Microcephaly, Short Stature, and Impaired Glucose Metabolism 2, is also known as mssgm2. An important gene associated with Microcephaly, Short Stature, and Impaired Glucose Metabolism 2 is PPP1R15B (Protein Phosphatase 1 Regulatory Subunit 15B). Affiliated tissues include testis and bone, and related phenotypes are hypothyroidism and hyperlordosis