CD336, or Natural cytotoxicity triggering receptor 2, is a human gene encoded by NCR2. It may also be known as: Lymphocyte antigen 95 homolog; Natural killer cell p44-related protein; NK-p44; NKp44; CD antigen CD336; LY95; dJ149M18.1. The encoded protein has an amino acid length of 276 and a mass of 30.7 kDa. Other isoforms may exist. CD336 is a member of the Natural cytotoxicity receptor (NCR) family. Homologs of this gene exist in other organisms, including: Nematode.