Gene Symbol | MDK |
---|---|
Entrez Gene | 4192 |
Alt Symbol | ARAP, MK, NEGF2 |
Species | Human |
Gene Type | protein-coding |
Description | midkine (neurite growth-promoting factor 2) |
Other Description | amphiregulin-associated protein|midgestation and kidney protein|midkine|neurite outgrowth-promoting factor 2|retinoic acid inducible factor |
Swissprots | Q2LEK4 P21741 Q9UCC7 |
Accessions | AAA59850 BAA01457 CCD35255 EAW68005 P21741 AI494596 AK130889 AK308210 AK309963 BC011704 AAH11704 BF684205 BI915189 BM016739 BM761575 BM887813 BX346163 CN266354 CN266369 CN266376 DQ323888 ABC55425 DQ323889 ABC55426 DQ323890 ABC55427 DQ893220 ABM84146 DQ896549 ABM87548 M69148 AAA58478 X55110 CAA38908 XM_011520116 XP_011518418 NM_001012333 NP_001012333 NM_001012334 NP_001012334 NM_001270550 NP_001257479 NM_001270551 NP_001257480 NM_001270552 NP_001257481 NM_002391 NP_002382 NR_073039 |
Function | Developmentally regulated, secreted growth factor homologous to pleiotrophin (PTN), which has heparin binding activity. Binds anaplastic lymphoma kinase (ALK) which induces ALK activation and subsequent phosphorylation of the insulin receptor substrate (IRS1), followed by the activation of mitogen-activated protein kinase (MAPK) and PI3-kinase, and the induction of cell proliferation. Involved in neointima formation after arterial injury, possibly by mediating leukocyte recruitment. Also involved in early fetal adrenal gland development (By similarity). {ECO:0000250}. |
Subcellular Location | Secreted. |
Tissue Specificity | Expressed in various tumor cell lines. In insulinoma tissue predominantly expressed in precancerous lesions. {ECO:0000269|PubMed:17379400}. |