Per2 (IMAGE) Texas A&M University Caption Altered expression of luminal and basal markers in Per2-/- mammary glands. Immunflorescent staining showing localization of myoepthelial (K14 -green) and luminal (E-cadherin-red) markers in virgin Per2-/- mammary glands. Credit Dr. Cole McQueen, Texas A&M University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.