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N2415

Sigma-Aldrich

Nucleoside Phosphorylase bacterial

recombinant, expressed in E. coli, ≥10 units/mg protein

Synonym(s):

PNP, Purine nucleoside phosphorylase, Purine nucleoside:orthophosphate ribosyltransferase

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About This Item

CAS Number:
9030-21-1
Enzyme Commission number:
2.4.2.1 (BRENDA, IUBMB)
EC Number:
232-857-3
MDL number:
MFCD00131739
UNSPSC Code:
12352204
NACRES:
NA.54

recombinant

expressed in E. coli

Quality Level

200

Assay

≥80% protein basis (biuret)

form

lyophilized powder

specific activity

≥10 units/mg protein

sequence note

MATPHINAEMGDFADVVLMPGDPLRAKYIAETFLEDAREVNNVRGMLGFTGTYKGRKISVMGHGMGIPSCSIYTKELITDFGVKKIIRVGSCGAVLPHVKLRDVVIGMGACTDSKVNRIRFKDHDFAAIADFDMVRNAVDAAKALGIDARVGNLFSADLFYSPDGEMFDVMEKYGILGVEMEAAGIYGVAAEFGAKALTICTVSDHIRTHEQTTAAERQTTFNDMIKIALESVLLGDKE

UniProt accession no.

P0ABP8

storage temp.

−20°C

InChI

1S/C10H12N4O4/c15-2-6-7(16)8(17)10(18-6)14-4-13-5-1-11-3-12-9(5)14/h1,3-4,6-8,10,15-17H,2H2/t6-,7-,8-,10-/m1/s1

InChI key

MRWXACSTFXYYMV-FDDDBJFASA-N

Gene Information

Escherichia coli ... deoD(945654)

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Application

Bacterial nucleoside phosphorylase has been used in a study that identified and characterized two adenosine phosphorylase activities in Mycobacterium smegmatis. Bacterial nucleoside phosphorylase has also been used in a study to investigate the inhibitionof pyrimidine and purine nucleoside phosphorylases by a 3,5-dichlorobenzoyl-substituted 2-deoxy-D-ribose-1-phosphate derivative.
Nucleoside Phosphorylase bacterial has been used in reaction buffer and buffer-exchanged to remove residual phosphate.
Nucleoside phosphorylase is used in coupled enzyme systems to measure protein dephosphorylation.

Biochem/physiol Actions

Nucleoside Phosphorylase/purine nucleoside phosphorylase (PNP), an enzyme participates in the purine salvage pathway. It also helps in the reversible cleavage of inosine to hypoxanthine and guanosine to guanine. PNP deficiency results in neurologic manifestations.
Catalyzes the following reaction:purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate

Unit Definition

One unit will cause the phosphorolysis of 1.0 micromole of inosine to hypoxanthine andribose-1-phosphate per min at pH 7.4 at 25 deg C.

Preparation Note

This is a salt-free and animal component-free enzyme preparation. This enzyme should be solubilized in a 10mM KPO4, pH 7.4 solution.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Clinical Immunology (Orlando, Fla.), 54(7), 489-508 (2019)
Irina V Varizhuk et al.
Current protocols, 2(1), e347-e347 (2022-01-21)
A simple and efficient method for the preparation of α-D-ribose 1-phosphate and 2-deoxy-α-D-ribose 1-phosphate, key intermediates in nucleoside metabolism and important starting compounds for the enzymatic synthesis of various modified nucleosides, has been proposed. It consists in near-irreversible enzymatic phosphorolysis
Disorders of purines and pyrimidines
Handbook of Clinical Neurology, 827-838 (2014)
Patricia Calero et al.
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Johnston S B and Raines R T
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