing the interactions between selected CAP-Gly, EB-like, and carboxy-terminal EEY/F-COO(-) sequence motifs. X-ray crystallography and biophysical binding studies demonstrate that the beta2-beta3 loop of CAP-Gly domains determines EB-like motif binding specificity. They further show how CAP-Gly domains serve as recognition domains for EEY/F-COO(-) motifs, which represent characteristic and functionally important sequence elements in EB, CLIP-170, and alpha-tubulin. Our findings provide a molecular basis for understanding the modular interaction modes between alpha-tubulin, CLIPs, EB proteins, and the dynactin-dynein motor complex and suggest that multiple low-affinity binding sites in different combinations control dynamic +TIP networks at microtubule ends. They further offer insights into the structural consequences of genetic CAP-Gly domain defects found in severe human disorders.
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==Disease==
==Disease==
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[[Category: Microtubule binding]]
[[Category: Microtubule binding]]
[[Category: P150glued]]
[[Category: P150glued]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 06:24:20 2008''
 
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Revision as of 06:24, 29 July 2008

File:2hkq.png

Template:STRUCTURE 2hkq

Crystal structure of the C-terminal domain of human EB1 in complex with the CAP-Gly domain of human Dynactin-1 (p150-Glued)Crystal structure of the C-terminal domain of human EB1 in complex with the CAP-Gly domain of human Dynactin-1 (p150-Glued)

Template:ABSTRACT PUBMED 16949363

DiseaseDisease

Known disease associated with this structure: Neuropathy, distal hereditary motor, type VIIB OMIM:[601143], Amyotrophic lateral sclerosis, susceptibility to OMIM:[601143]

About this StructureAbout this Structure

2HKQ is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

Key interaction modes of dynamic +TIP networks., Honnappa S, Okhrimenko O, Jaussi R, Jawhari H, Jelesarov I, Winkler FK, Steinmetz MO, Mol Cell. 2006 Sep 1;23(5):663-71. PMID:16949363

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