Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: KEGG:D04166 (FeCl3)
 1,389 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Nine halophilic archaea viz., Halobacterium salinarum, Halobacterium sp.1, Halobacterium sp.2, Halobaculum sp., Halococcus saccharolyticus, Halorubrum saccharovorum, Haloterrigena turkmenica, Halogeometricum sp. and Natrialba sp. isolated from marine salterns around Bhavnagar coast were screened for siderophore production. Five isolates viz., Halococcus saccharolyticus, Halorubrum saccharovorum, Haloterrigena turkmenica, Halogeometricum sp. and Natrialba sp. produced siderophores as evidenced by positive reaction in FeCl3 test, CAS assay and CAS agar plate test. Determination of chemical nature of siderophores by chemical assays and bioassays identified them as carboxylates. Quantification of siderophores indicated Halorubrum saccharovorum to be the maximum siderophore producer (2.62 RE mg/ml) and Halococcus saccharolyticus to be the least (1.33 RE mg/ml). The present study is the first report on siderophore production in Indian haloarchaeal strains. Mechanism of iron assimilation in four non-siderophore isolates still needs to be investigated further.
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PMID:Siderophores of halophilic archaea and their chemical characterization. 1662 80

Under physiological conditions, ferric ions are essentially insoluble because of the formation of polynuclear hydroxo-bridged complexes. Ferrous ions are more soluble but may produce hydroxyl radicals on reaction with hydrogen peroxide. Chelation of ferric and ferrous ions with organic ligands may prevent these undesirable reactions. Alternatively, iron(III)-hydroxide/oxide can be stabilized and solubilized by tight interactions with carbohydrates. The data presented in this work show that, because of its physicochemical properties, the iron(III)-hydroxide polymaltose complex (IPC, Maltofer) does not interact with the active ingredients of commonly used drugs such as acetylsalicylic acid (CAS 50-78-2), tetracycline hydrochloride (CAS 64-75-5), calcium hydrogen-phosphate (CAS 7757-93-9), methyl-L-dopa sesquihydrate (CAS 41372-08-1), and magnesium-L-aspartate hydrochloride (CAS 28184-71-6). In contrast, as confirmed by calculations using thermodynamic parameters, FeCl3 x 6H2O (CAS 10025-77-1) can form different types of complexes with these substances. Moreover, the data show that under aerobic conditions high concentrations of ascorbic acid (CAS 50-81-7) can lead to mobilization of iron from IPC and, thus, support the observation that orange juice slightly increases the uptake of iron from IPC.
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PMID:Interactions between iron(III)-hydroxide polymaltose complex and commonly used drugs / simulations and in vitro studies. 1769 85