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D8764

Sigma-Aldrich

Deoxyribonuclease II from bovine spleen

Type V, essentially salt-free, lyophilized powder, ≥1,000 units/mg protein

Synonym(s):

DNase II, Deoxyribonucleate 3′-oligonucleotido-hydrolase

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About This Item

CAS Number:
9025-64-3
Enzyme Commission number:
3.1.22.1 (BRENDA, IUBMB)
EC Number:
232-801-8
MDL number:
MFCD00130919
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

bovine spleen

type

Type V

form

essentially salt-free, lyophilized powder

specific activity

≥1,000 units/mg protein

mol wt

38 kDa

concentration

≥50% protein

technique(s)

DNA extraction: suitable
tissue culture: suitable

suitability

suitable for molecular biology

application(s)

cell analysis

foreign activity

RNase ≤0.1%

storage temp.

−20°C

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Application

Deoxyribonuclease II from bovine spleen has been used:
  • as a component of digestion mix to isolate immune cells from colon samples
  • to digest retinal explants for single-cell suspension preparation
  • for isolation of stromal cells from human colon tissue
  • in the dissociation medium during the preparation of embryonic cardiac myocytes from rat heart

Biochem/physiol Actions

Deoxyribonuclease II, also called as acid DNAse, hydrolyzes deoxyribonucleotide linkages in native and denatured DNA yielding products with 3′-phosphates. in vitro, its optimum pH range is 4.5 - 5.0. It also acts upon p-nitrophenyl-phosphodiesters at pH 5.6 - 5.9. The molecular weight is approximately 38,000 Da.

Unit Definition

One Kunitz unit will produce a ΔA260 of 0.001 per min per mL at pH 4.6 at 25 °C; [Mg2+] = 0.83 mM

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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K Nitta et al.
Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan, 114(2), 119-128 (1994-02-01)
Deoxyribonucleases from eggs and the liver of Xenopus laevis were partially purified by DEAE-cellulose and heparin-Sepharose affinity column chromatographies. The fractions having egg and liver DNase activities were eluted on high performance liquid chromatography through TSK gel G3000SW at the
S Ingebrandt et al.
Biosensors & bioelectronics, 16(7-8), 565-570 (2001-09-07)
An extracellular recording system has been designed for the detection of electrical cell signals using p-channel or n-channel field-effect transistor (FET) arrays with non-metallized gates. Signals from rat heart muscle cell were recorded by these devices and the results described
Dopamine D2 receptor stimulation differentially affects voltage-activated calcium channels in rat pituitary melanotropic cells.
Keja J A, et al.
The Journal of Physiology, 450(1), 409-435 (1992)
STUDIES ON ACID DEOXYRIBONUCLEASE. II. ISOLATION AND CHARACTERIZATION OF SPLEEN-ACID DEOXYRIBONUCLEASE.
G BERNARDI et al.
Biochemistry, 3, 1419-1426 (1964-10-01)
K Tempel
Arzneimittel-Forschung, 30(7), 1119-1123 (1980-01-01)
The influence of three mucopolysaccharide-polysulfuric acid-esters (MPS) of different molecular weight on DNAase II-activity as well as on nucleic acid and protein synthesis of lymphocytes of rat spleen has been investigated in vitro. The results are summarized as follows: 1.
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