L8257
Lactoperoxidase from bovine milk
lyophilized powder (essentially salt-free), ≥80 units/mg protein
Synonym(s):
Donor:hydrogen peroxide oxidoreductase, Peroxidase
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About This Item
CAS Number:
EC Number:
232-668-6
UNSPSC Code:
12352204
MDL number:
InChI key
JSPLKZUTYZBBKA-UHFFFAOYSA-N
InChI
1S/H2O3/c1-3-2/h1-2H
form
lyophilized powder (essentially salt-free)
specific activity
≥80 units/mg protein
absorbance ratio
A412/280 nm 0.88-0.95
UniProt accession no.
storage temp.
−20°C
Gene Information
cow ... LPO(280844)
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Biochem/physiol Actions
Lactoperoxidase catalyzes the oxidation of iodide to iodine by hydrogen peroxide. This activity provides a gentle, specific alternative to chloramine T for the radioiodination of proteins and DNA.
Analysis Note
Protein determined by Lowry method.
Other Notes
One unit will form 1.0 mg of purpurogallin from pyrogallol in 20 sec at pH 6.0 at 20 °C.
Using 2,2′-azinobis(3-ethylbenzthiazoline-6-sulfonic acid) diammonium salt as substrate, two or three times the activity is observed.
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
ppe
Eyeshields, Gloves, type N95 (US)
Regulatory Information
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Lior Cohen et al.
The Journal of biological chemistry, 283(22), 15169-15176 (2008-03-15)
The bioactive surface of scorpion beta-toxins that interact with receptor site-4 at voltage-gated sodium channels is constituted of residues of the conserved betaalphabetabeta core and the C-tail. In an attempt to evaluate the extent by which residues of the toxin
A M Lew et al.
Proceedings of the National Academy of Sciences of the United States of America, 83(16), 6084-6088 (1986-08-01)
In addition to mRNA encoding the canonical form of the murine class I antigen H-2Kb (348 amino acid residues), mRNA that would encode a shortened form of H-2Kb (missing 9 amino acids from the C-terminus) has been identified in C57BL/6
Tracing with radiolabeled neurotrophins.
C S von Bartheld
Methods in molecular biology (Clifton, N.J.), 169, 195-216 (2001-01-06)
Karolina Haberska et al.
Talanta, 76(5), 1159-1164 (2008-09-02)
Lactoperoxidase (LPO) is an enzyme, which is used as an antimicrobial agent in a number of applications, e.g., food technology. In the majority of applications LPO is added to a homogeneous product phase or immobilised on product surface. In the
José Serrano et al.
Biochemical and biophysical research communications, 388(2), 443-449 (2009-08-15)
Oxidation of Amplex Red by hydrogen peroxide in the presence of horseradish peroxidase (HRP) gives rise to an intensely colour product, resorufin. This reaction has been frequently employed for measurements based on enzyme-coupled reactions that detect hydrogen peroxide as a
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