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Key Documents

C0733

Sigma-Aldrich

Cyclooxygenase 1 from sheep

glycerol solution, ≥1500 units/mg protein

Synonyme(s) :

COX-1, Constitutive cyclooxygenase, Prostaglandin H synthase 1, Prostaglandin endoperoxide synthase

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About This Item

Numéro de classification (Commission des enzymes):
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.32

Forme

glycerol solution

Niveau de qualité

Activité spécifique

≥1500 units/mg protein

Poids mol.

dimer subunit mol wt 70 kDa

Numéro d'accès UniProt

Conditions d'expédition

dry ice

Température de stockage

−70°C

Informations sur le gène

sheep ... COX1(808251)

Description générale

Cyclooxygenase 1 is a 71 kDa membrane bound protein predominantly present in endoplasmic reticulum. It has three domains, the epidermal growth factor (EGF) like domain, enzymatic and membrane binding domain. Cyclooxygenase 1 mediates prostaglandin synthesis and is modulated by anti inflammatory nonsteroidal drugs.

Application

Cyclooxygenase 1 from sheep has been used as positive control protein in western blot analysis of osteoarthritis samples and in prostaglandin synthase activity assay.

Actions biochimiques/physiologiques

COX-1 catalyzes the conversion of arachidonic acid to prostaglandin H2 (the first step in the biosynthesis of prostaglandins, thromboxanes, and prostacyclins). It is involved in the homeostatic role of eicosanoids and constitutively expressed in almost all animal tissues. Has an apparent KM of 8.3 μM for arachidonic acid.

Définition de l'unité

One unit consumes one nanomole of oxygen per minute at 37 °C in 0.1 M Tris-HCl buffer, pH 8, containing 100 μM arachidonate, 5 mM EDTA, 2 mM phenol, and 1 μM hematin.

Forme physique

Solution in 80 mM Tris-HCl, pH 8, with 0.1% TWEEN® 20, 300 μM diethyldithiocarbamate and 10% glycerol.

Informations légales

TWEEN is a registered trademark of Croda International PLC

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Consulter la Bibliothèque de documents

Sze Chern Lim et al.
American journal of human genetics, 94(2), 209-222 (2014-01-28)
Leigh syndrome (LS) is a severe neurodegenerative disorder with characteristic bilateral lesions, typically in the brainstem and basal ganglia. It usually presents in infancy and is genetically heterogeneous, but most individuals with mitochondrial complex IV (or cytochrome c oxidase) deficiency
COX-3, a cyclooxygenase-1 variant inhibited by acetaminophen and other analgesic/antipyretic drugs: cloning, structure, and expression
Chandrasekharan NV, et al.
Proceedings of the National Academy of Sciences of the USA, 99(21), 13926-13931 (2002)
Michela Zago et al.
Toxicology letters, 226(2), 107-116 (2014-01-30)
Diseases due to cigarette smoke exposure, including chronic obstructive pulmonary disease (COPD) and lung cancer, are associated with chronic inflammation typified by the increased expression of cyclooxygenase-2 (COX-2) protein. RelB is an NF-κB family member that suppresses cigarette smoke induction
Expression and activity of COX-1 and 2 and 5-LOX in joint tissues from dogs with naturally occurring coxofemoral joint osteoarthritis
Lascelles BD, et al.
Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society, 27(9), 1204-1208 (2009)
The Sigma class glutathione transferase from the liver fluke Fasciola hepatica
LaCourse EJ, et al.
PLoS Neglected Tropical Diseases, 6(5), e1666-e1666 (2012)

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