A<unk>  is the<unk>  product encoded by a gene with<unk> ion.<unk> ed<unk>  can have single amino acid change (minor, but still in many cases significant change leading to disease) or wide-range amino acid changes by e.g. truncation of C-terminus after introducing premature stop codon.
Mutant protein
Protein aggregation
Chimeric gene
Fusion gene
Fusion transcript
Polymer-protein hybrid
Genetically modified virus
Microbial toxin