Disclosed is a CD27L antigen binding protein having a light chain variable domain comprising an LCDR1 having no more than three amino acid additions, deletions, or substitutions from the LCDR1 sequence set forth in RSSQSLLNSNGYNYLD; an LCDR2 having no more than two amino acid additions, deletions, or substitutions from the LCDR2 sequence set forth in LGSYRAS; and an LCDR3 having no more than two amino acid additions, deletions, or substitutions from the LCDR3 sequence set forth in IQTLQTPFT; and a heavy chain variable domain comprising an HCDR1 having no more than one amino acid addition, deletion, or substitution from the HCDR1 sequence set forth in NYGIH; an HCDR2 having no more than three amino acid additions, deletions, or substitutions from the HCDR2 sequence set forth in VIWYDGSNKYYADSVKG; and an HCDR3 having no more than three amino acid additions, deletions, or substitutions from the HCDR3 sequence set forth in DGGYSGYDSGFDY.
Cd27l antigen binding proteins