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
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 99 (1968), S. 1705-1712 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Results of the calculation of Sn−C bond refraction constants for 287 compounds, based on data from 112 references, are presented in table 5. Accordingly, Sn−C bond refraction constants appear to be essentially higher for carbon atoms with aromatic or conjugated multiple bonds than for primary or secondary carbon atoms in alkyl groups or carbon atoms with isolated multiple bonds. *** DIRECT SUPPORT *** A3615129 00004
    Notes: Zusammenfassung Die Berechnung der Sn−C-Bindungsrefraktionskonstante anhand der Daten von 287 Verbindungen aus 112 Literaturzitaten ergibt die in Tabelle 5 zusammengefaßten Ergebnisse. Bei der Beteiligung eines aromatisch oder konjugiert mehrfachgebundenen Kohlenstoffatoms an der Sn−C-Bindung sind die gefundenen Sn−C-Bindungsrefraktionskonstaten wesentlich höher als im Falle eines primären oder sekundären Alkyl- oder isoliert mehrfach-gebundenen Kohlenstoffatoms.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 96 (1965), S. 1909-1915 
    ISSN: 1434-4475
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract We succeeded in preparing alkyl- and dialkylamino-phenoxymethylsilanes by reaction of phenoxy-methyl-chlorosilanes with primary and secondary amines (Cl/NRR′-exchange) as well as by reaction of phenoxymethylsilanes with substituted alkaliamides (C6H5O/NRR′-exchange)according equations (1) to (6). Their properties are to be seen in table 1.
    Notes: Zusammenfassung Alkyl-und Dialkylamino-phenoxy-methylsilane ließen sich sowohl durch Umsetzung von Phenoxy-methyl-chlorsilanen mit primären und sekundären Aminen unter Cl/NRR′-Austausch als auch durch Reaktion von Phenoxymethylsilanen mit substituierten Alkaliamiden unter C6H5O/NRR′-Austausch gemäß den Gl. (1) bis (6) darstellen. Ihre Eigenschaften sind aus Tab. 1 zu ersehen.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1573-3904
    Keywords: Neurotoxin ; Disulfide bonds ; Potassium channel toxin ; Protein sequence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary ShK toxin, a 35-residue peptide isolated from the Caribbean sea anemone Stichodactyla helianthus, is a potent inhibitor of the Kv 1.3 potassium channel in lymphocytes. The natural toxin contains three disulfide bonds. The disulfide pairings of the synthetic ShK toxin were elucidated as a prerequisite for studies on its structure-function relationships. The toxin was fragmented at pH 6.5 using either thermolysin or a mixture of trypsin and chymotrypsin followed by thermolysin. The fragments were isolated by RP-HPLC and were identified by sequence analysis and MALDI-TOF mass spectrometry. The three disulfides were unambiguously identified in either proteolytic digest: Cys3 to Cys35, Cys12 to Cys28 and Cys17 to Cys32. The Cys3-Cys35 disulfide, linking the amino- and carboxyl-termini, defines the characteristic cyclic structure of the molecule. A similar disulfide pairing motif is found in the snake venom-derived potassium channel blocker dendrotoxin and the mammalian antibiotic peptide defensins.
    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...