1alz: Difference between revisions
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|PDB= 1alz |SIZE=350|CAPTION= <scene name='initialview01'>1alz</scene>, resolution 0.86Å | |PDB= 1alz |SIZE=350|CAPTION= <scene name='initialview01'>1alz</scene>, resolution 0.86Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=EOH:ETHANOL'>EOH</scene> | |LIGAND= <scene name='pdbligand=DLE:D-LEUCINE'>DLE</scene>, <scene name='pdbligand=DVA:D-VALINE'>DVA</scene>, <scene name='pdbligand=EOH:ETHANOL'>EOH</scene>, <scene name='pdbligand=ETA:ETHANOLAMINE'>ETA</scene>, <scene name='pdbligand=FOR:FORMYL+GROUP'>FOR</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY= | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1alz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1alz OCA], [http://www.ebi.ac.uk/pdbsum/1alz PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1alz RCSB]</span> | |||
}} | }} | ||
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[[Category: Langs, D A.]] | [[Category: Langs, D A.]] | ||
[[Category: Pangborn, W A.]] | [[Category: Pangborn, W A.]] | ||
[[Category: peptide antibiotic]] | [[Category: peptide antibiotic]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 18:43:02 2008'' | ||
Revision as of 18:43, 30 March 2008
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| , resolution 0.86Å | |||||||
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| Ligands: | , , , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
GRAMICIDIN D FROM BACILLUS BREVIS (ETHANOL SOLVATE)
OverviewOverview
The linear pentadecapeptide antibiotic gramicidin D is a heterogeneous mixture of six components. Precise refinements of three-dimensional structures of naturally occurring gramicidin D in crystals obtained from methanol, ethanol, and n-propanol demonstrate the unexpected presence of stable left-handed antiparallel double-helical heterodimers that vary with the crystallization solvent. The side chains of Trp residues in the three structures exhibit sequence-specific patterns of conformational preference. Tyr substitution for Trp at position 11 appears to favor beta ribbon formation and stabilization of the antiparallel double helix that acts as a template for gramicidin folding and nucleation of different crystal forms. The fact that a minor component in a heterogeneous mixture influences aggregation and crystal nucleation has potential applications to other systems in which anomalous behavior is exhibited by aggregation of apparently homogeneous materials, such as the enigmatic behavior of prion proteins.
About this StructureAbout this Structure
1ALZ is a Protein complex structure of sequences from Brevibacillus brevis. This structure supersedes the now removed PDB entry 1GMA. Full crystallographic information is available from OCA.
ReferenceReference
Heterodimer formation and crystal nucleation of gramicidin D., Burkhart BM, Gassman RM, Langs DA, Pangborn WA, Duax WL, Biophys J. 1998 Nov;75(5):2135-46. PMID:9788907
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