Recombinant Human PSME1 Protein

Beta LifeScience SKU/CAT #: BLA-7432P

Recombinant Human PSME1 Protein

Beta LifeScience SKU/CAT #: BLA-7432P
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Product Overview

Host Species Human
Accession Q06323
Synonym 11S regulator complex alpha subunit 11S regulator complex subunit alpha 29 kD MCP activator subunit 29kD MCP activator subunit Activator of multicatalytic protease subunit 1 IFI5111 IGUP I-5111 Interferon gamma IEF SSP 5111 Interferon gamma inducible protein 5111 Interferon gamma up regulated I 5111 protein Interferon gamma up-regulated I-5111 protein MGC8628 PA28a PA28alpha Proteasome (prosome, macropain) activator subunit 1 (PA28 alpha) Proteasome activator 28 subunit alpha Proteasome activator complex subunit 1 Proteasome activator subunit 1 PSME1 PSME1_HUMAN REG-alpha REGalpha
Description Recombinant Human PSME1 Protein was expressed in E.coli. It is a Full length protein
Source E.coli
Molecular Weight 29 kDa
Purity >95% SDS-PAGE.
Endotoxin < 1.0 EU per μg of the protein as determined by the LAL method
Bioactivity Activation of 5 nM 20S proteasome by 25 nM this protein was assayed by using 50 µMSuc-LLVY-AMC as the substrate.The AMC fluorescence was monitored by a platereader with excitation and emission filters of36040 nm and 46030 nm, respectively.
Formulation Liquid Solution
Stability The recombinant protein samples are stable for up to 12 months at -80°C
Reconstitution See related COA
Unit Definition For Research Use Only
Storage Buffer Shipped on Dry Ice. Store at -80°C. Avoid freeze / thaw cycle.


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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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