[Term] id: PR:000050120 name: complement C3 alpha chain def: "A complement C3, signal peptide removed form that corresponds to the C-terminal portion after proteolytic cleavage that removes the intersubunit linker (four arginine residues in human, mouse, and rat). Example: UniProtKB:P01024, 672-1663." [PRO:DAN, PMID:2579379] comment: Category=modification. synonym: "C3/alpha" EXACT PRO-short-label [PRO:DAN] is_a: PR:000019177 ! complement C3, signal peptide removed form