>4nzd_C mol:protein length:219 Interleukin-21 receptor CPDLVCYTDYLQTVICILEMWNLHPSTLTLTWQDQYEELKDEATSCSLHRSAHNATHAT YTCHMDVFHFMADDIFSVQITDQSGQYSQECGSFLLAESIKPAPPFDVTVTFSGQYQIS WRSDYEDPAFYMLKGKLQYELQYRNRGDPWAVSPRRKLISVDSRSVSLLPLEFRKDSSY ELQVRAGPMPGSSYQGTWSEWSDPVIFQTQSEELKEHHHHHH