1cll
From Proteopedia
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| - | [[Image:1cll.gif|left|200px]] | + | [[Image:1cll.gif|left|200px]] |
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| - | '''CALMODULIN STRUCTURE REFINED AT 1.7 ANGSTROMS RESOLUTION''' | + | {{Structure |
| + | |PDB= 1cll |SIZE=350|CAPTION= <scene name='initialview01'>1cll</scene>, resolution 1.7Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=EOH:ETHANOL'>EOH</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''CALMODULIN STRUCTURE REFINED AT 1.7 ANGSTROMS RESOLUTION''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1CLL is a [ | + | 1CLL is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. The following page contains interesting information on the relation of 1CLL with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb44_1.html Calmodulin]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CLL OCA]. |
==Reference== | ==Reference== | ||
| - | Calmodulin structure refined at 1.7 A resolution., Chattopadhyaya R, Meador WE, Means AR, Quiocho FA, J Mol Biol. 1992 Dec 20;228(4):1177-92. PMID:[http:// | + | Calmodulin structure refined at 1.7 A resolution., Chattopadhyaya R, Meador WE, Means AR, Quiocho FA, J Mol Biol. 1992 Dec 20;228(4):1177-92. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1474585 1474585] |
[[Category: Calmodulin]] | [[Category: Calmodulin]] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
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[[Category: calcium-binding protein]] | [[Category: calcium-binding protein]] | ||
| - | ''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 10:25:53 2008'' |
Revision as of 08:25, 20 March 2008
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| , resolution 1.7Å | |||||||
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| Ligands: | and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CALMODULIN STRUCTURE REFINED AT 1.7 ANGSTROMS RESOLUTION
Contents |
Overview
We have determined and refined the crystal structure of a recombinant calmodulin at 1.7 A resolution. The structure was determined by molecular replacement, using the 2.2 A published native bovine brain structure as the starting model. The final crystallographic R-factor, using 14,469 reflections in the 10.0 to 1.7 A range with structure factors exceeding 0.5 sigma, is 0.216. Bond lengths and bond angle distances have root-mean-square deviations from ideal values of 0.009 A and 0.032 A, respectively. The final model consists of 1279 non-hydrogen atoms, including four calcium ions, 1130 protein atoms, including three Asp118 side-chain atoms in double conformation, 139 water molecules and one ethanol molecule. The electron densities for residues 1 to 4 and 148 of calmodulin are poorly defined, and not included in our model, except for main-chain atoms of residue 4. The calmodulin structure from our crystals is very similar to the earlier 2.2 A structure described by Babu and coworkers with a root-mean-square deviation of 0.36 A. Calmodulin remains a dumb-bell-shaped molecule, with similar lobes and connected by a central alpha-helix. Each lobe contains three alpha-helices and two Ca2+ binding EF hand loops, with a short antiparallel beta-sheet between adjacent EF hand loops and one non-EF hand loop. There are some differences in the structure of the central helix. The crystal packing is extensively studied, and facile crystal growth along the z-axis of the triclinic crystals is explained. Herein, we describe hydrogen bonding in the various secondary structure elements and hydration of calmodulin.
Disease
Known diseases associated with this structure: Cavernous malformations of CNS and retina OMIM:[604214], Cerebral cavernous malformations-1 OMIM:[604214], Hyperkeratotic cutaneous capillary-venous malformations associated with cerebral capillary malformations OMIM:[604214], Leukemia, acute T-cell lymphoblastic OMIM:[603025], Leukemia, acute myeloid OMIM:[603025]
About this Structure
1CLL is a Single protein structure of sequence from Homo sapiens. The following page contains interesting information on the relation of 1CLL with [Calmodulin]. Full crystallographic information is available from OCA.
Reference
Calmodulin structure refined at 1.7 A resolution., Chattopadhyaya R, Meador WE, Means AR, Quiocho FA, J Mol Biol. 1992 Dec 20;228(4):1177-92. PMID:1474585
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