Importin β1 (E1F1E) Rabbit mAb #51186

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Supporting Data

REACTIVITY	H M R
SENSITIVITY	Endogenous
MW (kDa)	97
Source/Isotype	Rabbit IgG

Application Key:

WB-Western Blotting
IP-Immunoprecipitation

Species Cross-Reactivity Key:

H-Human
M-Mouse
R-Rat

Product Information

Product Usage Information

Application	Dilution
Western Blotting	1:1000
Immunoprecipitation	1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Protocol

Specificity / Sensitivity

Importin β1 (E1F1E) Rabbit mAb recognizes endogenous levels of total importin β1 protein.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro307 of human importin β1 protein.

Background

Importins belong to the karyopherin family of nuclear transport proteins (1) and are divided into two subgroups: importin α and importin β. Importins mainly function in nuclear protein import and export (2,3). Importin β1 (also known as karyopherin β1, Kpnβ1, Kpnb1, or p97) plays a key role in the nuclear import process (1-3). Nuclear import via importin β1 association with adaptor importin α (also known as karyopherin α, or Kpnα) is an essential component of the classical nuclear localization signal (NLS) pathway (4). Importin α directly recognizes the NLS present in the cargo target, prompting complex formation with importin β1. The cargo:importin α:importin β1 complex is transported across the nuclear pore complex (NPC) into the nucleus, where it is dissociated by the binding of RanGTP (1-4). Nuclear import directly via importin β1 can also occur by importin β1 recognition of the cargo protein, bypassing importin α involvement. In both cases, the importin β1/target protein interaction is mediated through the binding of importin β1 HEAT repeats with the target protein sequences (either the cargo protein itself or importin α) (5).

Database Links

UniProt ID: Q14974

Entrez-Gene Id: 3837

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For Research Use Only. Not For Use In Diagnostic Procedures.

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