PMID- 9657372 OWN - NLM STAT- MEDLINE DCOM- 19980723 LR - 20190621 IS - 0014-5793 (Print) IS - 0014-5793 (Linking) VI - 429 IP - 1 DP - 1998 Jun 5 TI - Mode of receptor binding and activation by plasminogen-related growth factors. PG - 1-3 AB - Hepatocyte growth factor/scatter factor (HGF/SF) and macrophage stimulating protein (MSP) are plasminogen-related kringle proteins that lost serine protease domain enzymatic activity and became ligands for cell surface tyrosine kinase receptors. They are activated by cleavage to disulfide-linked alphabeta chains. Surprisingly, despite structural similarities, the high affinity receptor binding regions of the two proteins are different: alpha chain for HGF, and beta chain for MSP. We propose that after cleavage exposes a beta chain binding site (high affinity for MSP, low affinity for HGF), monomeric ligand induces receptor dimerization and activation via alpha and beta chain binding sites of different affinity. FAU - Miller, M AU - Miller M AD - Macromolecular Structure Laboratory, NCI-Frederick Cancer Research and Development Center, ABL-Basic Research Program, MD 21702-1201, USA. FAU - Leonard, E J AU - Leonard EJ LA - eng PT - Journal Article PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 67256-21-7 (Hepatocyte Growth Factor) RN - 81627-83-0 (Macrophage Colony-Stimulating Factor) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Animals MH - Binding Sites MH - Dimerization MH - Hepatocyte Growth Factor/chemistry/*metabolism MH - Humans MH - Kringles/physiology MH - Macrophage Colony-Stimulating Factor/chemistry/metabolism MH - Models, Molecular MH - Proto-Oncogene Proteins c-met/metabolism EDAT- 1998/07/10 00:00 MHDA- 1998/07/10 00:01 CRDT- 1998/07/10 00:00 PHST- 1998/07/10 00:00 [pubmed] PHST- 1998/07/10 00:01 [medline] PHST- 1998/07/10 00:00 [entrez] AID - S0014-5793(98)00533-X [pii] AID - 10.1016/s0014-5793(98)00533-x [doi] PST - ppublish SO - FEBS Lett. 1998 Jun 5;429(1):1-3. doi: 10.1016/s0014-5793(98)00533-x.