Recombinant Human p53 Protein (His Tag)

Name: Recombinant Human p53 Protein (His Tag)
Brand: Beta LifeScience
SKU: BL-113PC
Availability: InStock

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Tag	His
Host Species	Human
Accession	NM_000546
Synonym	Homo sapiens Mdm2 p53 binding protein homolog (mouse) (MDM2); hdm2; HDMX; MGC5370 and MGC71221.
Background	Human p53 protein is composed of 393 amino acid residues with several distinct regions. The N-terminal activation domain allows p53 protein to recruit the basal transcription machinery and activate the expression of target genes. The core domain binds to target DNA in a sequence-specific manner and the majority of mutations found in human tumors occur in the region of the gene encoding this domain (1-3). The C-terminal domain is composed of predominantly basic residues and modification of the C-terminal basic domain, including acetylation, glycosylation and phosphorylation, is an essential mechanism for regulating p53 function (4-6). Disruption or loss of oligomerization function is associated with loss of cell cycle arrest (5, 6). This mutant protein (with the deletion of the C-terminus 51 residues including the entire basic domain and a portion of the tetramerization domain) can be used as a unique tool to study specific functions of p53 related to the C-terminus.
Description	Recombinant Human p53 Protein was expressed in Baculovirus-insect cell. This protein is fused with a His tag and purified using our unique purification methods.
Source	Baculovirus-insect cell
AA Sequence	EPQSDPSVEP PLSQETFSDL WKLLPENNVL SPLPSQAMDD LMLSPDDIEQ WFTEDPGPDE APRMPEAAPP VAPAPAAPTP AAPAPAPSWP LSSSVPSQKT YQGSYGFRLG FLHSGTAKSV TCTYSPALNK MFCQLAKTCP VQLWVDSTPP PGTRVRAMAI YKQSQHMTEV VRRCPHHERC SDSDGLAPPQ HLIRVEGNLR VEYLDDRNTF RHSVVVPYEP PEVGSDCTTI HYNYMCNSSC MGGMNRRPIL TIITLEDSSG NLLGRNSFEV RVCACPGRDR RTEEENLRKK GEPHHELPPG STKRALPNNT SSSPQPKKKP LDGEYFTLQI RGRERFEMF
Molecular Weight	39.5 kDa
Purity	>90% purity by SDS-PAGE
Endotoxin	<0.1 ng/µg (1 EU/µg) as determined by LAL test.
Formulation	Recombinant Human p53 Protein was kept in 20 mM Tris-Cl (pH 8.0), 20% glycerol, 100 mM KCl, 1 mM DTT and 0.2 mM EDTA.
Usage	For Research Use Only
Storage	Stored the protein at -70°C before use. Avoid repeated freeze thaw cycles.

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.