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...
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
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
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....