guanidinium
nounUK /ˌɡwænɪˈdɪniəm/
US /ˌɡwɑːnɪˈdɪniəm/
A guanidinium is a tiny charged piece of a molecule that has carbon and nitrogen in it.
The guanidinium group in the protein helps it stick to other molecules.
OTHER MEANINGS
2. A positively charged ion formed when guanidine gains a proton.
The guanidinium ion is stable in acidic solutions.
3. A chemical group found in the amino acid arginine.
The guanidinium side chain of arginine can form strong hydrogen bonds.
4. A salt or compound containing the guanidinium cation.
Guanidinium chloride is used to denature proteins in the lab.