PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30268882-5 2018 RESULTS: Immunohistochemical staining of ARM embryos revealed that MSX2 was mainly expressed in the epithelium of the hindgut and urorectal septum (URS) on GD14. Peptichemio 148-151 msh homeobox 2 Rattus norvegicus 67-71 30268882-7 2018 However, in normal embryos, faint immunopositivity for MSX2 was demonstrated in the epithelium of the rectum and URS from GD14 to GD16. Peptichemio 113-116 msh homeobox 2 Rattus norvegicus 55-59