Ligand name: HISTIDINE
PDB ligand accession: HIS
DrugBank: DB00117
PubChem: 5288559;5460943;86580368;
ChEMBL: n/a
InChI Key: HNDVDQJCIGZPNO-YFKPBYRVSA-O
SMILES: c1c([nH+]c[nH]1)CC(C(=O)O)N
Drug action: n/a

ClassyFire chemical classification:

• Kingdom: Organic compounds
  • Superclass: Organic acids and derivatives
    • Class: Carboxylic acids and derivatives
      • Subclass: Amino acids, peptides, and analogues

List of PDB structures and/or AlphaFold models with target protein Q4DA54

PDB/AF Accession	PyMOL script	Experimental / Predicted	Interacting ECOD domains	ECOD X-group name	LigPlot
4YRP	Download	Experimental	e4yrpA2 e4yrpB2	Class II aaRS and biotin synthetases Class II aaRS and biotin synthetases	LigPlot
4YRR	Download	Experimental	e4yrrA1 e4yrrB2	Class II aaRS and biotin synthetases Class II aaRS and biotin synthetases	LigPlot
4YRN	Download	Experimental	e4yrnA2 e4yrnB2	Class II aaRS and biotin synthetases Class II aaRS and biotin synthetases	LigPlot
3LC0	Download	Experimental	e3lc0A6	Class II aaRS and biotin synthetases	LigPlot
4YRS	Download	Experimental	e4yrsA2	Class II aaRS and biotin synthetases	LigPlot
4YP0	Download	Experimental	e4yp0A1	Class II aaRS and biotin synthetases	LigPlot
4YRO	Download	Experimental	e4yroA1	Class II aaRS and biotin synthetases	LigPlot
4YRE	Download	Experimental	e4yreA1 e4yreB2	Class II aaRS and biotin synthetases Class II aaRS and biotin synthetases	LigPlot
4YRI	Download	Experimental	e4yriA1	Class II aaRS and biotin synthetases	LigPlot
4YRM	Download	Experimental	e4yrmA1 e4yrmB1	Class II aaRS and biotin synthetases Class II aaRS and biotin synthetases	LigPlot
4YPF	Download	Experimental	e4ypfA1	Class II aaRS and biotin synthetases	LigPlot
4YRF	Download	Experimental	e4yrfA1	Class II aaRS and biotin synthetases	LigPlot
4YRT	Download	Experimental	e4yrtA2	Class II aaRS and biotin synthetases	LigPlot
4YRC	Download	Experimental	e4yrcA2	Class II aaRS and biotin synthetases	LigPlot
4YRJ	Download	Experimental	e4yrjA2	Class II aaRS and biotin synthetases	LigPlot
4YRL	Download	Experimental	e4yrlA2	Class II aaRS and biotin synthetases	LigPlot
4YRK	Download	Experimental	e4yrkA1 e4yrkB1	Class II aaRS and biotin synthetases Class II aaRS and biotin synthetases	LigPlot
4YRQ	Download	Experimental	e4yrqA1	Class II aaRS and biotin synthetases	LigPlot
4YRG	Download	Experimental	e4yrgA1	Class II aaRS and biotin synthetases	LigPlot