1mtrishcl,ph8.5(sterile,dnasefree)

1M Tris-HCl, pH 8.5 (Sterile, DNase free) refers to a 1M Tris-HCl solution at pH 8.5 that is sterile and free of DNase contamination. 1M Tris-HCl, pH 8.5 (Sterile, DNase-free) is a commonly used buffer that has been sterilized by high-temperature autoclaving and treated to inactivate DNases. This product can be used in various biochemical and molecular biology experiments requiring DNase-free conditions, as well as in the preparation of solutions for sterile cell culture applications.

Acetylcholine perchlorate is the perchlorate salt of acetylcholine. Acetylcholine, an endogenous neurotransmitter at cholinergic synapses, could amplify the action potential of the sarcolemma following by inducing muscle contractions.

Nocardamine is a ferrioxamine siderophore that has been found inStreptomycesand has diverse biological activities.1,2,3,4It chelates iron in a chrome azurol S assay (IC50= 9.9 μM).1Nocardamine inhibitsM. smegmatisandM. bovisbiofilm formation (MIC = 10 μM for both), an effect that can be reversed by iron.2It is cytotoxic to T47D, SK-MEL-5, SK-MEL-28, and RPMI-7951 cancer cells (IC50s = 6, 18, 12, and 14 μM, respectively).3Nocardamine also induces morphological changes in BM-N4 insect cells.4 1.Lopez, J.A.V., Nogawa, T., Futamura, Y., et al.Nocardamin glucuronide, a new member of the ferrioxamine siderophores isolated from the ascamycin-producing strain Streptomyces sp. 80H647J. Antibiot. (Tokyo)72(12)991-995(2019) 2.Ishida, S., Arai, M., Niikawa, H., et al.Inhibitory effect of cyclic trihydroxamate siderophore, desferrioxamine E, on the biofilm formation of Mycobacterium speciesBiol. Pharm. Bull.34(6)917-920(2011) 3.Kalinovskaya, N.I., Romaneko, L.A., Irisawa, T., et al.Marine isolate Citricoccus sp. KMM 3890 as a source of a cyclic siderophore nocardamine with antitumor activityMicrobiol. Res.166(8)654-661(2011) 4.Matsubara, K., Sakuda, S., Tanaka, M., et al.Morphological changes in insect BM-N4 cells induced by nocardamineBiosci. Biotechnol. Biochem.62(10)2049-2051(1998)

5(Z),8(Z),14(Z)-Eicosatrienoic acid is a polyunsaturated fatty acid that can be a substrate for 5-lipoxygenase (5-LO). 5-LO from RBL-1 cells converts this fatty acid to 5-hydroxy-6,8,14-eicosatrienoic acid and 5-hydroperoxy-6,8,14-eicosatrienoic acid. Due to the lack of a double bond at C-11, this particular fatty acid cannot be used in leukotriene A formation.

Capsaicin, the chemical that imparts the spicy-hot quality of chili peppers, is produced by the fruits of plants belonging to the Capsicum family. 8-methyl Nonanoic acid is an immediate precursor of capsaicin as well as a by-product of capsaicin degradation.[1] Addition of 5 mM of 8-methyl nonanoic acid significantly increases the yield of capsaicin in both immobilized and freely suspended cells of C. frutescens. [2] Capsaicin has reported antimicrobial properties, however isocapric acid can act as a growth substrate in certain bacterial strains.[3]

Sphingosine-1-phosphate (S1P) is a bioactive lipid that exhibits a broad spectrum of biological activities including cell proliferation, survival, migration, cytoskeletal organization, and morphogenesis. It exerts its activity by binding to five distinct G protein-coupled receptors, S1P1 EDG-1, S1P2 EDG-5, S1P3 EDG-3, S1P4 EDG-6, and S1P5 EDG-8. W140 is an inactive enantiomer of W146, a selective S1P1 antagonist (Ki = 77 nM), that binds to the S1P1 receptor with a Ki of 4.6 μM (2a = W146; 2b = W140 in supplemental material). It exhibits no biological activity in vivo and can therefore serve as an effective control compound for experiments involving W146.