Characterization of the kisspeptin system in human spermatozoa
Kisspeptin, the product of the KISS1 gene, plays an essential role in the regulation of spermatogenesis acting primarily at the hypothalamic level of the gonadotropic axis. However, the presence of kisspeptin and its canonical receptor, KISS1R, in spermatozoa has not...
“On Water” Nucleophilic Addition of Formaldehyde N,N-Dialkylhydrazones to α-Keto Esters
Water solves the problem: The use of pure water as the reaction mixture is key for the nucleophilic addition of formaldehyde hydrazones to α-keto esters, leading to highly functionalized carbinols in high yields and short reaction times. The need for heterogeneous...
Hydrothermal synthesis of BiVO4: Structural and morphological influence on the photocatalytic activity
En el presente artículo se han sintetizado heteroestructuras jerarquizadas de BiVO4 mediante un método hidrotermal y sin surfactante. Los sistemas obtenidos presentan una buena actividad fotocatalítica para la degradación de azul de metileno bajo irradiación UV-vis. A...
Chemical Reactivity and Electrochemistry of Metal–Metal-Bonded Zincocenes
Attempts to prepare mixed-ligand zinc–zinc-bonded compounds that contain bulky C5Me5 and terphenyl groups, [Zn2(C5Me5)(Ar′)], lead to disproportionation. The resulting half-sandwich Zn(II) complexes [(η5-C5Me5)ZnAr′] (Ar′ = 2,6-(2,6-iPr2C6H3)2-C6H3, 2;...
Mutational analysis of the inactivating factors, IF7 and IF17 from Synechocystis sp. PCC 6803: critical role of arginine amino acid residues for glutamine synthetase inactivation
The Synechocystis sp. PCC 6803 glutamine synthetase type I (GS) activity is controlled by a process that involves protein–protein interaction with two inactivating factors (IF7 and IF17). IF7 is a natively unfolded, 65-residue-long protein, homologous to the...