The process in which a protein is incorporated into the mitochondrial inner membrane from the matrix side. This includes membrane insertion of newly synthesized mitochondrially-encoded proteins, and insertion of nuclear-encoded proteins after their import into the mitochondrial matrix.
Synonyms:
exact_synonym:
insertion of proteins into the mitochondrial membrane from the inner side; protein insertion into mitochondrial inner membrane from matrix side; protein insertion into mitochondrial membrane from inner side