2fnw

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{{STRUCTURE_2fnw| PDB=2fnw | SCENE= }}
{{STRUCTURE_2fnw| PDB=2fnw | SCENE= }}
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'''Pseudomonas aeruginosa E2Q/H83Q/M109H-azurin RE(PHEN)(CO)3'''
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===Pseudomonas aeruginosa E2Q/H83Q/M109H-azurin RE(PHEN)(CO)3===
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==Overview==
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The triplet metal-to-ligand charge transfer ((3)MLCT) dynamics of two structurally characterized Re(I)(CO)(3)(phen)(HisX)-modified (phen = 1,10-phenanthroline; X = 83, 109) Pseudomonas aeruginosa azurins have been investigated by picosecond time-resolved infrared (TRIR) spectroscopy in aqueous (D(2)O) solution. The (3)MLCT relaxation dynamics exhibited by the two Re(I)-azurins are very different from those of the sensitizer [Re(I)(CO)(3)(phen)(im)](+) (im = imidazole). Whereas the Re(I)(CO)(3) intramolecular vibrational relaxation in Re(I)(CO)(3)(phen)(HisX)Az (4 ps) is similar to that of [Re(I)(CO)(3)(phen)(im)](+) (2 ps), the medium relaxation is much slower ( approximately 250 vs 9.5 ps); the 250-ps relaxation is attributable to reorientation of D(2)O molecules as well as structural reorganization of the rhenium chromophore and nearby polar amino acids in each of the modified proteins.
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{{ABSTRACT_PUBMED_16569013}}
==About this Structure==
==About this Structure==
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[[Category: Infrared spectroscopy]]
[[Category: Infrared spectroscopy]]
[[Category: Rhenium]]
[[Category: Rhenium]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 04:06:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 20:03:08 2008''

Revision as of 17:03, 28 July 2008

Image:2fnw.png

Template:STRUCTURE 2fnw

Pseudomonas aeruginosa E2Q/H83Q/M109H-azurin RE(PHEN)(CO)3

Template:ABSTRACT PUBMED 16569013

About this Structure

2FNW is a Single protein structure of sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA.

Reference

Excited-state dynamics of structurally characterized [ReI(CO)3(phen)(HisX)]+ (X = 83, 109) Pseudomonas aeruginosa azurins in aqueous solution., Blanco-Rodriguez AM, Busby M, Gradinaru C, Crane BR, Di Bilio AJ, Matousek P, Towrie M, Leigh BS, Richards JH, Vlcek A Jr, Gray HB, J Am Chem Soc. 2006 Apr 5;128(13):4365-70. PMID:16569013

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