1d1b: Difference between revisions

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[[Image:1d1b.jpg|left|200px]]
{{Seed}}
[[Image:1d1b.png|left|200px]]


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{{STRUCTURE_1d1b|  PDB=1d1b  |  SCENE=  }}  
{{STRUCTURE_1d1b|  PDB=1d1b  |  SCENE=  }}  


'''DICTYOSTELIUM MYOSIN S1DC (MOTOR DOMAIN FRAGMENT) COMPLEXED WITH O,P-DINITROPHENYL AMINOPROPYLDIPHOSPHATE BERYLLIUM TRIFLUORIDE.'''
===DICTYOSTELIUM MYOSIN S1DC (MOTOR DOMAIN FRAGMENT) COMPLEXED WITH O,P-DINITROPHENYL AMINOPROPYLDIPHOSPHATE BERYLLIUM TRIFLUORIDE.===




==Overview==
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The three-dimensional structures of the truncated myosin head from Dictyostelium discoideum myosin II complexed with dinitrophenylaminoethyl-, dinitrophenylaminopropyl-, o-nitrophenylaminoethyl-, m-nitrophenylaminoethyl-, p-nitrophenylaminoethyl-, and o-nitrophenyl-N-methyl-aminoethyl-diphosphate.beryllium fluoride have been determined to better than 2.3-A resolution. The structure of the protein and nucleotide binding pocket in these complexes is very similar to that of S1dC.ADP.BeF(x) (Fisher, A. J., Smith, C. A., Thoden, J., Smith, R., Sutoh, K., Holden, H. M., and Rayment, I. (1995) Biochemistry 34, 8960-8972). The position of the triphosphate-like moiety is essentially identical in all complexes. Furthermore, the alkyl-amino group plays the same role as the ribose by linking the triphosphate to the adenine binding pocket; however, none of the phenyl groups lie in the same position as adenine in S1dC.MgADP.BeF(x), even though several of these nucleotide analogs are functionally equivalent to ATP. Rather the former location of adenine is occupied by water in the nanolog complexes, and the phenyl groups are organized in a manner that attempts to optimize their hydrogen bonding interactions with this constellation of solvent molecules. A comparison of the kinetic and structural properties of the nanologs relative to ATP suggests that the ability of a substrate to sustain tension and to generate movement correlates with a well defined interaction with the active site water structure observed in S1dC.MgADP.BeF(x).
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{{ABSTRACT_PUBMED_10617631}}


==About this Structure==
==About this Structure==
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[[Category: Myosin]]
[[Category: Myosin]]
[[Category: Nanolog]]
[[Category: Nanolog]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 13:20:18 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 22:02:50 2008''

Revision as of 19:03, 30 June 2008

File:1d1b.png

Template:STRUCTURE 1d1b

DICTYOSTELIUM MYOSIN S1DC (MOTOR DOMAIN FRAGMENT) COMPLEXED WITH O,P-DINITROPHENYL AMINOPROPYLDIPHOSPHATE BERYLLIUM TRIFLUORIDE.

Template:ABSTRACT PUBMED 10617631

About this Structure

1D1B is a Single protein structure of sequence from Dictyostelium discoideum. Full crystallographic information is available from OCA.

Reference

X-ray structures of the Dictyostelium discoideum myosin motor domain with six non-nucleotide analogs., Gulick AM, Bauer CB, Thoden JB, Pate E, Yount RG, Rayment I, J Biol Chem. 2000 Jan 7;275(1):398-408. PMID:10617631

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