Emc9-KO Mouse

Emc9, an ER membrane protein complex subunit, is crucial for the insertion of diverse transmembrane proteins into the plasma membrane. The endoplasmic reticulum (ER) membrane protein complex (EMC), composed of Emc1-7, Emc10, and either Emc8 or Emc9, is essential across cell types in this process [1].

In a study using Xenopus tropicalis as a research model, it was determined that EMC9 is important for neural crest development and the development of craniofacial structures. The phenotypes observed were similar to EMC1 loss-of-function, likely due to a similar mechanism of dysfunction in transmembrane protein topogenesis [1]. Also, in cattle, EMC9 was identified as a candidate gene potentially controlled by significant eQTLs related to endometrial receptivity in recipient cows, which may be relevant for improving in-vitro production of dairy cattle embryos [2].

In conclusion, Emc9 is vital for the insertion of transmembrane proteins. Model-based research, such as in Xenopus tropicalis, has revealed its significance in neural crest and craniofacial development. In cattle, its potential role in endometrial receptivity shows its importance in reproductive-related biological processes. Understanding Emc9's functions can provide insights into congenital malformations in humans and reproductive traits in cattle.