Importin subunit alpha-2 is a protein that in humans is encoded by the KPNA2 gene. The import of proteins into the nucleus is a process that involves at least 2 steps. The first is an energy-independent docking of the protein to the nuclear envelope and the second is an energy-dependent translocation through the nuclear pore complex. Imported proteins require a nuclear localization sequence (NLS) which generally consists of a short region of basic amino acids or 2 such regions spaced about 10 amino acids apart. Proteins involved in the first step of nuclear import have been identified in different systems. These include the Xenopus protein importin and its yeast homolog, SRP1 (a suppressor of certain temperature-sensitive mutations of RNA polymerase I in Saccharomyces cerevisiae), which bind to the NLS. KPNA2 protein interacts with the NLSs of DNA helicase Q1 and SV40 T antigen and may be involved in the nuclear transport of proteins. KPNA2 also may play a role in V(D)J recombination.
Formulation
0.5mg/ml if reconstituted with 0.2ml sterile DI water
Host
Rabbit
Immunogen Region
Amino acids 2-46 (STNENANTPAARLHRFKNKGKDSTEMRRRRIEVNVELRKAKKDDQ) were used as the immunogen for the KPNA2 antibody.
Isotype
IgG
Predicted Reactivity
Human
Reactivity
Human
Recombinant
No
Uniprot
P52292
Buffer
Lyophilized from 1X PBS with 2.5% BSA, 0.025% sodium azide
Format
Antigen affinity purified
Purification
Antigen affinity
Storage
After reconstitution, the KPNA2 antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.