Recombinant Human Ran-specific GTPase-activating protein (RANBP1)

Uniprot Id

P43487

Target Species

Human

Target Name

RANBP1

Target Full Name

Ran-specific GTPase-activating protein

Target Function

Plays a role in RAN-dependent nucleocytoplasmic transport. Alleviates the TNPO1-dependent inhibition of RAN GTPase activity and mediates the dissociation of RAN from proteins involved in transport into the nucleus. Induces a conformation change in the complex formed by XPO1 and RAN that triggers the release of the nuclear export signal of cargo proteins. Promotes the disassembly of the complex formed by RAN and importin beta. Promotes dissociation of RAN from a complex with KPNA2 and CSE1L. Required for normal mitotic spindle assembly and normal progress through mitosis via its effect on RAN. Does not increase the RAN GTPase activity by itself, but increases GTP hydrolysis mediated by RANGAP1. Inhibits RCC1-dependent exchange of RAN-bound GDP by GTP.

Target Protein Families

RANBP1 family

Target Synonyms

HTF9A; RAN binding protein 1; Ran specific GTPase activating protein; Ran-binding protein 1; Ran-specific GTPase-activating protein; RANBP1; RANG_HUMAN

Target Background

This gene encodes a protein that forms a complex with Ras-related nuclear protein (Ran) and metabolizes guanoside triphosphate (GTP). This complex participates in the regulation of the cell cycle by controlling transport of proteins and nucleic acids into the nucleus. There are multiple pseudogenes for this gene on chromosomes 9, 12, 17, and X. Alternative splicing results in multiple transcript variants.