Il-21 antagonists

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) C07K 14/47 (2006.01) C07K 14/54 (2006.01) C07K 14/715 (2006.01) C12N 5/10 (2006.01) C12N 15/63 (2006.01) C12P 21/02 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2465156

The polypeptides, and the polynucleotides encoding for them, described herein are IL-21 antagonists that bind with specificity and exhibit an EC50 that is not detectable in receptor binding studies. These molecules have mutations in the D helix of the IL-21 molecule, and can be used to inhibit the activity of IL-21 with its cognate receptor.

L'invention concerne des polypeptides, et des polynucléotides codant pour ceux-ci, constituant des antagonistes d'IL-21, à spécificité de liaison et possédant une CE¿50? qui n'est pas détectable dans les études de liaison des récepteurs. Ces molécules présentent des mutations dans l'hélice D de la molécule d'IL-21 et peuvent être utilisées pour l'inhibition de l'activité d'IL-21 avec son récepteur parent.

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