TY  - GEN
A1  - Kort, C. A. D. de
A1  - Peter, Martin G.
A1  - Koopmanschap, A. B.
T1  - Binding and degradation of juvenile hormone III by haemolymph proteins of the Colorado potato beetle: a re-examination
N2  - The haemolymph of the adult Colorado potato beetle, Lepinotarsa decemlineata Say, contains a high molecular weight (MW > 200,000) JH-III specific binding protein. The Kd value of the protein for racemic JH-III is 1.3 ± 0.2 × 10−7 M. It has a lower affinity for racemic JH-I and it does not bind JH-III-diol or JH-III-acid. The binding protein does discriminate between the enantiomers of synthetic, racemic JH-III as was determined by stereochemical anaysis of the bound and the free JH-III. Incubation of racemic JH-III with crude haemolymph results in preferential formation of (10S)-JH-III-acid, the unnatural configuration. The JH-esterase present in L. decemlineata haemolymph is not enantioselective. It is concluded that the most important function of the binding protein is that of a specific carrier, protecting the natural hormone against degradation by esterases. The carrier does not protect JH-I as efficiently as the lower homologue.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 068 
KW  - Juvenile hormone
KW  - Leptinotarsa decemlineata
KW  - JH-III-specific carrier protein
KW  - enantioselectivity
Y1  - 1983
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-16777
ER  - 
TY  - GEN
A1  - Erdelen, C.
A1  - Laschewsky, André
A1  - Ringsdorf, H.
A1  - Schneider, J.
A1  - Schuster, A.
T1  - Thermal behaviour of polymeric Langmuir-Blodgett multilayers
N2  - Langmuir-Blodgett multilayers of hydrocarbon and fluorocarbon polymers with hydrophilic spacer, lipid-polyelectrolyte complexes and mesogenic polymers have been prepared. The thermal behaviour of the multilayers was studied by small angle X-ray scattering, IR and UV—visible spectroscopy. Good thermal stabilities were found for the various classes of polymers. In addition, for both complexed multilayers and mesogenic polymer films, reorientation processes were observed.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 080 
Y1  - 1989
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-17378
ER  - 
TY  - GEN
A1  - Peter, Martin G.
A1  - Boldt, Peter C.
A1  - Niederstein, Yvonne
A1  - Peter-Katalinić, Jasna
T1  - Synthesen von Galactose-Cluster-haltigen Steroid-Derivaten
N2  - The synthesis of galactose clusters that are linked to a steroid moiety by a peptide-like spacer unit is described. The galactose cluster is obtained by Koenigs-Knorr glycosylation of TRIS-Gly-Fmoc (2b) under Helferich conditions. Peptide and ester bonds are formed after activation of carboxylic acids as diphenylthiophene dioxide (TDO) esters. 6a is synthesized in a convergent way by coupling of (Ac4Gal)3-TRIS-Gly (3e) with cholesteryl TDO succinate (5b). Coupling of (Ac4Gal)3-TRIS-Gly hydrogen succinate (3f) with Gly-O-Chol (5d) by means of EEDQ yields 6d. Reaction of (Ac4Gal)3-TRIS-Gly-SUCC-O-TDO (3g) with 25-hydroxycholesterol leads in a linear sequence to the oxysterol derivative 6f. Selective cleavage of the acetyl groups from galactose units yields the known compound 6b and the new derivatives 6e and 6g.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 042 
KW  - Glycoconjugates
KW  - Galactosides
KW  - Steroid esters
KW  - Amphiphiles
KW  - Glycopeptides
Y1  - 1990
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-16783
ER  - 
TY  - JOUR
A1  - Griel, C.
A1  - Ströhl, D.
A1  - Jeschkeit, H.
A1  - Kleinpeter, Erich
T1  - Synthetische und NMR-spektroskopische Untersuchungen der Benzzyl-aminaddition an N-Maleyl- aminosäurederivaten
Y1  - 1992
ER  - 
TY  - JOUR
A1  - Janiak, Chr.
A1  - Scharmann, T. G.
A1  - Green, J. C.
A1  - Parkin, R. P. G.
A1  - Kolm, M. J.
A1  - Riedel, E.
A1  - Mickler, Wulfhard
A1  - Elguero, J.
A1  - Claramunt, R. M.
A1  - Sanz, D.
T1  - Effects of nitrogen substitution in Poly(pyrazolyl)borato Ligands : from orbital energy levels to C-H...O Hydrogen Bonding
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kleinpeter, Erich
A1  - Koch, Andreas
A1  - Fischer, G.
A1  - Askolin, C.-P.
T1  - 13 C NMR, 15 N NMR and quantum-chemical study of the tautomerism of 2-substituted 5-ME-7-OH-1,2,4-triazolo[1,5- a]pyrimidines
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Letzel, Matthias C.
A1  - Synstad, Bjoenar
A1  - Eijsink, Vincent G. H.
A1  - Peter-Katalinic, Jasna
A1  - Peter, Martin G.
T1  - Libraries of chito-oligosaccharides of mixed acetylation patterns and their interactions with chitinases
Y1  - 1999
SN  - 3-9806494-5-8
ER  - 
TY  - JOUR
A1  - Schwarz, W. H. Eugen
A1  - Andrae, Dirk
A1  - Arnold, S. R.
A1  - Heidberg, Joachim
A1  - Hellmann jr., H.
A1  - Hinze, J.
A1  - Karachalios, A.
A1  - Kovner, M. A.
A1  - Schmidt, P. C.
A1  - Zülicke, Lutz
T1  - Hans G. Hellmann (1903 - 1938) : ein deutscher Pionier der Quantenchemie in Moskau
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Schwarz, W. H. Eugen
A1  - Andrae, Dirk
A1  - Arnold, S. R.
A1  - Heidberg, Joachim
A1  - Hellmann jr., H.
A1  - Hinze, J.
A1  - Karachalios, A.
A1  - Kovner, M. A.
A1  - Schmidt, P. C.
A1  - Zülicke, Lutz
T1  - Hans G. Hellmann (1903 - 1938) : ein Pionier der Quantenchemie
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Kumke, Michael Uwe
A1  - Specht, C. H.
A1  - Frimmel, Fritz Hartmann
T1  - Characterization of NOM adsorption to clay minerals by sizs exclusion chromatography
Y1  - 2000
ER  -