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1av2
From Proteopedia
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| - | [[Image:1av2.gif|left|200px]] | + | [[Image:1av2.gif|left|200px]] |
| - | + | ||
| - | '''GRAMICIDIN A/CSCL COMPLEX, ACTIVE AS A DIMER''' | + | {{Structure |
| + | |PDB= 1av2 |SIZE=350|CAPTION= <scene name='initialview01'>1av2</scene>, resolution 1.4Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CS:CESIUM+ION'>CS</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=FOR:FORMYL+GROUP'>FOR</scene> and <scene name='pdbligand=MOH:METHANOL'>MOH</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''GRAMICIDIN A/CSCL COMPLEX, ACTIVE AS A DIMER''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1AV2 is a [ | + | 1AV2 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Brevibacillus_brevis Brevibacillus brevis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AV2 OCA]. |
==Reference== | ==Reference== | ||
| - | The conducting form of gramicidin A is a right-handed double-stranded double helix., Burkhart BM, Li N, Langs DA, Pangborn WA, Duax WL, Proc Natl Acad Sci U S A. 1998 Oct 27;95(22):12950-5. PMID:[http:// | + | The conducting form of gramicidin A is a right-handed double-stranded double helix., Burkhart BM, Li N, Langs DA, Pangborn WA, Duax WL, Proc Natl Acad Sci U S A. 1998 Oct 27;95(22):12950-5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9789021 9789021] |
[[Category: Brevibacillus brevis]] | [[Category: Brevibacillus brevis]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: peptide antibiotic]] | [[Category: peptide antibiotic]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:02:37 2008'' |
Revision as of 08:02, 20 March 2008
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| , resolution 1.4Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
GRAMICIDIN A/CSCL COMPLEX, ACTIVE AS A DIMER
Overview
The linear pentadecapeptide antibiotic, gramicidin D, is a naturally occurring product of Bacillus brevis known to form ion channels in synthetic and natural membranes. The x-ray crystal structures of the right-handed double-stranded double-helical dimers (DSDH) reported here agree with 15N-NMR and CD data on the functional gramicidin D channel in lipid bilayers. These structures demonstrate single-file ion transfer through the channels. The results also indicate that previous crystal structure reports of a left-handed double-stranded double-helical dimer in complex with Cs+ and K+ salts may be in error and that our evidence points to the DSDH as the major conformer responsible for ion transport in membranes.
About this Structure
1AV2 is a Protein complex structure of sequences from Brevibacillus brevis. Full crystallographic information is available from OCA.
Reference
The conducting form of gramicidin A is a right-handed double-stranded double helix., Burkhart BM, Li N, Langs DA, Pangborn WA, Duax WL, Proc Natl Acad Sci U S A. 1998 Oct 27;95(22):12950-5. PMID:9789021
Page seeded by OCA on Thu Mar 20 10:02:37 2008
Categories: Brevibacillus brevis | Protein complex | Burkhart, B M. | Duax, W L. | Langs, D A. | Li, N. | CL | CS | FOR | MOH | Ion channel | Peptide antibiotic
