Molecular variant fibrinogen fusion proteins

Fibrinogen fusion proteins, methods of making, and methods of using fibrinogen fusion proteins are described. In a preferred embodiment the fibrinogen fusion protein contains a truncated Aa chain of fibrinogen. The Aa chain contains truncation site, which is a deletion of amino acids at its C-terminal region. A non-fibrinogen protein or peptide is C-terminally attached to the truncation site. The fibrinogen fusion proteins can be used alone or mixed with native fibrinogen to form fibrin polymer.