Cterminal
Cterminal, commonly written as C-terminus or C terminal, is a term used in biochemistry and molecular biology to denote the end of a polypeptide chain that carries the free carboxyl group. In standard notation, protein and peptide sequences are read from the N-terminus to the C-terminus, with the N-terminus bearing the amino group and the C-terminus bearing the carboxyl group. The C-terminus can be essential for protein function, stability, localization, and interactions, and it may be subject to post-translational modifications such as amidation or proteolytic processing that reveal or alter the terminal sequence.
C-terminal regions often contain motifs or domains critical for protein activity or for mediating interactions with
C-terminal tagging is a widely used technique in research, where a tag or a fluorescent protein is