Human Importin alpha 2/KPNA2 Antibody

Catalog #: AF6207 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
AF6207
AF6207-SP

Detection of Human Importin alpha 2/KPNA2 by Western Blot.

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Human Importin alpha 2/KPNA2 Antibody Summary

Species Reactivity

Human

Specificity

Detects human Importin alpha 2/KPNA2 in Western blots.

Source

Polyclonal Sheep IgG

Purification

Antigen Affinity-purified

Immunogen

E. coli-derived recombinant human Importin alpha 2/KPNA2
Met1-Asp132
Accession # P52292

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Western Blot

0.5 µg/mL

See below

Immunocytochemistry

5-15 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human Importin alpha 2/KPNA2 by Western Blot. Western blot shows lysates of Jurkat human acute T cell leukemia cell line, MCF-7 human breast cancer cell line, and HeLa human cervical epithelial carcinoma cell line. PVDF Membrane was probed with 0.5 µg/mL of Sheep Anti-Human Importin a2/KPNA2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6207) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Importin a2/KPNA2 at approximately 60 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunocytochemistry

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Importin alpha 2/KPNA2 in NTera‑2 Human Cell Line. Importin a2/KPNA2 was detected in immersion fixed NTera-2 human testicular embryonic carcinoma cell line using Sheep Anti-Human Importin a2/KPNA2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6207) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red, upper panel; Catalog # NL010) and counterstained with DAPI (blue, lower panel). Specific staining was localized to cytoplasm and nuclei. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Immunocytochemistry

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Importin alpha 2/KPNA2 in HeLa Human Cell Line. Importin alpha 2/KPNA2 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line using Sheep Anti-Human Importin alpha 2/KPNA2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6207) at 5 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; NL010) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. Staining was performed using our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Importin alpha 2/KPNA2

KPNA2 (Karyopherin subunit alpha 2; also SRP1 alpha, importin subunit alpha 2 and RAG1) is a 58-60 kDa member of the importin alpha family of proteins. It is ubiquitously expressed, and found in both nucleus and cytoplasm. KPNA2 functions as a cargo carrier that transports various complexes from cytoplasm into nucleus. For the MRN DNA repair complex, KPNA2 first binds to NBS1, and then to importin beta 1, which mediates movement through the nuclear pore. Human KPNA2 is 529 amino acids (aa) in length. It contains an N-terminal IBB/importin beta domain (aa 2-60), ten Armadillo repeats that bind "cargo" (aa 71-496) and three intervening NLSs. There is one splice variant that shows a deletion of aa 72-310, coupled to an 11 aa substitution for aa 389-406. Over aa 1-132, human KPNA2 shares 94% aa identity with mouse KPNA2.

Long Name

Karyopherin alpha 2

Entrez Gene IDs

3838 (Human); 16647 (Mouse); 85245 (Rat)

Alternate Names

Importin alpha 1; Importin alpha 2; importin-alpha-P1; IPOA1; karyopherin alpha 2 (RAG cohort 1, importin alpha 1); Karyopherin subunit alpha-2; KPNA2; Pendulin; QIP2; QIP2importin alpha 2; RAG cohort 1; RAG cohort protein 1; RCH1; RCH1importin subunit alpha-2; SRP1; SRP1alpha; SRP1-alpha