Defensin

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<StructureSection load='2pm4' size='350' side='right' caption='Human α-defensin 1 (PDB entry [[2pm4]])' scene=''>
<StructureSection load='2pm4' size='350' side='right' caption='Human α-defensin 1 (PDB entry [[2pm4]])' scene=''>
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__TOC__
== Function ==
== Function ==
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'''Defensins''' (DEF) are small cationic defense proteins active against bacteria, fungi and viruses. DEF contains 6-8 conserved cysteine residues. DEF binds to microbial cell membrane forming pores and thus allowing outflow of essential nutrients.<ref>PMID:11742345</ref> For details on plant DEF see [[Plant defensin]].
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'''Defensins''' (DEF) are small cationic defense proteins active against bacteria, fungi and viruses. DEF are found in cells of the immune system. DEF contains 6-8 conserved cysteine residues. DEF binds to microbial cell membrane forming pores and thus allowing outflow of essential nutrients thus killing them.<ref>PMID:8528769</ref> For details on plant DEF see [[Plant defensin]].
== Relevance ==
== Relevance ==
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There is increase in α-DEF in chronic inflammations and several cancers.
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There is increase in α-DEF in chronic inflammations and several cancers. DEF-mimetics are developed as antibiotics.
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== Disease ==
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Overexpression of α-defensin is seen in chronic inflammation, several cancers and in T-cells of schizophrenia patients.
</StructureSection>
</StructureSection>
==3D structures of defensin==
==3D structures of defensin==

Revision as of 10:02, 22 December 2015

Human α-defensin 1 (PDB entry 2pm4)

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3D structures of defensin

Updated on 22-December-2015

References

  1. White SH, Wimley WC, Selsted ME. Structure, function, and membrane integration of defensins. Curr Opin Struct Biol. 1995 Aug;5(4):521-7. PMID:8528769

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