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Streptonigrin biosynthesis. 4. Details of the tryptophan metabolism

โœ Scribed by Gould, Steven J.; Chang, Chiu Chin; Darling, Dennis S.; Roberts, John D.; Squillacote, Michael

Book ID
121378702
Publisher
American Chemical Society
Year
1980
Tongue
English
Weight
768 KB
Volume
102
Category
Article
ISSN
0002-7863

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Although biological methylation is a common reaction in biosynthetic pathways, C-methylated amino acids are quite rate-a -Methylserine 1 occurs in the antibiotic amicetin2;p-methylproline \_?. and /3\_methylphenylalanine 2 occur in bottyromycin3; and fl-methyltryptophan 3 occurs in telomycin4. Indo

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Twelve of the twenty-five carbon atoms of streptonigrin are derived from three intact erythrose units. We reported4 that feeding [U-13 C6]-D-glucose (1) to growing cultures of Streptomyces flocculus ATCC 13257 yielded streptonigrin specifically labeled at all carbons. An analysis of the 13 13 C-C sp