For mammalian sterile 20–like kinase-1, see 
STK4.
| MST1 | 
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| Identifiers | 
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| Aliases | MST1, D3F15S2, DNF15S2, HGFL, MSP, NF15S2, macrophage stimulating 1 | 
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| External IDs | OMIM: 142408; MGI: 96080; HomoloGene: 7360; GeneCards: MST1; OMA:MST1 - orthologs | 
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| | Gene location (Mouse) | 
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 |  |  | Chr. | Chromosome 9 (mouse) | 
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 |  |  | Band | 9 F1|9 59.07 cM | Start | 107,957,635 bp | 
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 | End | 107,962,202 bp | 
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| Wikidata | 
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Macrophage-stimulating protein (MSP), also known as hepatocyte growth factor-like protein (HLP, HGFL, or HGFLP), is a protein that in humans is encoded by the MST1 (macrophage-stimulating 1) gene.