Source: E.coli. MW :55.2kD. Recombinant Mouse Host cell factor 2 is produced by our E.coli expression system and the target gene encoding Met1-Glu497 is expressed with a 6His tag at the N-terminus. Host cell factor 2(HCFC2) is a cytoplasmic protein. It contains 2 fibronectin type-III domains.HCFC2 binds KMT2A/MLL1, as component of the MLL1/MLL complex.Hcfc2 negative regulation of transcription from RNA polymerase II promoter.