Recombinant Human VTN/TMSB4X protein
Recombinant human vitronectin (62–398aa) domain and full-length human Thymosin-b4 fusion protein cDNA were expressed in E. coli
1.0 mg/ml, sterile-filtered, in 20 mM pH 8.0 Tris-HCl Buffer, with proprietary formulation of NaCl, KCl, EDTA, arginine, DTT and Glycerol.
When coated onto tissue culture plastic, VTB fusion protein promotes one half maximal attachment of human cardiomytes cells in serum-free medium at< 0.1 µg / cm2. Maximum attachment should occur at approximately 0.5 µg / cm2.
MTRGDVFTMPEDEYTVYDDGEEKNNATVHEQVGGPSLTSDLQAQSKGNPEQTPVLKPEEEAPAPEVGASKPEGID SRPETLHPGRPQPPAEEELCSGKPFDAFTDLKNGSLFAFRGQYCYELDEKAVRPGYPKLIRDVWGIEGPIDAAFT RINCQGKTYLFKGSQYWRFEDGVLDPDYPRNISDGFDGIPDNVDAALALPAHSYSGRERVYFFKGKQYWEYQFQH QPSQEECEGSSLSAVFEHFAMMQRDSWEDIFELLFWGRTSAGTRQPQFISRDWHGVPGQVDAAMAGRIYISGMAP RPSLAKKQRFRHRNRKGYRSQRGHSRGRNQNSRRPSRGGGGSGGGGSNIEFSDKPDMAEIEKFDKSKLKKTETQE KNPLPSKETIEQEKQAGES
< 30 EU per 1 µg of the protein by the LAL method
1. When coated at 0.5-1 ug/ ml per cm2 and combined with cardiomyocytes culture medium, this recombinant protein can be used as matrix protein for benefiting cardiomyocytes differentiation in vitro.
Keep at -20centigrade for long term storage. Product is stable at 4 centigrade for at least 7 days.