Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/1ADY
HISTIDYL-TRNA SYNTHETASEHISTIDYL-ADENOSINE MONOPHOSPHATESULFATE ION
histidyl trna synthetasecomplexadenylate
https://www.ncbi.nlm.nih.gov/Structure/pdb/4YP0
Histidyl-tRNA synthetase1,2-ETHANEDIOLDIMETHYL SULFOXIDEHISTIDINEISOQUINOLIN-5-AMINESULFATE ION
histidyl trna synthetasecrystal structure