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| | ==Solution structure of cryptdin-4, the most potent alpha-defensin from mouse Paneth cells== | | ==Solution structure of cryptdin-4, the most potent alpha-defensin from mouse Paneth cells== |
| - | <StructureSection load='1tv0' size='340' side='right'caption='[[1tv0]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='1tv0' size='340' side='right'caption='[[1tv0]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1tv0]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TV0 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1TV0 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1tv0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TV0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TV0 FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">DEFCR4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 20 models</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1tv0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tv0 OCA], [http://pdbe.org/1tv0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1tv0 RCSB], [http://www.ebi.ac.uk/pdbsum/1tv0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1tv0 ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1tv0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tv0 OCA], [https://pdbe.org/1tv0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tv0 RCSB], [https://www.ebi.ac.uk/pdbsum/1tv0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tv0 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/DEFA4_MOUSE DEFA4_MOUSE] Probably contributes to the antimicrobial barrier function of the small bowel mucosa. |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Lk3 transgenic mice]] | + | [[Category: Mus musculus]] |
| - | [[Category: Hunter, H N]] | + | [[Category: Hunter HN]] |
| - | [[Category: Jing, W]] | + | [[Category: Jing W]] |
| - | [[Category: Ouellette, A J]] | + | [[Category: Ouellette AJ]] |
| - | [[Category: Tanabe, H]] | + | [[Category: Tanabe H]] |
| - | [[Category: Vogel, H J]] | + | [[Category: Vogel HJ]] |
| - | [[Category: Antimicrobial protein]]
| + | |
| - | [[Category: Beta hairpin]]
| + | |
| - | [[Category: Beta sheet]]
| + | |
| Structural highlights
Function
DEFA4_MOUSE Probably contributes to the antimicrobial barrier function of the small bowel mucosa.
Publication Abstract from PubMed
Mammalian defensins are abundant antimicrobial peptides that contribute to host defense. They are characterized by several conserved amino acids, including six invariant cysteine residues which form three intramolecular disulfide bonds and stabilize the tertiary structure. Cryptdin-4 (Crp4), a mouse alpha-defensin with potent in vitro bactericidal activity, has a primary structure distinct from all known alpha-defensins in that its polypeptide backbone uniquely lacks three residues between Cys(IV) and Cys(V). NMR diffusion experiments showed that Crp4 is monomeric in solution, and its three-dimensional solution structure, determined by two-dimensional proton NMR, consists of a triple-stranded antiparallel beta-sheet with the beta-strands joined to each other by a series of tight turns and a beta-hairpin. However, the overall beta-sheet content in Crp4 is lower than that of other alpha-defensin structures, while the shape and orientation of the Crp4 beta-hairpin also differ from those of other alpha-defensin structures. These structural characteristics combined with the high overall cationicity of Crp4 may contribute to its broad bactericidal spectrum and membrane disruptive activity.
Solution structure of cryptdin-4, a mouse paneth cell alpha-defensin.,Jing W, Hunter HN, Tanabe H, Ouellette AJ, Vogel HJ Biochemistry. 2004 Dec 21;43(50):15759-66. PMID:15595831[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Jing W, Hunter HN, Tanabe H, Ouellette AJ, Vogel HJ. Solution structure of cryptdin-4, a mouse paneth cell alpha-defensin. Biochemistry. 2004 Dec 21;43(50):15759-66. PMID:15595831 doi:10.1021/bi048645p
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