BranchAmin 4%

Amino acids are organic compounds that contain amino[a] (.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block}.mw-parser-output sub.template-chem2-sub{font-size:80%;vertical-align:-0.35em}.mw-parser-output sup.template-chem2-sup{font-size:80%;vertical-align:0.65em}−NH+3) and carboxylate −CO−2 functional groups, along with a side chain (R group) spec... [wikipedia]