Improved compositions comprising a cross-linkable protein or polypeptide, and a non-toxic material which induces cross-linking of the cross-linkable protein. The compositions are optionally and preferably prepared in a non-phosphate buffer solvent. Optionally and preferably, the cross-linkable protein includes gelatin and any gelatin variant or variant protein as described herein. Optionally and preferably, the non-toxic material comprises transglutaminase (TG), which may optionally comprise any type of calcium dependent or independent transglutaminase, which may for example optionally be a microbial transglutaminase (mTG).
改进的组合物包括可交联的蛋白质或
多肽,以及诱导可交联蛋白质交联的非毒性材料。该组合物可以选择性地和最好地在非
磷酸盐缓冲溶剂中制备。可选地和最好地,可交联蛋白质包括明胶和本说明书中所述的任何明胶变体或变体蛋白质。可选地和最好地,非毒性材料包括谷
氨酰胺转移酶(TG),该谷
氨酰胺转移酶可以选择包括任何类型的
钙依赖性或独立性谷
氨酰胺转移酶,例如可以是微
生物谷
氨酰胺转移酶(mTG)。