1c01

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{{STRUCTURE_1c01| PDB=1c01 | SCENE= }}
{{STRUCTURE_1c01| PDB=1c01 | SCENE= }}
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'''SOLUTION STRUCTURE OF MIAMP1, A PLANT ANTIMICROBIAL PROTEIN'''
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===SOLUTION STRUCTURE OF MIAMP1, A PLANT ANTIMICROBIAL PROTEIN===
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==Overview==
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MiAMP1 is a recently discovered 76 amino acid residue, highly basic protein from the nut kernel of Macadamia integrifolia which possesses no sequence homology to any known protein and inhibits the growth of several microbial plant pathogens in vitro while having no effect on mammalian or plant cells. It is considered to be a potentially useful tool for the genetic engineering of disease resistance in transgenic crop plants and for the design of new fungicides.The three-dimensional structure of MiAMP1 was determined through homonuclear and heteronuclear ((15)N) 2D NMR spectroscopy and subsequent simulated annealing calculations with the ultimate aim of understanding the structure-activity relationships of the protein. MiAMP1 is made up of eight beta-strands which are arranged in two Greek key motifs. These Greek key motifs associate to form a Greek key beta-barrel.This structure is unique amongst plant antimicrobial proteins and forms a new class which we term the beta-barrelins. Interestingly, the structure of MiAMP1 bears remarkable similarity to a yeast killer toxin from Williopsis mrakii. This toxin acts by inhibiting beta-glucan synthesis and thereby cell wall construction in sensitive strains of yeast. The structural similarity of MiAMP1 and WmKT, which originate from plant and fungal phyla respectively, may reflect a similar mode of action.
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(as it appears on PubMed at http://www.pubmed.gov), where 10543955 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10543955}}
==About this Structure==
==About this Structure==
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1C01 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Macadamia_integrifolia Macadamia integrifolia]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C01 OCA].
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1C01 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Macadamia_integrifolia Macadamia integrifolia]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C01 OCA].
==Reference==
==Reference==
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[[Category: Beta-barrel]]
[[Category: Beta-barrel]]
[[Category: Greek key]]
[[Category: Greek key]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 20:01:20 2008''

Revision as of 17:01, 30 June 2008

Image:1c01.png

Template:STRUCTURE 1c01

SOLUTION STRUCTURE OF MIAMP1, A PLANT ANTIMICROBIAL PROTEIN

Template:ABSTRACT PUBMED 10543955

About this Structure

1C01 is a Single protein structure of sequence from Macadamia integrifolia. Full experimental information is available from OCA.

Reference

MiAMP1, a novel protein from Macadamia integrifolia adopts a Greek key beta-barrel fold unique amongst plant antimicrobial proteins., McManus AM, Nielsen KJ, Marcus JP, Harrison SJ, Green JL, Manners JM, Craik DJ, J Mol Biol. 1999 Oct 29;293(3):629-38. PMID:10543955

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