P9041
Phosphodiesterase II from bovine spleen
lyophilized powder, ≥5.0 units/mg protein
Synonym(s):
3′-Exonuclease, Spleen exonuclease, Spleen phosphodiesterase
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About This Item
Recommended Products
form
lyophilized powder
Quality Level
specific activity
≥5.0 units/mg protein
mol wt
65 kDa
UniProt accession no.
foreign activity
5′-Nucleotidase ≤1% of base activity
storage temp.
−20°C
Gene Information
cow ... PDE2A(281971)
General description
Phosphodiesterase (PDE) II belong to the PDE superfamily and includes subtypes from one to 11. They exists as a dimer and comprise a N-terminal regulatory domain, C-terminal prenylated domain and a Zn2+ containing catalytic domain. The bovine spleen PDE2 corresponds to a molecular weight of 65 kDa. It requires divalent cations for its enzymatic activity and has an optimum pH of 7.5.
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 II has been used in the enzymatic digestions of purified proteins such as the P8-dGMP complex. Bovine spleen phosphodiesterase has been used to digest N-cadherin.
Phosphodiesterase II from bovine spleen has been used in the:
- excision of pyridyloxobutyl (POB) base adducts from DNA
- digestion of DNA prior to cycloadenosine enrichment
- hydrolysis of DNA from blue mussels gill tissue into deoxyribonucleoside 3′-monophosphates
The product has been used in the characterization of polynucleotide chain length, base composition, and identity of terminal nucleotide. The enzyme has also been used in excision of pyridyloxobutyl (POB) base adducts from DNA. Furthermore, it has been used along with micrococcal endonuclease to hydrolyze purified DNA to 3 -nucleoside monophosphates.
Biochem/physiol Actions
Phosphodiesterase (PDE) breaks phosphodiester bonds. 3-Isobutyl-methylxanthine (IBMX) is a potential PDE2 inhibitor.
The enzyme acts on poly(A), poly(U), and poly(I). Native DNA and poly(C) are quite resistant to the action of this enzyme.
Hydrolyzes RNA, RNA-Core, 3′-alkyl- and 3′-aryl-nucleoside phosphates, and polydeoxyribonucleotides with 3′-phosphate end groups to 3′-mononucleotides.
Polynucleotides having 5′-phosphomonoester end groups are not attacked.
Polynucleotides having 5′-phosphomonoester end groups are not attacked.
Unit Definition
One unit will produce acid soluble nucleotides equivalent to a ΔA260 of 16 in 30 min at pH 6.5 at 37 °C, in a 2.0 mL reaction mixture. Substrate: RNA-Core. Actual A260 is measured on the supernatant after precipitation of the unhydrolyzed RNA with uranyl acetate-perchloric acid reagent.
Analysis Note
Protein determined by biuret
Storage Class
10 - Combustible liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
Certificates of Analysis (COA)
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[reaction: see text] An effective method for the synthesis of 2'-O-cyanoethylated oligoribonucleotides as a new class of 2'-O-modified RNAs was developed. The reaction of appropriately protected ribonucleoside derivatives with acrylonitrile in t-BuOH in the presence of Cs2CO3 gave 2'-O-cyanoethylated ribonucleoside
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Calcium-dependent cell-cell adhesion among embryonic chick neural retina cells is mediated by N-cadherin, a 130,000-Da integral membrane protein. We have reported that the ability of chick neural retina cells to form calcium-dependent cell-cell adhesion is also correlated with the presence
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