Recombinant Human Protein phosphatase 1 regulatory subunit 15A (PPP1R15A), partial

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Code CSB-EP018528HUa0
Size $306
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 85% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Cell Biology
Alternative Names
Apoptosis associated protein; GADD 34; Growth arrest and DNA damage inducible 34; Growth arrest and DNA damage-inducible protein GADD34; Myeloid differentiation primary response protein MyD116 homolog; Ppp1r15a; PR15A_HUMAN; Protein phosphatase 1 regulatory (inhibitor) subunit 15A; Protein phosphatase 1 regulatory subunit 15A
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
73.2 kDa
Protein Length
Tag Info
N-terminal 6xHis-tagged
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.
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.
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.
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
3-7 business days
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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Target Background

Recruits the serine/threonine-protein phosphatase PP1 to dephosphorylate the translation initiation factor eIF-2A/EIF2S1, thereby reversing the shut-off of protein synthesis initiated by stress-inducible kinases and facilitating recovery of cells from stress. Down-regulates the TGF-beta signaling pathway by promoting dephosphorylation of TGFB1 by PP1. May promote apoptosis by inducing TP53 phosphorylation on 'Ser-15'.
Gene References into Functions
  1. Loss of GADD34 cause vanishing white matter disease due to translation defects. PMID: 29632131
  2. Compared with normal controls, the wild type TT and allele T of rs611251 of PPP1R15A showed higher frequency in gastric carcinoma, nasopharyngeal carcinomas and lymphomas. PMID: 29186961
  3. Inhibition of IRE1 modifies the hypoxic regulation of GADD34 family gene expression in cultured glioma cells. PMID: 29227599
  4. GADD34 constitutes a mechanistic link between endoplasmic reticulum stress and mTOR inactivation, therefore promotes cell survival during endoplasmic reticulum stress. PMID: 27992581
  5. reduction of GADD34 expression significantly suppressed tumor, and resulted in decreased accumulation of MDSCs and T-cells, and inhibition of GADD34 reduced secretion of vascular epithelial growth factor alpha and transforming growth factor beta by MDSCs PMID: 27630304
  6. ANXA11 rs1049550 and PPP1R15A rs557806 may improve the identification of mCRC patients sensitive to bevacizumab regimens, and further validation is required in large cohorts PMID: 27177629
  7. Data of this study strengthen the evidence of an unfolded protein response during the course of RA and provide an insight of the potential interest in GADD34 as a relevant marker for RA. PMID: 26829377
  8. The results suggest that dephosphorylation of eIF2a by GADD34 plays an important role in doxorubicin resistance of MCF-7/ADR cells. PMID: 26743901
  9. The reactive oxygen species-generating NADPH oxidase-4 (Nox4) is induced downstream of ATF4, binds to a PP1-targeting subunit GADD34 at the endoplasmic reticulum, and inhibits PP1 activity to increase eIF2alpha phosphorylation and ATF4 levels. PMID: 26742780
  10. stress pathways lead to the induction of the protein GADD34, which appears to provide protection against the toxic effects of the secreted virulence factors in Pseudomonas aeruginosa infection PMID: 26083346
  11. The data highlight independent interactions of PP1 and eIF2alpha with GADD34, demonstrating that GADD34 functions as a scaffold both in vitro and in cells PMID: 26095357
  12. GADD34 may play a neuroprotective role against amyloid-beta toxicity. PMID: 25204313
  13. GADD34 enhances autophagy and suppresses apoptosis stimulated by LPS combined with amino acid deprivation through regulation of mTOR signaling pathway in macrophages. PMID: 25659802
  14. Data indicate that protein phosphatase 1 subunit GADD34 directly interacts with eukaryotic translation initiation factor 2 subunit alpha (eIF2alpha). PMID: 26100893
  15. GADD34 was increased in neurons of human Alzheimer's disease (AD) brains. Additionally, this finding was also observed in oligodendrocytes in human AD brains. GADD34 could be a therapeutic target for preventing ER stress in neuronal cells in AD. PMID: 26142647
  16. GADD34 promotes cell survival and adaptation to increased extracellular osmolarity by increasing the uptake of small neutral amino acids via the amino acid transporter SNAT2. PMID: 26041779
  17. Nuclear export of HTLV-1 basic leucine-zipper factor (HBZ) is essential for its interaction with GADD34 and increased phosphorylation of S6 kinase, which is an established downstream target of the mTOR pathway. PMID: 23708656
  18. GADD34 phosphorylation on tyrosine 262 modulates endoplasmic reticulum stress signaling and cell fate. PMID: 24092754
  19. Low GADD34 expression is associated with malignant mesothelioma. PMID: 23412101
  20. the association of with ER modulates intracellular trafficking and proteasomal degradation of GADD34, and in turn, its ability to modify ER morphology PMID: 21518769
  21. The data suggest that EBNA3C interacts with Gadd34, activating the upstream component of the UPR-unfolded protein response (eIF2alpha phosphorylation) while preventing downstream UPR events (XBP1 activation and ATF6 cleavage). PMID: 20040105
  22. The role of the PP1/GADD34 complex in the molecular cascade is to the translocation of CRT to the outer leaflet of the plasma membrane. PMID: 19901557
  23. SNF5/INI1 protein facilitates the function of the growth arrest and DNA damage-inducible protein and modulated protein phosphatase-1 activity PMID: 12016208
  24. GADD 34 may play an important role in melanoma progression PMID: 12168790
  25. the GADD34-mediated cellular stress response is suppressed by BAG-1 PMID: 12724406
  26. Human Gadd34 lacking the viral homology domain does not interfere with normal Gadd34-induced apoptosis in cultured cells. This suggests that viral similarity sequences may be required for Gadd34-mediated functions other than apoptosis. PMID: 12813455
  27. These findings suggest that phenethylisothiocyanate creates an oxidative cellular environment that induces DNA damage and GADD153, 34 and 45 gene activation, which in turn helps trigger apoptosis PMID: 14635187
  28. GADD34-PP1c recruited by Smad7 inhibits TGFbeta-induced cell cycle arrest. PMID: 14718519
  29. the up-regulation of GADD34 in response to global ischaemia in the human brain plus its influence on protein synthesis and DNA repair suggests that this protein may have the potential to influence cell survival PMID: 15541008
  30. GADD34 may perform important functions in cardiac tissue in response to ischaemia. PMID: 16337513
  31. During conditions of cell stress, GADD34 forms a stable complex with tuberous sclerosis complex (TSC) 1/2, causes TSC2 dephosphorylation, and inhibits signaling by mammalian target of the rapamycin (mTOR). PMID: 17273797
  32. mechanisms that control GADD34 levels in human cells PMID: 18794359
  33. GADD34 translation is regulated by a unique 5'UTR uORF mechanism to ensure proper GADD34 expression during eIF2alpha phosphorylation PMID: 19131336
  34. Infectious bronchitis virus has developed a combination of two mechanisms, i.e., blocking PKR activation and inducing GADD34 expression, to maintain de novo protein synthesis in IBV-infected cells and, meanwhile, to enhance viral replication. PMID: 19776135

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Subcellular Location
Endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side. Mitochondrion outer membrane; Peripheral membrane protein; Cytoplasmic side.
Protein Families
PPP1R15 family
Database Links

HGNC: 14375

OMIM: 611048

KEGG: hsa:23645

STRING: 9606.ENSP00000200453

UniGene: Hs.631593

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