1y58

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{{Seed}}
 
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[[Image:1y58.png|left|200px]]
 
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==The structure of a lactoferricinB derivative bound to micelles==
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The line below this paragraph, containing "STRUCTURE_1y58", creates the "Structure Box" on the page.
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<StructureSection load='1y58' size='340' side='right'caption='[[1y58]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1y58]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y58 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Y58 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr>
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{{STRUCTURE_1y58| PDB=1y58 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1y58 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1y58 OCA], [https://pdbe.org/1y58 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1y58 RCSB], [https://www.ebi.ac.uk/pdbsum/1y58 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1y58 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TRFL_BOVIN TRFL_BOVIN] Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate.<ref>PMID:8980754</ref> <ref>PMID:15222473</ref> Lactotransferrin has antimicrobial activity. The most effective inhibitory activity was seen against E.coli and P.aeruginosa.<ref>PMID:8980754</ref> <ref>PMID:15222473</ref> Lactoferricin B is an antimicrobial peptide. Inhibits the growth of Gram-negative and Gram-positive bacteria.<ref>PMID:8980754</ref> <ref>PMID:15222473</ref> The lactotransferrin transferrin-like domain 1 functions as a serine protease of the peptidase S60 family that cuts arginine rich regions. This function contributes to the antimicrobial activity.<ref>PMID:8980754</ref> <ref>PMID:15222473</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The powerful antimicrobial properties of bovine lactoferricin (LfcinB) make it attractive for the development of new antimicrobial agents. An 11-residue linear peptide portion of LfcinB has been reported to have similar antimicrobial activity to lactoferricin itself, but with lower hemolytic activity. The membrane-binding and membrane-perturbing properties of this peptide were studied together with an amidated synthetic version with an added disulfide bond, which was designed to confer increased stability and possibly activity. The antimicrobial and cytotoxic properties of the peptides were measured against Staphylococcus aureus and Escherichia coli and by hemolysis assays. The peptides were also tested in an anti-cancer assay against neuroblastoma cell lines. Vesicle disruption caused by these LfcinB derivatives was studied using the fluorescent reporter molecule calcein. The extent of burial of the two Trp residues in membrane mimetic environments were quantitated by fluorescence. Finally, the solution NMR structures of the peptides bound to SDS micelles were determined to provide insight into their membrane bound state. The cyclic peptide was found to have greater antimicrobial potency than its linear counterpart. Consistent with this property, the two Trp residues of the modified peptide were suggested to be embedded deeper into the membrane. Although both peptides adopt an amphipathic structure without any regular alpha-helical or beta-sheet conformation, the 3D-structures revealed a clearer partitioning of the cationic and hydrophobic faces for the cyclic peptide.
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===The structure of a lactoferricinB derivative bound to micelles===
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Structural studies and model membrane interactions of two peptides derived from bovine lactoferricin.,Nguyen LT, Schibli DJ, Vogel HJ J Pept Sci. 2005 Jul;11(7):379-89. PMID:15635665<ref>PMID:15635665</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1y58" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 15635665 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_15635665}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Bos taurus]]
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Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y58 OCA].
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[[Category: Large Structures]]
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[[Category: Nguyen LT]]
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==Reference==
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[[Category: Schibli DJ]]
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Structural studies and model membrane interactions of two peptides derived from bovine lactoferricin., Nguyen LT, Schibli DJ, Vogel HJ, J Pept Sci. 2005 Jul;11(7):379-89. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15635665 15635665]
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[[Category: Vogel HJ]]
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[[Category: Nguyen, L T.]]
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[[Category: Schibli, D J.]]
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[[Category: Vogel, H J.]]
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[[Category: Amidated c-terminus]]
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[[Category: Disulfide-linked]]
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[[Category: Micelle-bound]]
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[[Category: Peptide]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 12:51:56 2008''
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Current revision

The structure of a lactoferricinB derivative bound to micelles

PDB ID 1y58

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