Recombinant Human Transportin 1/MIP protein (GST tag N-Terminus)
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Recombinant Human Transportin 1/MIP protein (GST tag N-Terminus) is a Human Fragment protein, in the 25 to 141 aa range, expressed in Wheat germ, suitable for SDS-PAGE, ELISA, WB.
View Alternative Names
KPNB2, MIP1, TRN, TNPO1, Transportin-1, Importin beta-2, Karyopherin beta-2, M9 region interaction protein, MIP
- SDS-PAGE
Unknown
SDS-PAGE - Recombinant Human Transportin 1/MIP protein (GST tag N-Terminus) (AB114514)
ab114514 analysed by 12.5% SDS-PAGE and stained with Coomassie Blue.
Reactivity data
Product details
Sequence info
Properties and storage information
Shipped at conditions
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Aliquoting information
Storage information
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
Transportin 1 is an important component in cellular operation by being part of the nuclear pore complex. It mediates the translocation of proteins across the nuclear envelope. The protein plays a role in not just import but also export of numerous cellular regulators and factors influencing gene expression and cell cycle progression. Being part of such complexes places it at the core of many fundamental cellular processes.
Pathways
The actions of Transportin 1 are integral to nuclear-cytoplasmic transport pathways and the Ran-GTPase pathway. It interacts with the small GTPase Ran which provides the necessary energy for active transport and directionality across the nuclear pore complexes. Additionally Transportin 1 shows functional similarity with importin-alpha which expands its role to include overlap in pathway regulation and cargo specificity further embedding it in complex cellular signaling networks.
Specifications
Form
Liquid
General info
Function
Functions in nuclear protein import as nuclear transport receptor. Serves as receptor for nuclear localization signals (NLS) in cargo substrates (PubMed : 24753571). May mediate docking of the importin/substrate complex to the nuclear pore complex (NPC) through binding to nucleoporin and the complex is subsequently translocated through the pore by an energy requiring, Ran-dependent mechanism. At the nucleoplasmic side of the NPC, Ran binds to the importin, the importin/substrate complex dissociates and importin is re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran. The directionality of nuclear import is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus (By similarity). Involved in nuclear import of M9-containing proteins. In vitro, binds directly to the M9 region of the heterogeneous nuclear ribonucleoproteins (hnRNP), A1 and A2 and mediates their nuclear import. Involved in hnRNP A1/A2 nuclear export. Mediates the nuclear import of ribosomal proteins RPL23A, RPS7 and RPL5 (PubMed : 11682607). In vitro, mediates nuclear import of H2A, H2B, H3 and H4 histones (By similarity). In vitro, mediates nuclear import of SRP19 (PubMed : 11682607). Mediates nuclear import of ADAR/ADAR1 isoform 1 and isoform 5 in a RanGTP-dependent manner (PubMed : 19124606, PubMed : 24753571). Main mediator of PR-DUB complex component BAP1 nuclear import; acts redundantly with the karyopherins KPNA1 and KPNA2 (PubMed : 35446349).. (Microbial infection) In case of HIV-1 infection, binds and mediates the nuclear import of HIV-1 Rev.
Sequence similarities
Belongs to the importin beta family. Importin beta-2 subfamily.
Subcellular localisation
Nucleus
Target data
Product promise
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