A spectrophotometric flow injection procedure involving N,N-dimethyl-p-phenylenediamine (DMPD) is applied to the sulfide monitoring of a sugar fermentation by Saccharomyces cerevisiae under laboratory conditions. The gaseous chemical species evolving from the fermentative process, mainly CO(2), are trapped allowing a cleaned
Swiss 3T3 fibroblasts can be weakly stimulated to grow by bombesin, epidermal growth factor or ceruloplasmin when cells are maintained in Dulbecco's Modified Essential Medium (DMEM), the pH of which is 7.75. Addition of insulin synergizes with the other mitogens.
Journal of applied microbiology, 85(1), 79-87 (1998-08-29)
Klebsiella pneumoniae RS-13 and Acetobacter liquefaciens S-1, both methyl red (MR)-degrading bacterial strains, degraded N,N'-dimethyl-p-phenylenediamine (DMPD) under aerobic conditions. DMPD, a toxic and mutagenic aromatic amine, is formed during the reductive cleavage of azo dyes such as MR. The effects
The Biochemical journal, 300 ( Pt 1), 31-36 (1994-05-15)
C-terminal alpha-amidation is a structural feature essential to the biological activity of many peptide hormones. Peptidylglycine alpha-amidating mono-oxygenase (PAM; EC 1.14.17.3) catalyses conversion of glycine-extended peptide hormone precursors into their corresponding alpha-hydroxyglycine derivatives. This reaction is the first step in
The Journal of biological chemistry, 271(42), 26032-26043 (1996-10-18)
The interactions of reductants with dopamine beta-monooxygenase (DbetaM) were examined using two novel classes of reductants. The steady-state kinetics of the previously characterized DbetaM reductant, N,N-dimethyl-1,4-p-phenylenediamine (DMPD), were parallel to the ascorbic acid-supported reaction with respect to pH dependence and
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