Description
Product Characteristics:
Ran GTPase plays important roles in nucleocytoplasmic transport in interphase and in both spindle formation and nuclear envelope (NE) assembly during mitosis. The latter functions rely on the presence of high local concentrations of GTP bound Ran near mitotic chromatin. RanGTP localization has been proposed to result from the association of Ran's GDP/GTP exchange factor, RCC1, with chromatin, but Ran is shown here to bind directly to chromatin in two modes, either dependent or independent of RCC1, and, where bound, to increase the affinity of chromatin for NE membranes.
Subcellular location: Cytoplasm, Nucleus
Synonyms: Cell cycle regulatory protein, CHC 1, CHC1, Chromosome condensation 1, Chromosome condensation protein 1, Guanine nucleotide releasing protein, Ran GEF, RanGEF, RCC 1, RCC1 I, Regulator of chromosome condensation 1, Regulator of chromosome condensation, SHEP1.
Target Information: Guanine-nucleotide releasing factor that promotes the exchange of Ran-bound GDP by GTP. Involved in the regulation of onset of chromosome condensation in the S phase. Binds both to the nucleosomes and double-stranded DNA. RCC1-Ran complex (together with other proteins) acts as a component of a signal transmission pathway that detects unreplicated DNA. Plays a key role in nucleo- cytoplasmic transport, mitosis and nuclear-envelope assembly