1dfn

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Image:1dfn.jpg


PDB ID 1dfn

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, resolution 1.9Å
Coordinates: save as pdb, mmCIF, xml



CRYSTAL STRUCTURE OF DEFENSIN HNP-3, AN AMPHIPHILIC DIMER: MECHANISMS OF MEMBRANE PERMEABILIZATION


Contents

Overview

Defensins (molecular weight 3500 to 4000) act in the mammalian immune response by permeabilizing the plasma membranes of a broad spectrum of target organisms, including bacteria, fungi, and enveloped viruses. The high-resolution crystal structure of defensin HNP-3 (1.9 angstrom resolution, R factor 0.19) reveals a dimeric beta sheet that has an architecture very different from other lytic peptides. The dimeric assembly suggests mechanisms by which defensins might bind to and permeabilize the lipid bilayer.

Disease

Known disease associated with this structure: Mental retardation, X-linked, South African type OMIM:[300243]

About this Structure

1DFN is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of defensin HNP-3, an amphiphilic dimer: mechanisms of membrane permeabilization., Hill CP, Yee J, Selsted ME, Eisenberg D, Science. 1991 Mar 22;251(5000):1481-5. PMID:2006422

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