Fig 2: Localization of glycogen synthesizing enzymes in the endometrium from proestrus (PROE) until days postcoitum (DPC) 5.5. Immunohistochemistry for hexokinase 1 (HK1) and glycogen synthase (GYS) in uteri collected at PROE, DPC 1.5, DPC 3.5, and DPC 5.5 IIS. n = 4. Scale bar = 50 µm. IIS, interimplantation site; Neg, negative control.

Fig 3: Immunostaining for glycogen metabolizing enzymes at the implantation site (IS) and the interimplantation site (IIS) on DPC 5.5. Immunohistochemistry for hexokinase 1 (HK1), glycogen synthase (GYS), glycogen phosphorylase (PYG), and glucose‐6‐phosphatase (G6PC) in uteri at DPC 5.5. n = 4. Scale bar = 50 µm. DPC, days postcoitum; Neg, negative control.

Fig 4: Levels of glycogen metabolizing enzymes in uterine homogenates. (a–d) Western blots for hexokinase 1 (HK1, a), phospho‐glycogen synthase (pGYS, b), glycogen synthase (GYS, c), and glycogen phosphorylase (PYG, d) in uteri collected from mice at proestrus (PROE) and days postcoitum (DPC) 1.5, 3.5, and 5.5. n = 4.

Fig 5: Western blots comparing levels of glycogen metabolizing enzymes in the uterus at the interimplantation site (IIS) and implantation site (IS) on DPC 5.5. Levels of hexokinase 1 (HK1, a), phospho‐glycogen synthase (pGYS, b), glycogen synthase (GYS, c), and glycogen phosphorylase (PYG, d). *p < 0.05 relative to DPC 5.5‐IIS. n = 4–5. DPC, days postcoitum.