abstract |
The present invention relates to a FLINT having a sialic acid content exceeding 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 or 4.0 per molecule of FLINT Provide isoform. Furthermore, the present invention provides a mixture of the isoforms and a method for producing the isoforms. |