1br2
From Proteopedia
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- | [[Image:1br2.gif|left|200px]] | + | [[Image:1br2.gif|left|200px]] |
- | + | ||
- | '''SMOOTH MUSCLE MYOSIN MOTOR DOMAIN COMPLEXED WITH MGADP.ALF4''' | + | {{Structure |
+ | |PDB= 1br2 |SIZE=350|CAPTION= <scene name='initialview01'>1br2</scene>, resolution 2.9Å | ||
+ | |SITE= | ||
+ | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ALF:TETRAFLUOROALUMINATE+ION'>ALF</scene> and <scene name='pdbligand=ADP:ADENOSINE-5'-DIPHOSPHATE'>ADP</scene> | ||
+ | |ACTIVITY= [http://en.wikipedia.org/wiki/Myosin_ATPase Myosin ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.1 3.6.4.1] | ||
+ | |GENE= | ||
+ | }} | ||
+ | |||
+ | '''SMOOTH MUSCLE MYOSIN MOTOR DOMAIN COMPLEXED WITH MGADP.ALF4''' | ||
+ | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
- | 1BR2 is a [ | + | 1BR2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BR2 OCA]. |
==Reference== | ==Reference== | ||
- | Crystal structure of a vertebrate smooth muscle myosin motor domain and its complex with the essential light chain: visualization of the pre-power stroke state., Dominguez R, Freyzon Y, Trybus KM, Cohen C, Cell. 1998 Sep 4;94(5):559-71. PMID:[http:// | + | Crystal structure of a vertebrate smooth muscle myosin motor domain and its complex with the essential light chain: visualization of the pre-power stroke state., Dominguez R, Freyzon Y, Trybus KM, Cohen C, Cell. 1998 Sep 4;94(5):559-71. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9741621 9741621] |
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
[[Category: Myosin ATPase]] | [[Category: Myosin ATPase]] | ||
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[[Category: muscle protein]] | [[Category: muscle 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 10:14:37 2008'' |
Revision as of 08:14, 20 March 2008
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, resolution 2.9Å | |||||||
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Ligands: | , and | ||||||
Activity: | Myosin ATPase, with EC number 3.6.4.1 | ||||||
Coordinates: | save as pdb, mmCIF, xml |
SMOOTH MUSCLE MYOSIN MOTOR DOMAIN COMPLEXED WITH MGADP.ALF4
Overview
The crystal structures of an expressed vertebrate smooth muscle myosin motor domain (MD) and a motor domain-essential light chain (ELC) complex (MDE), both with a transition state analog (MgADP x AIF4-) in the active site, have been determined to 2.9 A and 3.5 A resolution, respectively. The MDE structure with an ATP analog (MgADP x BeFx) was also determined to 3.6 A resolution. In all three structures, a domain of the C-terminal region, the "converter," is rotated approximately 70 degrees from that in nucleotide-free skeletal subfragment 1 (S1). We have found that the MDE-BeFx and MDE-AIF4- structures are almost identical, consistent with the fact that they both bind weakly to actin. A comparison of the lever arm positions in MDE-AIF4- and in nucleotide-free skeletal S1 shows that a potential displacement of approximately 10 nm can be achieved during the power stroke.
About this Structure
1BR2 is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.
Reference
Crystal structure of a vertebrate smooth muscle myosin motor domain and its complex with the essential light chain: visualization of the pre-power stroke state., Dominguez R, Freyzon Y, Trybus KM, Cohen C, Cell. 1998 Sep 4;94(5):559-71. PMID:9741621
Page seeded by OCA on Thu Mar 20 10:14:37 2008
Categories: Gallus gallus | Myosin ATPase | Single protein | Cohen, C. | Dominguez, R. | Trybus, K M. | ADP | ALF | MG | Muscle protein