apo 388APO 388 refers to a specific course, subject, or topic that is not readily recognizable based solely on the information provided.combination of alleles at rs429358 and rs7412 variants, an individual could possess one of six common APOE genotypes (e4e4, e4e3, e4e2,e3e3, e2e3 and e2e2, appendix p 6 table