MST1L encodes the human gene, Macrophage stimulating 1-like. It may also be known as: Putative macrophage stimulating 1-like protein; Brain rescue factor 1; Hepatocyte growth factor-like protein homolog; BRF-1; D1F15S1A; MSPL-7; MSPL7; MST1P9; MSTP7; MSTP9. The encoded protein has an amino acid length of 715 and a mass of 79.7 kDa. MST1L is a member of the Peptidase S1 family, Plasminogen subfamily.