Protein Information

ID 785
Name GTPase
Synonyms RAC3; RAC3; Ras related C3 botulinum substrate 3; Ras related C3 botulinum toxin substrate 3; p21 Rac3; Ras related C3 botulinum substrate 3s; Ras related C3 botulinum toxin substrate 3s; p21 Rac3s…

Compound Information

ID 1388
Name sodium fluoride
CAS sodium fluoride (NaF)

Reference

PubMed Abstract RScore(About this table)
9016786 Chen HK, Yeh NH: The nucleolar phosphoprotein P130 is a GTPase/ATPase with intrinsic property to form large complexes triggered by F- and Mg2+. Biochem Biophys Res Commun. 1997 Jan 13;230(2):370-5.
We have previously identified a human nucleolar phosphoprotein p130 whose alterations during mitosis are correlated well with the nucleolar disassembly and reassembly. Further studies found that p130 in the cell lysates or after being purified by immunoprecipitation was able to form large complexes triggered by F- and Mg2+. These sodium dodecyl sulfate-insoluble p130 molecules were readily dissociated by adding EDTA to the complexes. It is known that F- and Mg2+ act on many GTPases and ATPases through the induction of a conformational transition mimicking the nucleoside triphosphate-bound state. These initial observations led us to discover that p130 functions as a GTP/ATP binding protein with intrinsic GTPase/ATPase activities. The rate of GTP hydrolysis by purified p130 under our experimental conditions was 0.8 mol/min/mol of p130. These results imply that p130, a novel nucleolar GTPase/ATPase, may switch its conformation in a nucleotide-dependent manner.
2(0,0,0,2)