ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Springer  (150)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Zeitschrift 49 (1943), S. 151-160 
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Zeitschrift 82 (1963), S. 394-402 
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Zeitschrift 78 (1962), S. 143-148 
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Mathematische Zeitschrift 74 (1960), S. 221-231 
    ISSN: 1432-1823
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 107 (1976), S. 143-160 
    ISSN: 1432-072X
    Keywords: New nucleoside-peptide antibiotic ; Chitin biosynthesis ; Structure elucidation ; Mass spectrometry ; Streptomyces tendae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Der Streptomycet Tü 901, Streptomyces tendae, bildet ein antifungisch wirkendes Nukleosid-Antibioticum, Nikkomycin. Als Angriffsort kommt die Chitinsynthese in Frage. Mit Hilfe der Massenspektrometrie und des chemischen Abbaus konnten Uracil, eine Aminohexuronsäure und eine neue, einen Pyridinring enthaltende Aminosäure nachgewiesen werden.
    Notes: Abstract From the fermentation broth of Streptomyces tendae Tü 901 a substance was isolated, which inhibits the growth of several fungi. The new antibiotic affects the chitchin biosynthesis. Its structure was identified by mass spectrometry of the products obtained after chemical degradation. Nikkomycin is a nucleoside-peptide antibiotic consisting of uracil, an amino hexuronic acid and a new amino acid containing a pyridin ring.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-072X
    Keywords: Chlorobium ; Chloroflexus ; Cell wall ; Diaminopimelic acid ; Muramic acid-6-phosphate ; Ornithine ; Peptidoglycan-polysaccharide complex
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract L-Ornithine is the only diamino acid of the peptidoglycan of the gliding phototrophic Chloroflexus aurantiacus. The other constituents are L- and D-alanine, D-glutamic acid, N-acetyl-glucosamine and N-acetyl-muramic acid (in part as muramic acid-6-phosphate), all in approximate equimolar ratios to L-ornithine, aside from small amounts of glycine and histidine. Furthermore unlike typical Gram-negative bacteria, protein is not bound to this peptidoglycan. Instead, the rigid layer (sodium dodecyl sulfate insoluble cell wall fraction) contained large amounts of a complex polysaccharide consisting of sugar O-methyl ethers, hexoses and pentoses. Its binding site is presumably muramic acid-6-phosphate of the peptidoglycan. In contrast, in Chlorobium vibrioforme f. thiosulfatophilium, meso-diaminopimelic acid was found as the only diamino acid of this peptidoglycan. As with other Gramnegative bacteria, L- and D-alanine, D-glutamic acid, N-acetyl-glucosamine and N-acetyl-muramic acid (no muramic acid-6-phosphate) were observed in approximate equimolar ratios to meso-diaminopimelic acid, except a lower D-alanine content. The rigid layer of Chlorobium vibrioforme f. thiosulfatophilum contained protein, and there were no indications for a complex polysaccharide comparable to that of Chloroflexus aurantiacus.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1432-072X
    Keywords: Microcystis aeruginosa ; Cyanobacterium ; Toxin ; Oligopeptides ; D-Amino acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Toxic and nontoxic peptides were isolated from the cyanobacterium Microcystis aeruginosa PCC 7806 by a procedure including extraction of cells with water-saturated 1-butanol, chromatography of the extract on silica gel plates and high performance liquid chromatography (HPLC) on Partisil-5. The toxin was shown to be only a minor constituent, being negatively charged and thus separable by electrophoresis, within the HPLC-purified fraction. It contained erythro-β-methyl-D-Asp, D-Glu, D-Ala, L-Leu, and L-Arg known to be part of the Microcystis peptide-toxin with Mr 994. The major part of the HPLC-purified fraction was assigned, however, to a nontoxic peptide with a Mr of 956. Partial hydrolysis studies of the nontoxic peptide(s) revealed amino acid sequences composed of D-Glu, N-methyl-Phe, and 3,4-dehydro-Pro, aside from the common L-amino acids. Cyclic linkage in the nontoxic peptide(s) appears likely.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 99 (1974), S. 307-321 
    ISSN: 1432-072X
    Keywords: Peptide Antibiotic ; Cell Wall Synthesis Inhibitor ; Uncommon Amino Acids ; Mass Spectrometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Stenothricin ist ein neues Antibioticum, das die Zellwandsynthese verschiedener Bakterien hemmt. Es konnte mittels Verteilungs-Chromatographie, Ionenaustauscher-Chromatographie und Gelfiltration in reiner Form isoliert werden. Die Strukturuntersuchungen ergaben, daß es sich bei Stenothricin um ein Peptidantibioticum mit mehreren ungewöhnlichen Aminosäuren handelt, die durch Gas-Chromatographie und Massenspektrometrie identifiziert wurden.
    Notes: Abstract Stenothricin is a new antibiotic, which inhibits the cell wall synthesis of certain bacteria. It was isolated by partition chromatography, ion exchange chromatography, and gel filtration. The structural studies show, that stenothricin is a peptide antibiotic containing several uncommon amino acids, which could be identified by gas chromatography and mass spectrometry.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 107 (1976), S. 249-256 
    ISSN: 1432-072X
    Keywords: Antibiotic derivatisation ; Yeast antibiotic ; Tryptanthrin ; Tryptophan metabolism ; Candia lipolytica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Candida lipolytica synthetisiert das Antibioticum Tryptanthrin aus 1 Mol Tryptophan und 1 Mol Anthranilsäure. Bei Verfütterung von Tryptophan und substituierter Anthranilsäure, bzw. substituiertem Tryptophan und Anthranilsäure, konnten die zu erwartenden Tryptanthrinderivate isoliert und identifiziert werden. Die Enzyme der Tryptanthrinbiosynthese wiesen in bezug auf diese Substrate, mit Ausnahme von Bromtryptophan, keine Spezifität auf. Parallel zu diesen Versuchen wurden durch chemische Synthese substituierte Tryptanthrine hergestellt. Die Dierivate wurden auf ihre antibiotische Wirksamkeit geprüft; als besonders wirksam erwiesen sich die halogenierten Verbindungen.
    Notes: Abstract Candida lipolytica synthesizes the antibiotic tryptanthrin from 1 mole tryptophan and 1 mole anthranilic acid. When feeding tryptophan and substituted anthranilic acids, or substituted tryptophans and anthranilic acid, we could isolate and identify the expected derivatives of tryptanthrin. The enzymes of the biosynthesis of tryptanthrin, with the exception of bromotryptophan, had no specifity for these substrates. In addition to these experiments substituted tryptanthrines were chemically synthesized. We checked them for antibiotic action; the halogen compounds turned out to be especially effective.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung δ-N-Hydroxy-L-arginin wurde aus Kulturfiltraten des Dermatophyten Nannizzia gypsea (Familie Gymnoascaceae, Ordnung Eurotiales, Klasse Ascomycetes) isoliert. Das Antibioticum hemmt verschiedene Bakterien und Pilze. Mit L-Arginin und L-Citrullin läßt sich die Wirkung aufheben. Die Reinigung erfolgte durch Ionenaustausch an Dowex 50WX8 mit Ammoniumhydroxid, präparative Chromatographie an Kieselgel (Laufmittel: n-Propanol-Wasser), Säulenchromatographie an Cellulose und Elution mit Äthanol-Essigsäure-Wasser. Dabei entstand das Acetat, welches zum Schluß wieder in das ursprüngliche Antibioticum überführt werden konnte. Zur chemischen Charakterisierung und Ermittlung der Struktur wurden unter anderem Gaschromatographie-Massenspektrometrie, 13C- und Protonen-NMR-Spektrometrie benutzt.
    Notes: Summary δ-N-hydroxy-L-arginine was isolated from culture filtrates of Nannizzia gypsea, a dermatophyte of the family Gymnoascaceae, order Eurotiales, class Ascomycetes. Several bacteria and fungi are inhibited by the antibiotic. The inhibition is compensated by L-arginine and L-citrulline. The substance has been purified by: ion exchange on Dowex 50WX8 with ammonium hydroxide, chromatography with n-propanol-water on silicagel layers, column chromatography on cellulose and elution with ethanol-acetic acid-water, yielding the acetate of the compound. The antibiotic was then obtained from the acetate. Gas chromatography-mass spectrometry, 1H- and 13C-NMR and other techniques have been applied in order to elucidate the constitution and configuration of the novel compound.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...