perinatal. relating to the period shortly before and after birth; the actual time varies between species. The last 10 to 15% of the pregnancy before parturition to the end of a comparable period after birth would cover present usage of the term. perinatal mortality. the percentage of animals in the danger period which die, as a ratio of the total number exposed.
Normal Gene Tumor Suppressor Gene Is nicknamed the Guardian of the Genome.. Can arrest the cell cycle, trigger apoptosis or senescence, and repair DNA. Chromosome 17 Cell Survival Produces a protein called tumor protein p53, which regulates cell division.
The HLA gene family provides instructions for making a group of related proteins known as the human leukocyte antigen (HLA) complex. The HLA complex helps the immune system distinguish the body's own proteins from proteins made by foreign invaders such as viruses and bacteria.HLA is the human version of the major histocompatibility complex (MHC), a gene family that occurs in many species.In humans, the MHC complex consists of more than 200 genes located close together on chromosome 6. Genes in this complex are categorized into three basic groups: class I, class II, and class III.he HLA gene family provides instructions for making a group of related proteins known as the human leukocyte antigen (HLA) complex. The HLA complex helps the immune system distinguish the body's own proteins from proteins made by foreign invaders such as viruses and bacteria.