摘要：

the gene product obtained by expression of the gene, is obtained by a process consisting of (i) to isolate a first cell having a characteristic of post - translation of interest, the characteristic of post translation is the presence of an oligosaccharide, or a polysaccharide of interest linked to a membrane on the surface of the first cell.the presence of an oligosaccharide or polysaccharide extract of soluble in the first cell.the presence of a specific glycosyltransferase activity in an extract of the first cell; and (ii) to create a library of cdna or genomic dna as the genetic material of the first single cell; (iii) transforming cell o using the library hosts; and (iv) to sort out those host cells transformed in order to obtain a cellwith the feature of domestic guest post translationally, producing a cell containing the gene.

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