DNA content seems to be an ideal reference parameter for data on secretory function or metabolism of pancreatic islets. The approved fluorometric DNA assay with diaminobenzoic acid (DABA) of Kissane and Robins comprises repeated ethanol extractions of the tissue for
Interference of Bis-Tris buffer with the diaminobenzoic acid fluorescence assay used to quantify DNA.
Journal of the American Chemical Society, 126(25), 7817-7826 (2004-06-24)
Peptide dendrimers incorporating 3,5-diaminobenzoic acid 1 as a branching unit (B) were prepared by solid-phase synthesis of ((Ac-A(3))(2)B-A(2))(2)B-Cys-A(1)-NH(2) followed by disulfide bridge formation. Twenty-one homo- and heterodimeric dendrimers were obtained by permutations of aspartate, histidine, and serine at positions A(1)
The alkali cation adductions of oligonucleotides dramatically degrade MALDI mass spectra and even affect the detection limit. Desalting is generally involved in MALDI sample preparation. This work demonstrates the feasibility of using 3,4-diaminobenzoic acid (DABA) and 3,5-DABA as the MALDI
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