【正文】
in(VSG) gene expression after Revelard et Lips et flag indicates the promoter ,the number in the box indicate the expression siteassociated genes (ESAGs), V indicates the VSG gene,and End indicates the chromosome enlargements show feature of ESAG6 and ESAG7,which encode subunits of the TfR. Fig2: Schematic representation of a trypanosomal variant surface glycoprotein(VSG) gene expression after Revelard et Lips et flag indicates the promoter ,the number in the box indicate the expression siteassociated genes (ESAGs), V indicates the VSG gene,and End indicates the chromosome enlargements show feature of ESAG6 and ESAG7,which encode subunits of the TfR.