Recombinant Human 26S Proteasome Non-Atpase Regulatory Subunit 14 (PSMD14) Protein (MBP&His)

Beta LifeScience SKU/CAT #: BLC-05087P
Based on the SEQUEST from database of Baculovirus host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from Baculovirus-expressed Homo sapiens (Human) PSMD14.
Based on the SEQUEST from database of Baculovirus host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from Baculovirus-expressed Homo sapiens (Human) PSMD14.
Based on the SEQUEST from database of Baculovirus host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from Baculovirus-expressed Homo sapiens (Human) PSMD14.
Based on the SEQUEST from database of Baculovirus host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from Baculovirus-expressed Homo sapiens (Human) PSMD14.

Recombinant Human 26S Proteasome Non-Atpase Regulatory Subunit 14 (PSMD14) Protein (MBP&His)

Beta LifeScience SKU/CAT #: BLC-05087P
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Product Overview

Description Recombinant Human 26S Proteasome Non-Atpase Regulatory Subunit 14 (PSMD14) Protein (MBP&His) is produced by our Baculovirus expression system. This is a full length protein.
Purity Greater than 85% as determined by SDS-PAGE.
Uniprotkb O00487
Target Symbol PSMD14
Synonyms 26S proteasome non-ATPase regulatory subunit 14; 26S proteasome regulatory subunit rpn11; 26S proteasome-associated PAD1 homolog 1; 26S proteasome-associated PAD1 homolog; PAD1; PAD1, yeast, homolog of; POH1; Proteasome (prosome, macropain) 26S subunit, non-ATPase, 14; Proteasome 26S subunit non ATPase 14; PSDE_HUMAN; Psmd14; RPN11; Testis tissue sperm binding protein Li 69n
Species Homo sapiens (Human)
Expression System Baculovirus
Tag N-MBP&C-6His
Target Protein Sequence MDRLLRLGGGMPGLGQGPPTDAPAVDTAEQVYISSLALLKMLKHGRAGVPMEVMGLMLGEFVDDYTVRVIDVFAMPQSGTGVSVEAVDPVFQAKMLDMLKQTGRPEMVVGWYHSHPGFGCWLSGVDINTQQSFEALSERAVAVVVDPIQSVKGKVVIDAFRLINANMMVLGHEPRQTTSNLGHLNKPSIQALIHGLNRHYYSITINYRKNELEQKMLLNLHKKSWMEGLTLQDYSEHCKHNESVVKEMLELAKNYNKAVEEEDKMTPEQLAIKNVGKQDPKRHLEEHVDVLMTSNIVQCLAAMLDTVVFK
Expression Range 1-310aa
Protein Length Full Length
Mol. Weight 79.2 kDa
Research Area Cell Biology
Form Liquid or Lyophilized powder
Buffer Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function Component of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. This complex plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins, which could impair cellular functions, and by removing proteins whose functions are no longer required. Therefore, the proteasome participates in numerous cellular processes, including cell cycle progression, apoptosis, or DNA damage repair. The PSMD14 subunit is a metalloprotease that specifically cleaves 'Lys-63'-linked polyubiquitin chains within the complex. Plays a role in response to double-strand breaks (DSBs): acts as a regulator of non-homologous end joining (NHEJ) by cleaving 'Lys-63'-linked polyubiquitin, thereby promoting retention of JMJD2A/KDM4A on chromatin and restricting TP53BP1 accumulation. Also involved in homologous recombination repair by promoting RAD51 loading.
Protein Families Peptidase M67A family, PSMD14 subfamily
Database References

HGNC: 16889

OMIM: 607173

KEGG: hsa:10213

STRING: 9606.ENSP00000386541

UniGene: PMID: 28535005

  • Deubiquitylase POH1 stabilizes E2F1 protein through binding to and deubiquitylating E2F1 in liver cancer. PMID: 26510456
  • The data demonstrated that proteasomal POH1 is a key de-ubiquitinating enzyme that regulates ubiquitin conjugates generated in response to damage and that several aspects of the DNA double-strand break response are regulated by the proteasome. PMID: 22909820
  • Disorder of POH1 expression is involved in the onset of idiopathic nephrotic syndrome (INS), and confers multidrug resistance in children with INS PMID: 19419512
  • Down-regulation of PSMD14 results in decreased cell proliferation, cell cycle arrest and senescence. A comparative study with PSMB5, revealed that PSMB5 and PSMD14 have different effects on cell cycle, senescence and associated molecular events. PMID: 19732767
  • Ectopic expression of POH1 in HEK293 cells decreased the level of c-Jun ubiquitination, leading to significant accumulation of the protein and a corresponding increase in AP1-mediated gene expression PMID: 16569633
  • An intact zinc metalloproteinase motif of Poh1 is essential for cell viability and 26S proteasome function. PMID: 17237285
  • Specificity for K63-linked polyubiquitin is a common property of the JAMM/MPN+ family of deubiquitinating enzymes. PMID: 19214193
  • FAQs

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    Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

    Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

    Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

    Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

    To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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