1d9p: Difference between revisions
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1d9p]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Hyalophora_cecropia Hyalophora cecropia]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D9P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D9P FirstGlance]. <br> | <table><tr><td colspan='2'>[[1d9p]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Hyalophora_cecropia Hyalophora cecropia]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D9P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D9P FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr> | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr> | ||
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1d9j|1d9j]], [[1d9l|1d9l]], [[1d9m|1d9m]], [[1d9o|1d9o]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1d9j|1d9j]], [[1d9l|1d9l]], [[1d9m|1d9m]], [[1d9o|1d9o]]</td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1d9p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d9p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1d9p RCSB], [http://www.ebi.ac.uk/pdbsum/1d9p PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1d9p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d9p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1d9p RCSB], [http://www.ebi.ac.uk/pdbsum/1d9p PDBsum]</span></td></tr> | ||
<table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 20: | Line 20: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Hyalophora cecropia]] | [[Category: Hyalophora cecropia]] | ||
[[Category: Kim, Y | [[Category: Kim, Y]] | ||
[[Category: Oh, D | [[Category: Oh, D]] | ||
[[Category: Helix-hinge-helix]] | [[Category: Helix-hinge-helix]] | ||
[[Category: Membrane protein]] | [[Category: Membrane protein]] | ||
Revision as of 02:42, 23 December 2014
SOLUTION STRUCTURE OF CECROPIN A(1-8)-MAGAININ 2(1-12) HYBRID PEPTIDE ANALOGUE(P4)SOLUTION STRUCTURE OF CECROPIN A(1-8)-MAGAININ 2(1-12) HYBRID PEPTIDE ANALOGUE(P4)
Structural highlights
Publication Abstract from PubMedIn order to elucidate the structure-antibiotic activity relationships of the peptides, the three-dimensional structures of two hybrid peptides, CA(1-8) - MA(1-12) and CA(1-8) - ME(1-12) in trifluoroethanol-containing aqueous solution were investigated by NMR spectroscopy. Both CA(1-8) - MA(1-12) and CA(1-8) - ME(1-12) have strong antibacterial activity but only CA(1-8) - ME(1-12) has hemolytic activity against human erythrocytes. CA(1-8) - MA(1-12) has a hydrophobic 310-helix of only two turns combined with one short helix in the N-terminus with a flexible hinge section in between. CA(1-8) - MA(1-12) has a severely bent structure in the middle of the peptide. These structural features as well as the low hydrophobicity of CA(1-8) - MA(1-12) seem to be crucial for the selective lysis against the membrane of prokaryotic cells. CA(1-8) - ME(1-12) has an alpha-helical structure of about three turns in the melittin domain and a flexible structure with one turn in the cecropin domain connected with a flexible hinge section in between, and these might be the structural features required for membrane disruption against prokaryotic and eukaryotic cells. The central hinge region (Gly9-Ile10-Gly11) in an amphipathic antibacterial peptide is considered to play an important role in providing the conformational flexibility required for ion channel formation of the C-terminal hydrophobic alpha-helix on cell membrane. NMR structural characterization of cecropin A(1-8) - magainin 2(1-12) and cecropin A (1-8) - melittin (1-12) hybrid peptides.,Oh D, Shin SY, Kang JH, Hahm KS, Kim KL, Kim Y J Pept Res. 1999 May;53(5):578-89. PMID:10424354[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
| ||||||||||||||||||