1 2 3 GRCh38: Ensembl release 89: ENSG00000102245 - Ensembl, May 2017 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000031132 - Ensembl, May 2017 ↑ "Human PubMed Reference:". ↑ "Mouse PubMed Reference:". ↑ Lederman S, Yellin MJ, Krichevsky A, Belko J, Lee JJ, Chess L (April 1992). "Identification of a novel surface protein on activated CD4+ T cells that induces contact-dependent B cell differentiation (help)".