Pyoverdine aus Pseudomonas putida / Pyoverdins from Pseudomonas putida
1992; De Gruyter; Volume: 47; Issue: 7-8 Linguagem: Inglês
10.1515/znc-1992-7-801
ISSN1865-7125
Autores Tópico(s)Calcium signaling and nucleotide metabolism
ResumoThe structures of two pyoverdins (Pp 1 and Pp 2) and one dihydropyoverdin (dihydro-Pp 2) from a strain of Pseudomonas putida have been elucidated by spectroscopic methods and degradation studies. The pyoverdins Pp 1 and Pp2 consist of a chromophore which was identified as (1 S)-5-amino-2,3-dihydro-8,9-dihydroxy-1 H-pyrimido[1,2-a]quinoline-1-carboxylic acid substituted at the amino group with a 3-carboxypropanoyl or a succinamoyl residue and at the carboxy group with the N-terminus of L-Ser-L-Thr-D-Ser-L-Orn-L-threo-(OH)Asp-[D-Gln + L-Dab]*-L-Ser-D-allo-Thr-L-c(OH)Orn. Dihydro-Pp 2 differs from Pp 2 only in the chromophore, which is saturated at carbons 5 and 6. All compounds contain a tetrahydropyrimidine moiety ([D-Gln + L-Dab]*) resulting from the condensation of 2,4-diaminobutyric acid and glutamine.
Referência(s)