1awi: Difference between revisions
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[[Image:1awi.gif|left|200px]]<br /> | [[Image:1awi.gif|left|200px]]<br /><applet load="1awi" size="450" color="white" frame="true" align="right" spinBox="true" | ||
<applet load="1awi" size="450" color="white" frame="true" align="right" spinBox="true" | |||
caption="1awi, resolution 2.2Å" /> | caption="1awi, resolution 2.2Å" /> | ||
'''HUMAN PLATELET PROFILIN COMPLEXED WITH THE L-PRO10 PEPTIDE'''<br /> | '''HUMAN PLATELET PROFILIN COMPLEXED WITH THE L-PRO10 PEPTIDE'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
1AWI is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. | 1AWI is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Known structural/functional Sites: <scene name='pdbsite=PPA:Poly-L-PRO Binding Site'>PPA</scene> and <scene name='pdbsite=PPB:Poly-L-PRO Binding Site'>PPB</scene>. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1AWI OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: profilin]] | [[Category: profilin]] | ||
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Dec 18 14:22:28 2007'' | ||
Revision as of 15:12, 18 December 2007
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HUMAN PLATELET PROFILIN COMPLEXED WITH THE L-PRO10 PEPTIDE
OverviewOverview
Profilin, a ubiquitous low molecular weight (13,000-15,000 M(r)) actin, binding protein, regulates the formation of F-actin structures in vivo, and is localized to specific cellular regions through interaction with, proline-rich sequences. Here we report the 2.2 A X-ray structure of the, complex between human platelet profilin (HPP) and a decamer of L-proline, (L-Pro10). The L-Pro10 peptide adopts a left-handed type II poly-L-proline, helix (PPII) and binds to a highly conserved patch of aromatic amino acids, on the surface of profilin. The peptide and actin binding sites reside on, orthogonal surfaces, and L-Pro10 binding does not result in a, conformational rearrangement of HPP. This structure suggests a mechanism, for the localization of profilin and its actin-related activities to sites, of actin filament assembly in vivo.
About this StructureAbout this Structure
1AWI is a Single protein structure of sequence from Homo sapiens. Known structural/functional Sites: and . Full crystallographic information is available from OCA.
ReferenceReference
Structure of the profilin-poly-L-proline complex involved in morphogenesis and cytoskeletal regulation., Mahoney NM, Janmey PA, Almo SC, Nat Struct Biol. 1997 Nov;4(11):953-60. PMID:9360613
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