transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activity drug binding ion binding modified amino acid binding sulfur compound binding cofactor binding amide binding transferase activitytransferase activity drug bindingdrug binding ion bindingion binding modified amino acid modified amino acid binding sulfur compound bindsulfur compound binding cofactor bindingcofactor binding amide bindingamide binding cell organelle cell organelle cell organelle cell organelle cell organelle cell organelle cell organelle cell organelle cell organelle cell organelle cellcell organelleorganelle