synthèse de rna stables dans une souche d'escherichia coli stringent pendant la carence en acide aminé spécifiqueNA synthesis does not stop and this result showed that RNA synthesis is not a coordinated process. Tdoi:10.1111/j.1432-1033.1970.tb00928.xGalibert F...
根茎粗0.5-2cm。基生叶3-4;叶柄长16-48cm,密被白色短绒毛;三出复叶,间或有1-2叶为单叶;小叶卵形,长9-16cm,宽7-12cm,先端急尖,基部心形或圆形,3裂,边缘有不规则小裂片和锯齿,上面有糙伏毛,下面密被白色绒毛,中央小叶柄长5.2-7.5cm;侧生小叶稍斜,形状似中央小叶,但叶柄较短。聚伞花序二至三回分枝,...
Guaioxide (III) and bulnesoxide (IV) were obtained from guaiol (I) and bulnesol (II), and their structures have been determined.doi:10.1002/bscb.19660750713P. LedouxB. P. VaterlausG. ChiurdoglujwsBulletin Des Sociétés Chimiques Belges...
Type-I protein prenylation is a post-translational modification of a protein bearing a CaaX motif with a prenyl moiety, this by a thioether linkage. The enzymes catalyzing those reactions are called protein prenyltransferase (PPTs). Two enzymes are involved, the protein farnesyltransferase (PFT) and...
Some properties of these vinyl monomers are described.Hart, R.Services des Recherches Chimiques, S. A. Photo‐Produits Gevaert, Mortsel‐AnversJohn Wiley & Sons, Ltd.Bulletin des Sociétés Chimiques Belges
The known stereoselective hydrogenation of 7 affords (−)-(2 R ,3 R ,6 S ,8 R )-methyl nonactate ( 8 ) as the major isomer, a chiral synthon for the synthesis of nonactin.Pierre-François DeschenauxAndré Jacot-Guillarmod
doi:10.1002/jlcr.2590050111The isotopic yields and autoradiolysis of these polymers have been tested.J. M. PétersM. GuillaumeJournal of Labelled Compounds
The filtration of diesel particulate matter is a major industrial and environmental stake, since the discovery of carcinogenic effects of this kind of particles and the advent of Euro IV (2005) and Euro V (2008-2010) regulations. The aim of this study is to point out the industrial ...
In order to study the binding on acetolactate synthase, a tritiated herbicide sulfonylurea (thifensulfuron methyl) of high specific activity was synthesized. By use of C 3 H 3 I for esterification of an acid group, a rapid incorporation of tritium into this compound may be achieved....