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P3243

Sigma-Aldrich

Phosphodiesterase I from Crotalus adamanteus venom

vial of ≥100 units, Purified

Synonym(s):

5′-Exonuclease, Oligonucleate 5′-nucleotidohydrolase

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About This Item

CAS Number:
9025-82-5
Enzyme Commission number:
3.1.4.1 (BRENDA, IUBMB)
EC Number:
232-806-5
MDL number:
MFCD00131883
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

Crotalus adamanteus venom

Quality Level

200

form

solid

quality

Purified

specific activity

≥20.0 unit/mg solid

packaging

vial of ≥100 units

storage temp.

−20°C

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Application

Phosphodiesterase (PDE) is any enzyme that is used to breaks phosphodiester bonds. It is a membrane-bound glycoprotein that is used to catalyze the hydrolysis of various nucleotide polyphosphates. Phosphodiesterase I is used in phosphodiesterase activation assays to hydrolyze AMP. Product P3243 is from Crotalus adamanteus venom and is purified. Product P3243 has been used to hydrolyze tRNA with wyosine derivatives into mononucleosides.

Biochem/physiol Actions

Phosphodiesterase I breaks phosphodiester bonds and catalyzes the hydrolysis of various nucleotide polyphosphates. Phosphodiesterase I is released from eucaryotic plasma membranes by phosphatidylinositol-specific phospholipase C.

Unit Definition

One Unit hydrolyzes one μmole of p-nitrophenyl thymidine-5-phosphate per minute at 25 °C, pH 8.9

Preparation Note

Purified via the method of Williams, et al. and further treated to inactivate contaminating 5′-nucleotidase activity.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

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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Sigma-Aldrich

Sigma-Aldrich

SRP0264

PDE4B2 Active human

Action of venom phosphodiesterase on deoxyribonucleic acid.
E J WILLIAMS et al.
The Journal of biological chemistry, 236, 1130-1134 (1961-04-01)
Valérie de Crécy-Lagard et al.
Molecular biology and evolution, 27(9), 2062-2077 (2010-04-13)
Wyosine (imG) and its derivatives such as wybutosine (yW) are found at position 37 of phenylalanine-specific transfer RNA (tRNA(Phe)), 3' adjacent to the anticodon in Eucarya and Archaea. In Saccharomyces cerevisiae, formation of yW requires five enzymes acting in a
Alain R Weber et al.
Nature communications, 7, 10806-10806 (2016-03-05)
Cytosine methylation in CpG dinucleotides is an epigenetic DNA modification dynamically established and maintained by DNA methyltransferases and demethylases. Molecular mechanisms of active DNA demethylation began to surface only recently with the discovery of the 5-methylcytosine (5mC)-directed hydroxylase and base
Jongwon Lim et al.
ACS omega, 5(23), 14173-14179 (2020-06-23)
The metazoan second messenger 2'3'-cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) is a cyclic dinucleotide (CDN) that induces secretion of type I interferons and activates the immune system and has thus attracted significant interest as a vaccine adjuvant or immunotherapeutic. CDN bisphosphorothioates
N Shenoy et al.
Blood cancer journal, 7(7), e587-e587 (2017-07-22)
The Ten Eleven Translocation (TET) enzymes have been found to be mutated in both diffuse large B-cell (DLBCL) and peripheral T-cell (PTCL) lymphomas resulting in DNA hypermethylation. Recent studies in embryonal stem cells showed that ascorbic acid (AA) is a
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Protocols

Enzymatic Assay of 5’-Nucleotidase

To measure 5′-nucleotidase activity, this procedure uses adenosine 5’-monophosphate and a color reagent to create a standard curve for determining the micromoles of phosphorus liberated.

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