Recombinant Human Paraspeckle component 1 (PSPC1)

Code CSB-YP018937HU
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Source Yeast
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Code CSB-EP018937HU
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Source E.coli
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Code CSB-EP018937HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP018937HU
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Source Baculovirus
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Code CSB-MP018937HU
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
PSPC1
Uniprot No.
Alternative Names
Paraspeckle component 1; Paraspeckle protein 1; PSP1; Pspc1; PSPC1_HUMAN
Species
Homo sapiens (Human)
Expression Region
1-523
Target Protein Sequence
MMLRGNLKQV RIEKNPARLR ALESAVGESE PAAAAAMALA LAGEPAPPAP APPEDHPDEE MGFTIDIKSF LKPGEKTYTQ RCRLFVGNLP TDITEEDFKR LFERYGEPSE VFINRDRGFG FIRLESRTLA EIAKAELDGT ILKSRPLRIR FATHGAALTV KNLSPVVSNE LLEQAFSQFG PVEKAVVVVD DRGRATGKGF VEFAAKPPAR KALERCGDGA FLLTTTPRPV IVEPMEQFDD EDGLPEKLMQ KTQQYHKERE QPPRFAQPGT FEFEYASRWK ALDEMEKQQR EQVDRNIREA KEKLEAEMEA ARHEHQLMLM RQDLMRRQEE LRRLEELRNQ ELQKRKQIQL RHEEEHRRRE EEMIRHREQE ELRRQQEGFK PNYMENREQE MRMGDMGPRG AINMGDAFSP APAGNQGPPP MMGMNMNNRA TIPGPPMGPG PAMGPEGAAN MGTPMMPDNG AVHNDRFPQG PPSQMGSPMG SRTGSETPQA PMSGVGPVSG GPGGFGRGSQ GGNFEGPNKR RRY
Protein Length
full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

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Target Background

Function
Regulates, cooperatively with NONO and SFPQ, androgen receptor-mediated gene transcription activity in Sertoli cell line. Binds to poly(A), poly(G) and poly(U) RNA homopolymers. Regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK-ARNTL/BMAL1 heterodimer. Together with NONO, required for the formation of nuclear paraspeckles. Plays a role in the regulation of DNA virus-mediated innate immune response by assembling into the HDP-RNP complex, a complex that serves as a platform for IRF3 phosphorylation and subsequent innate immune response activation through the cGAS-STING pathway.
Gene References into Functions
  1. Analytical ultracentrifugation to estimate the dimerization equilibrium of the SFPQ-containing dimers revealed that the SFPQ-containing dimers dissociate at low micromolar concentrations and that the heterodimers have higher affinities than the homodimer. Moreover, we observed that the apparent dissociation constant for the SFPQ/PSPC1 heterodimer was over 6-fold lower than that of the SFPQ/NONO heterodimer. PMID: 29530979
  2. Development of a pipeline for automated, high-throughput analysis of PSPC1 paraspeckle protein isoforms reveals specific roles for IMPa2, IMPa4 and IMPa6 proteins. PMID: 28240251
  3. The crystal structure of the heterodimer of the multidomain conserved region of the Drosophila behavior/human splicing proteins, PSPC1 and NONO, is described. PMID: 22416126
  4. downregulated were the a protein coding gene PSPC1 in breast and ovarian cancer cells PMID: 21532345
  5. crystal of PSPC1-NONO contained one heterodimer in the asymmetric unit and diffracted to 1.9 A resolution using synchrotron radiation PMID: 22102035
  6. We map the domain within PSP1 that is mediating this interaction and show it is required for the correct localization of PSP1 to paraspeckles. This interaction is necessary but not sufficient for paraspeckle targeting by PSP1 PMID: 16148043

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Subcellular Location
Nucleus, nucleolus. Nucleus matrix. Cytoplasm. Nucleus speckle. Note=In punctate subnuclear structures often located adjacent to splicing speckles, called paraspeckles. Colocalizes with NONO and SFPQ in paraspeckles and perinucleolar caps in an RNA-dependent manner. May cycle between paraspeckles and nucleolus. In telophase, when daughter nuclei form, localizes to perinucleolar caps.
Protein Families
PSPC family
Tissue Specificity
Expressed in pancreas, kidney, skeletal muscle, liver, lung, placenta, brain and heart.
Database Links

HGNC: 20320

OMIM: 612408

KEGG: hsa:55269

STRING: 9606.ENSP00000343966

UniGene: Hs.213198

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