Crystal structure the Fab fragment of therapeutic antibody daclizumab

Structural basis of immunosuppression by the therapeutic antibody daclizumab

Heavy chain of Fab fragment of daclizumab

Light chain of Fab fragment of daclizumab

DIQMTQSPSTLSASVGDRVTITCSASSSISYMHWYQQKPGKAPKLLIYTTSNLASGVPARFSGSGSGTEFTLTISSLQPD
DFATYYCHQRSTYPLTFGQGTKVEVKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQE
SVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGE

QVQLVQSGAEVKKPGSSVKVSCKASGYTFTSYRMHWVRQAPGQGLEWIGYINPSTGYTEYNQKFKDKATITADESTNTAY
MELSSLRSEDTAVYYCARGGGVFDYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSG
ALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEP

purchased from Roche, expressed in a mammalian expression system

0.1M HEPES, 0.1M ammonium sulfate, 2% PEG 400, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

IL-2Ra, CD25, Daclizumab, Zenapax, therapeutic antibody, immune system