《英文msh词典》Contact Activation Product
[入口词] Contact Activation Product
[主题词] Factor XIa
[英文释义] Activated form of factor XI. In the intrinsic pathway,Factor XI is activated to XIa by factor XIIa in the presence of cofactor HMWK; (HIGH MOLECULAR WEIGHT KININOGEN). Factor XIa then activates factor IX to factor IXa in the presence of calcium.