Complex sentence: Jones also suspected that there were two separate carbamyl-phosphate synthetase isozymes, and in 1966 she published research with Sally E. Hagar identifying one that required glutamine for the synthesis of orotate.
Split into simpler sentences: Jones also suspected that there were two separate carbamoyl-phosphate synthetase isozymes. In 1966, fellow chemist Sally E. Hagar and Jones published their work identifying a key enzyme that required glutamine for the synthesis of orotate.