Succinopyoverdins--a new variety of the pyoverdin chromophore.
نویسندگان
چکیده
Pseudomonas spp. of the fluorescent group produce siderophores (so-called pyoverdins) consisting of a peptide chain attached to a pyrimidoquinoline ring system which is derived from a condensation product of L-Dab and D-Tyr. Commonly several related compounds are found to accompany the pyoverdins having the same peptide chain, but differing in the heterocyclic part. The structure elucidation of a new variety (succinopyoverdin) is described here.
منابع مشابه
Pseudoverdin, a compound related to the pyoverdin chromophore from a Pseudomonas aeruginosa strain incapable to produce pyoverdins.
From a genetically manipulated strain of Pseudomonas aeruginosa ATCC 15692 (PAO1 strain) a compound named pseudoverdin, 3-formylamino-6,7-dihydroxycoumarin, was obtained which is related to the typical pyoverdin chromophore and thus allows to shed some light on the biogenesis of the latter.
متن کاملSynthesis of the pyoverdin chromophore by a biomimetic oxidative cyclization.
The fluorescent dihydropyrimido[1,2-a]quinoline chromophore of the pyoverdin siderophores has been synthesized by a biomimetic oxidative cyclization using an iodine(III) reagent, followed by elimination and dehydrogenation.
متن کاملCan the peptide chain of a pyoverdin be bound by an ester bond to the chromophore?--The old problem of pseudobactin 7SR1.
The structure which had been proposed for the pyoverdin named pseudobactin 7SR1 (Yang and Leong, 1984) differed from those of all other pyoverdins investigated so far: its peptide chain was supposedly linked to the chromophore not by an amide bond originating from its N-terminal amino acid, but rather by an ester bond involving one of the three Ser. It will be shown that the peptide chain of ps...
متن کاملStructure and characterization of isopyoverdin from Pseudomonas putida BTP1 and its relation to the biogenetic pathway leading to pyoverdins.
Pyoverdin type siderophores produced by six fluorescent Pseudomonas strains isolated from different rhizospheres were purified and characterized. The purified ferri-pyoverdins were tested for their ability to promote the growth of other strains grown under iron deficiency conditions. Only the one obtained from Pseudomonas putida BTP1 did not act as a growth promoter. The structure of the BTP1 s...
متن کاملNew Pyoverdin-Type Siderophores from Pseudomonas fluorescens [1]
The structures o f two new pyoverdins (GM -I and GM -II) isolated from the culture medium of Pseudomonas fluorescens have been elucidated by spectroscopic methods and degradation studies. The pyoverdins consist o f a chromophore which could be identified as (1 S)-5-amino2,3-dihydro-8,9-dihydroxy-1 H-pyrimido[l,2-a]quinoline-l-carboxylic acid substituted at the amino group with a 3-carboxypropan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Zeitschrift fur Naturforschung. C, Journal of biosciences
دوره 55 3-4 شماره
صفحات -
تاریخ انتشار 2000