Antigen: mouse COX-1 amino acids 274-288 (LMRYPPGVPPERQMA) · Host: rabbit · Application(s): WB and IHC · COX-1 is responsible for the production of prostaglandins essential for the normal function of many organs including the stomach and kidney.¹ COX-1 is generally described as being constitutively expressed, although COX-1 expression is regulated developmentally and in response to a variety of other stimuli.^2,3,4,5 Mouse COX-1 has a molecular weight of 70,000 and is expressed in nearly all tissues of the body.^6,1

1 Smith, W.L., Garavito, R.M., and DeWitt, D.L. Prostaglandin endoperoxide H synthases (cyclooxygenases)-1 and -2. J Biol Chem 271 33157-33160 (1996).

2 Brannon, T.S., North, A.J., Wells, L.B., et al. Prostacyclin synthesis in ovine pulmonary artery is developmentally regulated by changes in cyclooxygenase-1 gene expression. J Clin Invest 93 2230-2235 (1994).

3 Funk, C.D., Funk, L.B., Kennedy, M.E., et al. Human platelet/erythroleukemia cell prostaglandin G/H synthase: cDNA cloning, expression, and gene chromosomal assignment. FASEB J 5 2304-2312 (1991).

4 Samet, J.M., Fasano, M.B., Fonteh, A.N., et al. Selective induction of prostaglandin G/H synthase I by stem cell factor and dexamethasone in mast cells. J Biol Chem 270 8044-8049 (1995).

5 Hla, T., and Maciag, T. Cyclooxygenase gene expression is down-regulated by heparin-binding (acidic fibroblast) growth factor-1 in human endothelial cells. J Biol Chem 266 24059-24063 (1991).

6 DeWitt, D.L., El-Harith, E.A., Kraemer, S.A., et al. The aspirin and heme-binding sites of ovine and murine prostaglandin endoperoxide synthases. J Biol Chem 265 5192-5198 (1990).

Hla, T., and Maciag, T. Cyclooxygenase gene expression is down-regulated by heparin-binding (acidic fibroblast) growth factor-1 in human endothelial cells. J Biol Chem 266 24059-24063 (1991).

Funk, C.D., Funk, L.B., Kennedy, M.E., et al. Human platelet/erythroleukemia cell prostaglandin G/H synthase: cDNA cloning, expression, and gene chromosomal assignment. FASEB J 5 2304-2312 (1991).

DeWitt, D.L., El-Harith, E.A., Kraemer, S.A., et al. The aspirin and heme-binding sites of ovine and murine prostaglandin endoperoxide synthases. J Biol Chem 265 5192-5198 (1990).

Samet, J.M., Fasano, M.B., Fonteh, A.N., et al. Selective induction of prostaglandin G/H synthase I by stem cell factor and dexamethasone in mast cells. J Biol Chem 270 8044-8049 (1995).

Smith, W.L., Garavito, R.M., and DeWitt, D.L. Prostaglandin endoperoxide H synthases (cyclooxygenases)-1 and -2. J Biol Chem 271 33157-33160 (1996).

Brannon, T.S., North, A.J., Wells, L.B., et al. Prostacyclin synthesis in ovine pulmonary artery is developmentally regulated by changes in cyclooxygenase-1 gene expression. J Clin Invest 93 2230-2235 (1994).

Yaksh, T.L., Dirig, D.M., Conway, C.M., et al. The acute antihyperalgesic action of nonsteroidal, anti-inflammatory drugs and release of spinal prostaglandin E₂ is mediated by the inhibition of constitutive spinal cyclooxygenase-2 (COX-2) but not COX-1. J Neurosci 21(16) 5847-5853 (2001).

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