Recombinant Human 4HPPD Protein (N-6His)

Name: Recombinant Human 4HPPD Protein (N-6His)
Brand: Beta LifeScience
SKU: BL-1482NP
Availability: InStock

BL-1482NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human 4-Hydroxyphenylpyruvate Dioxygenase is produced by our E.coli expression system and the target gene encoding Met1-Met393 is expressed with a 6His tag at the N-terminus.
Accession	P32754
Synonym	4-Hydroxyphenylpyruvate Dioxygenase; 4-Hydroxyphenylpyruvic Acid Oxidase; 4HPPD; HPD; HPPDase; HPD; PPD
Gene Background	4-Hydroxyphenylpyruvate Dioxygenase (4HPPD) belongs to the 4HPPD family. 4HPPD is a key enzyme in the degradation of tyrosine, which catalyzes the second reaction in the catabolism of tyrosine the conversation of 4-hydroxyphenylpyruvate to homogentisate. 4HPPD exists in homodimer forms, which uses zinc as a cofactor to catalyze the third step in the conversion of L-phenylalanine to fumarate and acetoacetic acid. When the active 4HPPD enzyme concentration is low in the human body, it results in high levels of tyrosine concentration in the blood, which can cause mild mental retardation at birth, and degradation in vision as a patient grows older.
Molecular Mass	47.1 KDa
Apmol Mass	40-50 KDa, reducing conditions
Formulation	Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 50mM NaCl, 1mM DTT, 20% Glycerol, pH 8.0.
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution
Storage	Store at ≤-70°C, stable for 6 months after receipt. Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.
Shipping	The product is shipped on dry ice/polar packs. Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	Key enzyme in the degradation of tyrosine.
Protein Families	4HPPD family
Database References	HGNC: 5147 OMIM: 140350 KEGG: hsa:3242 STRING: 9606.ENSP00000289004 UniGene: PMID: 26936969 4-hydroxyphenylpyruvate dioxygenase gene mutation is associated with Hawkinsinuria. PMID: 26226126 Glutamine375 has a critical role for 4-HPPD in orientating the tail and ensuring the conformation of the terminal alpha-helix of the enzyme to maintain the integrity of the active site for biocatalysis. PMID: 23950902 The IIe335Met allele is equivalent to a null mutation while the Asn241Ser allele results in a partially active enzyme with an uncoupled turnover causing elevated haykinin in urine. PMID: 17560158

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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Recombinant Human 4HPPD Protein (N-6His)

Recombinant Human 4HPPD Protein (N-6His)

Product Overview

Target Details

FAQs