Recombinant E.Coli Purine Nucleoside Phosphorylase Deod-Type (DEOD) Protein (His)

Name: Recombinant E.Coli Purine Nucleoside Phosphorylase Deod-Type (DEOD) Protein (His)
Brand: Beta LifeScience
SKU: BLC-11144P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

Product Overview

Description	Recombinant E.Coli Purine Nucleoside Phosphorylase Deod-Type (DEOD) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P0ABP8
Target Symbol	DEOD
Synonyms	deoD; pup; b4384; JW4347; Purine nucleoside phosphorylase DeoD-type; PNP; EC 2.4.2.1; Inosine phosphorylase
Species	Escherichia coli (strain K12)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	ATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDKE
Expression Range	2-239aa
Protein Length	Full Length of Mature Protein
Mol. Weight	29.8kDa
Research Area	Others
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	Catalyzes the reversible phosphorolytic breakdown of the N-glycosidic bond in the beta-(deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate. Acts on 6-amino and 6-oxopurines including deoxyinosine, deoxyguanosine, deoxyadenosine, adenosine, guanosine, and inosine. Does not act on xanthosine. May also catalyze a phosphate-dependent transfer of the pentose moiety from one purine base to another.
Protein Families	PNP/UDP phosphorylase family
Database References	KEGG: ecj:JW4347 STRING: 316385.ECDH10B_4542

Gene Functions References

These studies also indicate an important role of the phenyl ring of Phe159 for FRET in the wild-type purine nucleoside phosphorylase, which does not exist in the Ala159 mutant, and for the effective association of PNP with formycin A . PMID: 25754135
Data suggest that in active sites of purine nucleoside phosphorylase complexed with phosphate and formycin A, recombinant enzyme exhibits unexpected binding site for phosphate and exhibits stoichiometry of two phosphate molecules per enzyme subunit. PMID: 22569248
The deoD gene was cloned from Escherichia coli MG1665 & overexpressed in E. coli BL 21(DE3). PMID: 22113014
in solution similar to the crystal, E. coli PNP is a hexameric molecule and previous suggestions for coexistence of two oligomeric forms are incorrect. PMID: 16751611
Role of ionization of the phosphate cosubstrate on phosphorolysis by purine nucleoside phosphorylase (PNP) PMID: 17639373

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.