Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/1B70 1B70: PHENYLALANYL TRNA SYNTHETASE COMPLEXED WITH PHENYLALANINE PHENYLALANYL-TRNA SYNTHETASEMAGNESIUM IONPHENYLALANINE trna synthetase 1b70 phenylalanyl phenylalanine