1jpa: Difference between revisions
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|PDB= 1jpa |SIZE=350|CAPTION= <scene name='initialview01'>1jpa</scene>, resolution 1.91Å | |PDB= 1jpa |SIZE=350|CAPTION= <scene name='initialview01'>1jpa</scene>, resolution 1.91Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER'>ANP</scene> | |LIGAND= <scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY= | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jpa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jpa OCA], [http://www.ebi.ac.uk/pdbsum/1jpa PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1jpa RCSB]</span> | |||
}} | }} | ||
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[[Category: Sicheri, F.]] | [[Category: Sicheri, F.]] | ||
[[Category: Wybenga-Groot, L E.]] | [[Category: Wybenga-Groot, L E.]] | ||
[[Category: autoinhibited]] | [[Category: autoinhibited]] | ||
[[Category: juxtamembrane]] | [[Category: juxtamembrane]] | ||
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[[Category: unphosphorylated]] | [[Category: unphosphorylated]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:36:54 2008'' | ||
Revision as of 21:37, 30 March 2008
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| , resolution 1.91Å | |||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of unphosphorylated EphB2 receptor tyrosine kinase and juxtamembrane region
OverviewOverview
The Eph receptor tyrosine kinase family is regulated by autophosphorylation within the juxtamembrane region and the kinase activation segment. We have solved the X-ray crystal structure to 1.9 A resolution of an autoinhibited, unphosphorylated form of EphB2 comprised of the juxtamembrane region and the kinase domain. The structure, supported by mutagenesis data, reveals that the juxtamembrane segment adopts a helical conformation that distorts the small lobe of the kinase domain, and blocks the activation segment from attaining an activated conformation. Phosphorylation of conserved juxtamembrane tyrosines would relieve this autoinhibition by disturbing the association of the juxtamembrane segment with the kinase domain, while liberating phosphotyrosine sites for binding SH2 domains of target proteins. We propose that the autoinhibitory mechanism employed by EphB2 is a more general device through which receptor tyrosine kinases are controlled.
About this StructureAbout this Structure
1JPA is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
ReferenceReference
Structural basis for autoinhibition of the Ephb2 receptor tyrosine kinase by the unphosphorylated juxtamembrane region., Wybenga-Groot LE, Baskin B, Ong SH, Tong J, Pawson T, Sicheri F, Cell. 2001 Sep 21;106(6):745-57. PMID:11572780
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