Human KPNA2 Recombinant Protein (RPPB3809)

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SKU:
RPPB3809
Product type:
Recombinant Protein
Size:
10ug
Species:
Human
Target:
KPNA2
Synonyms:
Karyopherin subunit alpha 2 (RAG cohort 1 importin alpha 1)
Synonyms:
RCH1
Synonyms:
QIP2
Synonyms:
IPOA1
Source:
Escherichia Coli
Uniprot:
P52292
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Description

Product Name:Human KPNA2 Recombinant Protein
Product Code:RPPB3809
Size:10µg
Species:Human
Target:KPNA2
Synonyms:Karyopherin subunit alpha 2 (RAG cohort 1 importin alpha 1), RCH1, QIP2, IPOA1, SRP1 alpha, RAG cohort protein 1, importin alpha 1, importin subunit alpha-2, importin-alpha-P1, pendulin.
Source:Escherichia Coli
Physical Appearance:Sterile Filtered colorless solution.
Formulation:The KPNA2 solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 1mM DTT and 20% glycerol.
Stability:Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Purity:Greater than 90% as determined by SDS-PAGE.
Amino Acid Sequence:MGSSHHHHHH SSGLVPRGSH MGSHMSTNEN ANTPAARLHR FKNKGKDSTE MRRRRIEVNV ELRKAKKDDQ MLKRRNVSSF PDDATSPLQE NRNNQGTVNW SVDDIVKGIN SSNVENQLQA TQAARKLLSR EKQPPIDNII RAGLIPKFVS FLGRTDCSPI QFESAWALTN IASGTSEQTK VVVDGGAIPA FISLLASPHA HISEQAVWAL GNIAGDGSVF RDLVIKYGAV DPLLALLAVP DMSSLACGYL RNLTWTLSNL CRNKNPAPPI DAVEQILPTL VRLLHHDDPE VLADTCWAIS YLTDGPNERI GMVVKTGVVP QLVKLLGASE LPIVTPALRA IGNIVTGTDE QTQVVIDAGA LAVFPSLLTN PKTNIQKEAT WTMSNITAGR QDQIQQVVNH GLVPFLVSVL SKADFKTQKE AVWAVTNYTS GGTVEQIVYL VHCGIIEPLM NLLTAKDTKI ILVILDAISN IFQAAENLGE TEKLSIMIEE CGGLDKIEAL QNHENESVYK ASLSLIEKYF SVEEEEDQNV VPETTSEGYT FQVQDGAPGT FNF

KPNA2 belongs to the karyopherin alpha family. KPNA2 has a vital part in the nuclear import of proteins with a conventional nuclear localization signal (NLS). In vitro, KPNA2 bound specifically and directly to substrates having a simple or bipartite NLS motif. KPNA2 stimulated docking of import substrates to the nuclear envelope and together with Ran reconstituted complete nuclear protein import.

KPNA2 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 553 amino acids (1-529) and having a molecular mass of 60.5kDa.KPNA2 is fused to a 24 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

UniProt Protein Function:KPNA2: Functions in nuclear protein import as an adapter protein for nuclear receptor KPNB1. Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats 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 importin-beta and the three components separate and importin-alpha and -beta are re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran from importin. 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. Belongs to the importin alpha family.
UniProt Protein Details:

Protein type:Nuclear import; Karyopherin; Nucleoporin

Chromosomal Location of Human Ortholog: 17q24.2

Cellular Component: nucleoplasm; membrane; cytoplasm; cytosol

Molecular Function:protein binding; histone deacetylase binding; nuclear localization sequence binding; protein transporter activity

Biological Process: viral reproduction; cytokine and chemokine mediated signaling pathway; regulation of DNA recombination; NLS-bearing substrate import into nucleus; DNA metabolic process

NCBI Summary: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 [provided by RefSeq, Jul 2008]
UniProt Code:P52292
NCBI GenInfo Identifier:1708480
NCBI Gene ID:3838
NCBI Accession:P52292.1
UniProt Secondary Accession:P52292,Q53YE3, Q9BRU5, B9EJD6,
UniProt Related Accession:P52292
Molecular Weight:529
NCBI Full Name:Importin subunit alpha-1
NCBI Synonym Full Names:karyopherin alpha 2 (RAG cohort 1, importin alpha 1)
NCBI Official Symbol:KPNA2  
NCBI Official Synonym Symbols:QIP2; RCH1; IPOA1; SRP1alpha  
NCBI Protein Information:importin subunit alpha-1; pendulin; SRP1-alpha; RAG cohort 1; importin alpha 1; importin alpha 2; importin-alpha-P1; RAG cohort protein 1; importin subunit alpha-2; karyopherin subunit alpha-2
UniProt Protein Name:Importin subunit alpha-1
UniProt Synonym Protein Names:Karyopherin subunit alpha-2; RAG cohort protein 1; SRP1-alpha
UniProt Gene Name:KPNA2  
UniProt Entry Name:IMA1_HUMAN
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