Effects of in vivo UVB irradiation and PUVA treatment on the ADP-ribosylation of GTP-binding proteins in pig epidermis

1990 ◽  
Vol 1 (5) ◽  
pp. 396
Author(s):  
Masato Tsutsui ◽  
Yoshio Hashimoto ◽  
Hajime Iizuka
Keyword(s):  
Binding Proteins ◽  
Uvb Irradiation ◽  
Adp Ribosylation ◽  
Gtp Binding Proteins ◽  
Gtp Binding ◽  
Puva Treatment

scholarly journals Human ADP-ribosylation factors. A functionally conserved family of GTP-binding proteins

1991 ◽  
Vol 266 (4) ◽  
pp. 2606-2614 ◽  
Author(s):  
R A Kahn ◽  
F G Kern ◽  
J Clark ◽  
E P Gelmann ◽  
C Rulka
Keyword(s):  
Binding Proteins ◽  
Adp Ribosylation ◽  
Gtp Binding Proteins ◽  
Gtp Binding

scholarly journals GTP-binding proteins of the Rho/Rac family: regulation, effectors and functions in vivo

BioEssays ◽  
2007 ◽  
Vol 29 (4) ◽  
pp. 356-370 ◽  
Author(s):  
Xosé R. Bustelo ◽  
Vincent Sauzeau ◽  
Inmaculada M. Berenjeno
Keyword(s):  
Binding Proteins ◽  
Gtp Binding Proteins ◽  
Gtp Binding ◽  
Family Regulation

scholarly journals The Biochemistry and Physiology of Metallic Fluoride: Action, Mechanism, and Implications

2003 ◽  
Vol 14 (2) ◽  
pp. 100-114 ◽  
Author(s):  
Liang Li
Keyword(s):  
Binding Proteins ◽  
Phosphoryl Transfer ◽  
Oral Diseases ◽  
Bone Biology ◽  
Gtp Binding Proteins ◽  
Gtpase Activating Proteins ◽  
Protein Activator ◽  
Gtp Binding

Fluoride is a well-known G protein activator. Activation of heterotrimeric GTP-binding proteins by fluoride requires trace amounts of Al3+ or Be2+ ions. AlFx mimics a γ-phosphate at its transition state in a G α protein and is therefore able to inhibit its GTPase activity. AlFx also forms complexes with small GTP-binding proteins in the presence of their GTPase-activating proteins (GAP). As phosphate analogs, AlFx or BeFx affect the activity of a variety of phosphoryl transfer enzymes. Most of these enzymes are fundamentally important in cell signal transduction or energy metabolism. Al3+ and F- tend to form stable complexes in aqueous solution. The exact structure and concentration of AlFx depend on the pH and the amount of F- and Al3+ in the solution. Humans are exposed to both F and Al. It is possible that Al-F complexes may be formed in vivo, or formed in vitro prior to their intake by humans. Al-F complexes may play physiological or pathological roles in bone biology, fluorosis, neurotoxicity, and oral diseases such as dental caries and periodontal disease. The aim of this review is to discuss the basic chemical, biochemical, and toxicological properties of metallic fluoride, to explore its potential physiological and clinical implications.

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