Search results for "clam"
showing 10 items of 454 documents
CCDC 205480: Experimental Crystal Structure Determination
2004
Related Article: A.Lehtonen, R.Sillanpaa|2003|Polyhedron|22|2755|doi:10.1016/S0277-5387(03)00373-5
CCDC 198064: Experimental Crystal Structure Determination
2004
Related Article: A.Lehtonen, R.Sillanpaa|2003|Polyhedron|22|2755|doi:10.1016/S0277-5387(03)00373-5
CCDC 205481: Experimental Crystal Structure Determination
2004
Related Article: A.Lehtonen, R.Sillanpaa|2003|Polyhedron|22|2755|doi:10.1016/S0277-5387(03)00373-5
CCDC 121632: Experimental Crystal Structure Determination
2002
Related Article: A.B.Gaspar, M.C.Munoz, J.A.Real|2001|C.R.Acad.Sci.,Ser.IIc:Chim.|4|193|doi:10.1016/S1387-1609(00)01216-0
CCDC 709725: Experimental Crystal Structure Determination
2009
Related Article: I.S.Jahro, D.Onggo, Ismunandar, S.I.Rahayu, M.C.Munoz, A.B.Gaspar, M.Seredyuk, P.Gutlich, J.A.Real|2008|Inorg.Chim.Acta|361|4047|doi:10.1016/j.ica.2008.03.122
CCDC 709727: Experimental Crystal Structure Determination
2009
Related Article: I.S.Jahro, D.Onggo, Ismunandar, S.I.Rahayu, M.C.Munoz, A.B.Gaspar, M.Seredyuk, P.Gutlich, J.A.Real|2008|Inorg.Chim.Acta|361|4047|doi:10.1016/j.ica.2008.03.122
CCDC 641477: Experimental Crystal Structure Determination
2010
Related Article: U.Scholten, C.Diserens, H.Stoeckli-Evans, K.Bernauer, M.Meyer, L.Stuppfler, D.Lucas|2009|Inorg.Chem.|48|10942|doi:10.1021/ic900330q
Triterpene Saponins from Cyclamen trocopteranthum
2010
Two new triterpene saponins ( 1- 2) together with three known saponins, deglucocyclamin I ( 3), cyclamin ( 4), and mirabilin ( 5), were isolated from the tubers of Cyclamen trocopteranthum. They were elucidated as 3 beta- O-{4- O-[3-hydroxyl-3-methylglutaryl]- beta-D-xylopyranosyl-(1 --> 2)- beta-D-glucopyranosyl-(1 --> 4)-[ beta-D-glucopyranosyl-(1 --> 2)]- alpha-L-arabinopyranosyl}-16 alpha-hydroxy-13 beta,28-epoxy-oleanan-30-al ( 1) and 3 beta- O-{4- O-[3-hydroxyl-3-methylglutaryl]- beta-D-xylopyranosyl-(1 --> 2)-[ beta-D-glucopyranosyl-(1 --> 6)]- beta-D-glucopyranosyl-(1 --> 4)-[ beta-D-glucopyranosyl-(1 --> 2)]- alpha-L-arabinopyranosyl}-16 alpha-hydroxy-20,30-lactone-olean-12-ene ( 2…
Stable expression in HEK-293 cells of the rat alpha3/beta4 subtype of neuronal nicotinic acetylcholine receptor.
1996
The alpha3/beta4 subtype of neuronal nicotinic acetylcholine receptor (nAChR) was stably expressed in human embryonic kidney (HEK) 293 cells that co-expressed a voltage-gated Ca2+ channel. alpha3/beta4-nAChR-expressing clones were identified using the fura-2 Ca2+ imaging technique, and were further characterised by single-cell and whole-cell patch-clamp studies. Acetylcholine (ACh) induced fast activating currents which showed desensitisation and inward rectification. The conductance of the ACh-activated channel was 29 pS. The order of potency of the nicotinic agonists tested was cytisine approximately = nicotine > acetylcholine. The EC50 value for ACh was 145 microM; the Hill coefficient w…
Conformations and coordination schemes of carboxylate and carbamoyl derivatives of the tetraazamacrocycles cyclen and cyclam, and the relation to the…
1998
Abstract This paper discusses and rationalizes the metal coordination pattern of 12- and 14-membered tetraazamacrocyclic carboxylate and carbamoyl ligands based on the cyclen and cyclam framework in light of their acido–basic properties. Structural and protonation data are reviewed in order to illustrate the influence of the free ligand's protonation state and of the pH conditions during the complexation reaction on the final coordination mode of the metallic cations.