Recombinant Human DnaJ homolog subfamily A member 1(DNAJA1)

Code CSB-EP006999HU
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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names DNAJA1
Uniprot No. P31689
Research Area Signal Transduction
Alternative Names DJ 2; DJ2; DjA1; DnaJ (Hsp40) homolog; subfamily A; member 1; DnaJ homolog subfamily A member 1; DnaJ protein homolog 2; DNAJ2; Dnaja1; DNJA1_HUMAN; hDJ 2; HDJ-2; HDJ2; Heat shock 40 kDa protein 4; heat shock protein DNAJ like 2; Heat shock protein J2; HSDJ; HSJ-2; HSJ2; HSPF4; Human DnaJ protein 2; NEDD7; Neural precursor cell expressed developmentally down regulated 7; OTTHUMP00000021193
Species Homo sapiens (Human)
Source E.coli
Expression Region 1-394aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 52.0 kDa
Protein Length Full Length of Mature Protein
Tag Info N-terminal 10xHis-tagged and C-terminal Myc-tagged
Form Liquid or 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 If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.If the delivery form is lyophilized powder, the buffer before lyophilization is 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°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein 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 13-23 business days
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.


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Applications : Immunoblot

Review: Immunoblot (WB) of total cytoplasmic post-nuclear supernatant (PNS), mitochondrial (Mito.), microsomal (Micro.), and cytosolic (Cyt.) fractions of YDJ1-deleted cells (Dydj1) after 18 h expression of EGFP-A42 (A42) only or co-expressing DnaJA1-FLAG (DnaJA1) using Abeta-specific antibody (Abeta) 6E10 with long (Long exp.) and short time (Short exp.) exposure (two sections from one immunoblot). Cox4-specific antibody is a marker for mitochondria, Sec61 for microsomes and Ssa1 was used to verify cytosolic fraction.

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Target Background

Co-chaperone for HSPA8/Hsc70. Stimulates ATP hydrolysis, but not the folding of unfolded proteins mediated by HSPA1A (in vitro). Plays a role in protein transport into mitochondria via its role as co-chaperone. Functions as co-chaperone for HSPA1B and negatively regulates the translocation of BAX from the cytosol to mitochondria in response to cellular stress, thereby protecting cells against apoptosis. Promotes apoptosis in response to cellular stress mediated by exposure to anisomycin or UV.
Gene References into Functions
  1. that DNAJA1 controls the fate of misfolded stabilization of mutant p53 PMID: 27775703
  2. Therefore, we propose that DnaJA1 is co-opted by the influenza A virus to enter the nucleus and to enhance its RNA polymerase activity in an Hsp70 cochaperone-independent manner. PMID: 25253355
  3. structure and function of human DNAJA1 and its relationship to pancreatic cancer PMID: 24512202
  4. we combined the Hsp70-NEF pairs with cochaperones of the J protein family (DnaJA1, DnaJA2, DnaJB1, and DnaJB4) to generate 16 permutations. PMID: 24318877
  5. Moreover, the levels of DnaJA1 and Hsp70 seem to play against each other with regard to tau: as DnaJA1 levels increase, tau levels are reduced, but this can be prevented if Hsp70 levels are simultaneously induced. PMID: 22343013
  6. Hdj2 directly associates with Japanese encephalitis virus nonstructural protein NS5 and facilitates viral replication. PMID: 21999493
  7. Hsc70 and a dimer of DjA1 independently bind to an unfolded protein PMID: 20363747
  8. Hsp40 type 1 chaperones DJA1 (DNAJA1/Hdj2) and DJA2 (DNAJA2) as key modulators of hERG degradation PMID: 19940115
  9. Mammalian, yeast, bacterial, and chemical chaperones reduce aggregate formation and death in a cell model of oculopharyngeal muscular dystrophy PMID: 11796717
  10. HSP40 binding is the first step in the HSP90 chaperoning pathway for the progesterone receptor PMID: 11809754
  11. sequence analysis of two isoforms PMID: 12974469
  12. Multiple tissue polymerase chain reaction (PCR) results showed that nDnaJA1 expressed highly in testis and lung but low in thymus, prostate, colon and liver PMID: 15595953
  13. Results indicate that DjA1 and DjB4 of subfamilies A and B of human Hsp40 have different quaternary structures and chaperone functions. PMID: 15661747
  14. DJA1 was inhibitory of refolding with DJA2 and Hsc70. PMID: 18684711

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Subcellular Location Membrane; Lipid-anchor. Cytoplasm. Microsome. Nucleus. Cytoplasm, perinuclear region. Mitochondrion.
Tissue Specificity Ubiquitous. Isoform 2 is highly expressed in testis and lung, but detected at low levels in thymus, prostate, colon and liver.
Database Links

HGNC: 5229

OMIM: 602837

KEGG: hsa:3301

STRING: 9606.ENSP00000369127

UniGene: Hs.445203

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