... transport of pro-transforming growth fac-tor (TGF)-a [37], CD8a or the frizzled receptor Fz4[38], as well as in the Golgi retention of p24a, a mem-ber of the p24 family of cargo receptors [39].In ... complex formation and activation of pro-MT1-MMP. (A) Lysates of bbHT1080 cells trans-fected with pCDNA3.1 Zeo+ vector control (lane 1), pCDNA3.1 Zeo+ and furin (lane 2), pCDNA3.1 Zeo+ and GRASP55 ... Expression of EGFP-furin ICD disrupted the formation of the complex between MT1-MMP and GRASP55. Lysates of HT1080 cells transfected with pCDNA3.1 Zeo+ vector control (lane 1), MT1/MYC and GRASP55F...