Complex sentence: A number of other cytokines may be grouped with IL6 on the basis of sequence similarity: these include granulocyte colony-stimulating factor (GCSF) and myelomonocytic growth factor (MGF).
Split into simpler sentences: A number of other cytokines may be grouped with IL6 on the basis of sequence similarity. These include granulocyte colony-stimulating factor (GCSF) and myelomonocytic growth factor (MGF).