TRG-19, or Solute carrier family 37 (glucose-6-phosphate transporter), member 4, is a human gene encoded by SLC37A4. It may also be known as: Glucose-6-phosphate translocase; Solute carrier family 37 member 4; Transformation-related gene 19 protein; Glucose-5-phosphate transporter; G6PT1; G6PT2; G6PT3; GSD1b; GSD1c; GSD1d; PRO0685; TRG19. The encoded protein has an amino acid length of 429 and a mass of 46.4 kDa. TRG-19 is a member of the Major facilitator superfamily, Organophosphate:Pi antiporter (OPA) (TC 2.A.1.4) family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.