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Journal Article

The soluble blue pigment, indochrome, of arthrobacter polychromogenes

MPS-Authors
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Knackmuss,  Hans-Joachim
Max Planck Institute for Medical Research, Max Planck Society;

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Cosens,  Gladys
Max Planck Institute for Medical Research, Max Planck Society;

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Starr,  Mortimer
Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Knackmuss, H.-J., Cosens, G., & Starr, M. (1969). The soluble blue pigment, indochrome, of arthrobacter polychromogenes. European Journal of Biochemistry, 10(1), 90-95. doi:10.1111/j.1432-1033.1969.tb00659.x.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-77FC-7
Abstract
The production and purification of indochrome, the soluble pigment from Arthrobacter polychromogenes, is described. Four isomeric 3-hydroxy-6-d-ribosyl-2-aza-benzoquinone-(1,4)-4-[2,6-dihydroxy-5-d-ribosyl-pyridyl-(3)-imides] have been isolated from the natural product as the main components. In indochrome A two β-d-ribopyranosyl residues, in indochrome B II two β-d-ribofuranosyl residues, are bound to the aglycone. The pigment fractions B I and B III contain differently configurated d-ribosyl residues, which for B I were found to be the α- and β-configurations of the pyranose form. Nitric acid degradation of the pigment and condensation with phenylhydrazine yields mainly 3-β-d-ribopyranosyl-5-benzeneazo-2,6-dihydroxy-pyridine. All d-ribopyranosyl residues were found to be in the C1(D) conformation. d-Ribose was liberated from the aglycones by ozonolysis.