1bts: Difference between revisions
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|PDB= 1bts |SIZE=350|CAPTION= <scene name='initialview01'>1bts</scene> | |PDB= 1bts |SIZE=350|CAPTION= <scene name='initialview01'>1bts</scene> | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene> | |LIGAND= <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY=[[1btt|1BTT]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1bts FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bts OCA], [http://www.ebi.ac.uk/pdbsum/1bts PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1bts RCSB]</span> | |||
}} | }} | ||
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==Overview== | ==Overview== | ||
We have studied the structures of synthetic peptides which correspond to the proposed first and second membrane-spanning segments of the human red cell anion transporter (band 3). The peptides, which were acetylated at their N-termini and amidated at the C-termini, comprise the 20 amino acids of residues 405-424 and 21 amino acids of residues 436-456 of the human band 3 sequence. The solution structures of the peptides in trifluoroethanol were studied by two-dimensional NMR spectroscopy. Characteristic NOEs were observed indicating that the peptides adopted a predominantly alpha-helical structure in trifluoroethanol solution. Dynamical simulated annealing using the program XPLOR was employed for the structure calculations. The amide exchange rates in trifluoroethanol have also been measured and are consistent with an alpha-helical structure for the peptides. | We have studied the structures of synthetic peptides which correspond to the proposed first and second membrane-spanning segments of the human red cell anion transporter (band 3). The peptides, which were acetylated at their N-termini and amidated at the C-termini, comprise the 20 amino acids of residues 405-424 and 21 amino acids of residues 436-456 of the human band 3 sequence. The solution structures of the peptides in trifluoroethanol were studied by two-dimensional NMR spectroscopy. Characteristic NOEs were observed indicating that the peptides adopted a predominantly alpha-helical structure in trifluoroethanol solution. Dynamical simulated annealing using the program XPLOR was employed for the structure calculations. The amide exchange rates in trifluoroethanol have also been measured and are consistent with an alpha-helical structure for the peptides. | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Murray, M.]] | [[Category: Murray, M.]] | ||
[[Category: Tanner, M J.A.]] | [[Category: Tanner, M J.A.]] | ||
[[Category: transmembrane protein]] | [[Category: transmembrane protein]] | ||
''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 19:08:16 2008'' | ||
Revision as of 19:08, 30 March 2008
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| Ligands: | , | ||||||
| Related: | 1BTT
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
THE SOLUTION STRUCTURES OF THE FIRST AND SECOND TRANSMEMBRANE-SPANNING SEGMENTS OF BAND 3
OverviewOverview
We have studied the structures of synthetic peptides which correspond to the proposed first and second membrane-spanning segments of the human red cell anion transporter (band 3). The peptides, which were acetylated at their N-termini and amidated at the C-termini, comprise the 20 amino acids of residues 405-424 and 21 amino acids of residues 436-456 of the human band 3 sequence. The solution structures of the peptides in trifluoroethanol were studied by two-dimensional NMR spectroscopy. Characteristic NOEs were observed indicating that the peptides adopted a predominantly alpha-helical structure in trifluoroethanol solution. Dynamical simulated annealing using the program XPLOR was employed for the structure calculations. The amide exchange rates in trifluoroethanol have also been measured and are consistent with an alpha-helical structure for the peptides.
About this StructureAbout this Structure
1BTS is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
The solution structures of the first and second transmembrane-spanning segments of band 3., Gargaro AR, Bloomberg GB, Dempsey CE, Murray M, Tanner MJ, Eur J Biochem. 1994 Apr 1;221(1):445-54. PMID:8168533
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