Grosveld Lab (IMAGE) St. Jude Children's Research Hospital Caption A chance experiment in the Grosveld laboratory hinted that a third mTOR complex might exist that was assembled by a protein called ETV7. Credit St. Jude Children's Research Hospital 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.