TCO-modification of mAbs and the isotype IgG control

OK Outi Keinänen
KF Kimberly Fung
JP Jacob Pourat
VJ Vilma Jallinoja
DV Delphine Vivier
NP NagaVara Kishore Pillarsetty
AA Anu J. Airaksinen
JL Jason S. Lewis
BZ Brian M. Zeglis
MS Mirkka Sarparanta
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An activated succinimidyl ester of TCO ((E)-cyclooct-4-en-1-yl (2,5-dioxopyrrolidin-1-yl) carbonate in DMSO, 40 eq) was incubated with mAb for 1 h at RT at pH 8.5–8.7 and shaken 500 rpm. TCO-mAb was purified with size-exclusion chromatography (PD10) and with spin-column centrifugation three times (Ultracel-50). The resulting modified mAbs were characterized by MALDI mass spectrometry.

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