ISDA: 1DFN

Deposition Date 1991-01-18

Release Date 1992-07-15

Last Version Date 2024-10-23

Entry Detail

PDB ID:

1DFN

Keywords:

DEFENSIN

Title:

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

Biological Source:

Source Organism(s):

Homo sapiens (Taxon ID: 9606)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.90 Å

R-Value Observed:

0.19

Space Group:

P 21 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:DEFENSIN HNP-3
Chain IDs:A, B
Chain Length:30
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P59666 Pfam ID:PF00323

Primary Citation

Crystal structure of defensin HNP-3, an amphiphilic dimer: mechanisms of membrane permeabilization.

Hill, C.P, Yee, J, Selsted, M.E, Eisenberg, D, Selsted, M.E, Harwig, S.S.L, Ganz, T, Schilling, J.W, Lehrer, R.I, Ganz, T, Selsted, M.E, Szklarek, D, Harwig, S.S.L, Daher, K, Bainton, D.F, Lehrer, R.I.Show

Science 251 1481 1485 (1991)

PMID: 2006422

Abstact

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.

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Primary Citation of related structures

Abstact

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