D4138
Deoxyribonuclease II from porcine spleen
Type IV, lyophilized powder, 2,000-6,000 Kunitz units/mg protein (biuret)
Synonym(s):
DNase II, Deoxyribonucleate 3′-oligonucleotido-hydrolase
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About This Item
CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-801-8
MDL number:
Product Name
Deoxyribonuclease II from porcine spleen, Type IV, lyophilized powder, 2,000-6,000 Kunitz units/mg protein (biuret)
type
Type IV
form
lyophilized powder
specific activity
2,000-6,000 Kunitz units/mg protein (biuret)
mol wt
45 kDa
composition
Protein, 60-80%
foreign activity
RNase ≤0.05%
storage temp.
−20°C
Quality Level
Application
DNase II from Sigma has been used to treat transformed cells during the purification of β-lactamase. It has also been used for the preparation of adenoma tissue in a study that investigated the effect of somatoprim on growth hormone secretion in human adenoma cell cultures (hSA).
Deoxyribonuclease II from porcine spleen has been used in an immunohistological study of the immune system cells in paraffin-embedded tissues. Deoxyribonuclease II from porcine spleen has also been used in a study to investigate its reassociation with the lysosomal membrane.
Biochem/physiol Actions
The enzyme is a lysosomal acid hydrolase that hydrolyzes DNA to 3′-phosphoryl oligonucleotides in the absence of metal ions, under acidic conditions. It is a non-covalently linked α·β heterodimer of approximately 45,000 Da molecular mass.
Other Notes
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
Physical form
Contains sodium chloride
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Yoko Kato-Toma et al.
The Biochemical journal, 371(Pt 1), 175-181 (2003-01-07)
13C-NMR spectroscopy was used to estimate the p K a values for the Tyr(150) (Y150) residue in wild-type and mutant class C beta-lactamases. The tyrosine residues of the wild-type and mutant lactamases were replaced with (13)C-labelled L-tyrosine ([ phenol -4-(13)C]tyrosine)
F Chianini et al.
Veterinary immunology and immunopathology, 82(3-4), 245-255 (2001-10-06)
The distribution of different cells of the immune system has been studied in formalin-fixed paraffin-embedded tissues from conventionally reared healthy pigs, using immunohistological techniques. The samples collected were: lungs, tonsils, lymph nodes (mediastinal, mesenteric, inguinal and submandibular), pancreas, spleen, liver
C C Wang et al.
The Journal of biological chemistry, 273(27), 17192-17198 (1998-06-27)
Porcine spleen DNase II, a lysosomal acid hydrolase, is a noncovalently linked alpha.beta heterodimer (Liao, T.-H. (1985) J. Biol. Chem. 260, 10708-10713). The alpha subunit, after disulfide cleavage, yields two chains, alpha1 and alpha2. The complete amino acid sequences of
Zufeng Ding et al.
Scientific reports, 3, 1077-1077 (2013-01-18)
Our studies in HUVECs show that ox-LDL induced autophagy and damaged mtDNA leading to TLR9 expression. LOX-1 antibody or the ROS inhibitor apocynin attenuated ox-LDL-mediated autophagy, mtDNA damage and TLR9 expression, suggesting that these events are LOX-1 and ROS-dependent phenomena.
Therese Ostberg et al.
Arthritis and rheumatism, 62(10), 2963-2972 (2010-06-10)
High mobility group box chromosomal protein 1 (HMGB-1) is a DNA binding nuclear protein that can be released from dying cells and activated myeloid cells. Extracellularly, HMGB-1 promotes inflammation. Clinical and experimental studies demonstrate that HMGB-1 is a pathogenic factor
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