Anti-CD300b antibodies enable researchers to detect and measure the CD300b antigen in biological samples. This target is a reported synonym of the CD300LB gene, which encodes CD300 molecule like family member b. This protein is known to act as a activating immune receptor through its interaction with ITAM-bearing adapter TYROBP, and also independently by recruitment of GRB2. The human version of CD300b has a canonical amino acid length of 201 residues and a protein mass of 22.7 kilodaltons. It is reported to be localized in the cell membrane of cells. CD300b is a member of the CD300 protein family.