Nucleotídeos na Associação de Microtúbulos

Properties of tubulin-assembling nucleotides

Nucleotide analogProperties
ITPhighly promotive
GTPstandard for reactivity of other analogs
GpCpp (GMPCPP)moderately promotive, completely suppresses dynamic instability - microtubules do not depolymerize
caged-GpCpp (caged-GMPCPP)"caged" derivative of GpCpp (GMPCPP) - blocked by a photo-labile group
6-Methylthio-GTPmoderately promotive
8Br-GTPmoderately promotive
dGTPmoderately promotive
mant-GTPslightly inhibitory
XTPslightly inhibitory
6-Thio-GTPhighly inhibitory

Produtos

Selected References

Läppchen et al. (2005) GTP Analogue Inhibits Polymerization and GTPase Activity of the Bacterial Protein FtsZ without Affecting Its Eukaryotic Homologue Tubulin. Biochemistry 44 (21):7879.
Muraoka et al. (1999) Effects of Purinenucleotide Analogues on Microtubule Assembly. Cell Structure and Function 24:305.
Hyman et al. (1992) Role of GTP Hydrolysis in Microtubule Dynamics: Information from a Slowly Hydrolyzable Analogue, GMPCPP. Mol. Biol. of the Cell 3:1155, and references therein.