This family consists of several MGC-24 (or Cd164 antigen) proteins from eukaryotic organisms. MGC-24/CD164 is a sialomucin expressed in many normal and cancerous tissues. In humans, soluble and transmembrane forms of MGC-24 are produced by alternative splicing [1].

1: The ratio of splicing variants of MGC-24/CD164, a sialomucin, correlates with the metastatic potential of colorectal carcinomas. Matsui T, Kurosawa N, Hibi K, Akiyama S, Kasai Y, Sakamoto J, Ito K, Nakao A, Muramatsu T; J Biochem (Tokyo) 2000;127:1103-1107. PMID:10833281