Beckmann H, Edit S. Detection method for monitoring .beta. tubulin isotype specific modification. US Patent 6,306,615 dated Oct 23 2001
Animals were immunized with a peptide derived from human beta tubulin with the sequence [H]-KATMSGVTTCLRFPGQLNA-[OH]
The antibody recognizes modified beta tubulin (an isotype of beta tubulin) when modified at the cysteine residue at amino acid position 239.