金山科研平台，产品价格货期咨询微信：jinshanbio Molecule Information: Midkine Aliases: ARAP; MDK; MEK; MK1; NEGF2 Entrez Gene IDs: 4192 (Human); 17242 (Mouse) Background: Midkine (MK) Midkine (MK) is a member of a family of neurotrophic and developmentally-regulated heparin-binding molecules that currently consists of midkine, pleiotrophin/PTN and avian RI-HB. Across species, MK shows 87% amino acid identity between the human and mouse proteins. Between family members, human MK is approximately 50% identical to human PTN.