Bell-shaped dependence of the rate of ultrafast photoinduced electron transfer from aromatic amino acids to the excited flavin on the donor–acceptor distance in FMN binding proteins

2014 ◽  
Vol 1030 ◽  
pp. 9-16 ◽  
Author(s):  
Nadtanet Nunthaboot ◽  
Kiattisak Lugsanangarm ◽  
Somsak Pianwanit ◽  
Sirirat Kokpol ◽  
Fumio Tanaka ◽  
...  
Keyword(s):  
Amino Acids ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Binding Proteins ◽  
Aromatic Amino Acids ◽  
Donor Acceptor

Classification of the mechanisms of photoinduced electron transfer from aromatic amino acids to the excited flavins in flavoproteins

2015 ◽  
Vol 17 (26) ◽  
pp. 16813-16825 ◽  
Author(s):  
Fumio Tanaka ◽  
Kiattisak Lugsanangarm ◽  
Nadtanet Nunthaboot ◽  
Arthit Nueangaudom ◽  
Somsak Pianwanit ◽  
...  
Keyword(s):  
Amino Acids ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Aromatic Amino Acids ◽  
Wavelength Dependence ◽  
Emission Wavelength ◽  
Donor Acceptor ◽  
The Relationship

Emission wavelength-dependence of the relationship between logarithmic ET rate vs. donor–acceptor distance in pyranose 2-oxidase.

scholarly journals Theoretical Analyses of Photoinduced Electron Transfer from Aromatic Amino Acids to the Excited Flavins in Some Flavoproteins

10.5772/38078 ◽  
2012 ◽  
Author(s):  
Kiattisak Lugsanangarm ◽  
Nadtanet Nunthaboot ◽  
Somsak Pianwanit ◽  
Sirirat Kokpol ◽  
Fumio Tanak
Keyword(s):  
Amino Acids ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Aromatic Amino Acids ◽  
Theoretical Analyses

Mechanisms of photoinduced electron transfer reactions of lappaconitine with aromatic amino acids. Time-resolved CIDNP study

2005 ◽  
Vol 3 (5) ◽  
pp. 881 ◽  
Author(s):  
Nikolai E. Polyakov ◽  
Vladimir K. Khan ◽  
Marc B. Taraban ◽  
Tatyana V. Leshina ◽  
Olga A. Luzina ◽  
...  
Keyword(s):  
Amino Acids ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Aromatic Amino Acids ◽  
Transfer Reactions ◽  
Time Resolved ◽  
Electron Transfer Reactions

Photoelectrochemical properties of supramolecular composites of an anionic zinc chlorin and Li+@C60 on SnO2

2014 ◽  
Vol 18 (10n11) ◽  
pp. 982-990 ◽  
Author(s):  
Kei Ohkubo ◽  
Yuki Kawashima ◽  
Kentaro Mase ◽  
Hayato Sakai ◽  
Taku Hasobe ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Photovoltaic Cells ◽  
Lithium Ion ◽  
Transparent Electrode ◽  
Supramolecular Complex ◽  
Photoelectrochemical Properties ◽  
Triplet Excited State ◽  
Optically Transparent ◽  
Donor Acceptor

An electron donor–acceptor supramolecular complex was formed between an anionic zinc chlorin carboxylate ( ZnCh -) and lithium-ion-encapsulated [60]fullerene ( Li +@ C 60) by an electrostatic interaction in benzonitrile ( PhCN ). Photoinduced electron transfer in the supramolecular complex of ZnCh -/ Li +@ C 60 resulted in the formation of the charge-separated state via electron transfer from the triplet excited state of ZnCh - to Li +@ C 60. We report herein photovoltaic cells using ZnCh -/ Li +@ C 60 nanoclusters, which are assembled on the optically transparent electrode (OTE) of nanostructured SnO 2 (OTE/ SnO 2). The photoelectrochemical behavior of the nanostructured SnO 2 film of supramolecular nanoclusters of ZnCh - and Li +@ C 60 denoted as OTE/ SnO 2/( ZnCh -/ Li +@ C 60)n is significantly higher than the single component films of ZnCh - or Li +@ C 60 clusters, denoted as OTE/ SnO 2/( ZnCh -)n or OTE/ SnO 2/( Li +@ C 60)n.

Calcium-binding proteins in a vorticellid contractile organelle

1975 ◽  
Vol 19 (1) ◽  
pp. 203-213
Author(s):  
W.B. Amos ◽  
L.M. Routledge ◽  
F.F. Yew
Keyword(s):  
Amino Acids ◽  
Molecular Weight ◽  
Calcium Binding ◽  
Binding Proteins ◽  
Sodium Dodecyl ◽  
Aromatic Amino Acids ◽  
Calcium Binding Proteins ◽  
Polyacrylamide Gels ◽  
Protein Species ◽  
Low Concentrations

The proteins of the contractile spasmoneme of Zoothamnium have been examined for comparison with other motile systems. Though capable of calcium-induced contraction, glycerinated preparations of the spasmoneme contain neither actin nor tubulin at levels that can be detected in polyacrylamide gels. Sixty per cent of the protein in sodium dodecyl sulphate gels migrates in a band at a molecular weight of approximately 20,000, consisting largely of 2 similar protein species which are here given the name of spasmins. The amino acid composition of 2 spasmin fractions has been determined by a fluorimetric method. They are rich in Asx, Glx and serine, but have few aromatic amino acids and no cystine or methionine. In calcium-buffered polyacrylamide gels, it was observed that a reduction in the electrophoretic mobility of the spasmins was induced specifically by calcium (but not magnesium) at the same low concentrations as induce contraction. This indicates that the spasmins are calcium-binding proteins which may be involved directly in the calcium-induced contraction of the spasmoneme.

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