molecular_function
   |__binding
       |__small molecule binding  2197 rec.
           |__2-aminoethylphosphonate binding
           |__acyl binding 1 rec.
           |__alcohol binding 19 rec.
           |   |__11-deoxycorticosterone binding
           |   |__11-deoxycortisol binding
           |   |__17alpha-hydroxyprogesterone binding
           |   |__21-deoxycortisol binding
           |   |__abscisic acid binding
           |   |__cholesterol binding 5 rec.
           |   |__corticosterone binding
           |   |__cortisol binding
           |   |__ecdysone binding 4 rec.
           |   |__ethanol binding
           |   |__hydroxyectoine binding
           |   |__inositol 1,3,4,5 tetrakisphosphate binding
           |   |__inositol 1,4,5 trisphosphate binding 4 rec.
           |   |__inositol hexakisphosphate binding 4 rec.
           |   |__retinol binding(+) 1 rec.
           |   |__thiamine binding 1 rec.
           |__alkene binding
           |   |__ethylene binding
           |__carbon dioxide binding
           |__carbon monoxide binding 1 rec.
           |__heterocyclic compound binding 1029 rec.
           |   |__acyl-CoA binding(+) 13 rec.
           |   |__ADP-D-ribose binding(+)
           |   |__bacteriochlorophyll c binding
           |   |__biotin binding
           |   |__cobalamin binding 1 rec.
           |   |__cocaine binding 1 rec.
           |   |__coenzyme A binding
           |   |__coenzyme F420 binding
           |   |__dethiobiotin binding
           |   |__dihydrofolic acid binding
           |   |__ectoine binding
           |   |__enterobactin binding
           |   |__flavanol binding(+)
           |   |__folic acid binding
           |   |__histamine binding
           |   |__hydroxyectoine binding
           |   |__L-ascorbic acid binding 26 rec.
           |   |__leptomycin B binding
           |   |__lipoic acid binding
           |   |__methotrexate binding
           |   |__nucleobase binding(+) 2 rec.
           |   |__nucleoside binding(+) 6 rec.
           |   |__nucleotide binding(+) 945 rec.
           |   |__penicillin binding
           |   |__proline binding
           |   |__pyrroloquinoline quinone binding
           |   |__riboflavin binding
           |   |__serotonin binding 2 rec.
           |   |__thiamine binding 1 rec.
           |   |__thiamine pyrophosphate binding 5 rec.
           |   |__tryptophan binding
           |   |__vitamin B6 binding(+) 32 rec.
           |   |__vitamin E binding
           |__hydroxyapatite binding
           |__ice binding
           |   |__antifreeze activity
           |   |__ice nucleation activity
           |__ion binding 2068 rec.
           |   |__anion binding(+) 1071 rec.
           |   |__cation binding(+) 1106 rec.
           |__metal cluster binding 51 rec.
           |   |__dinitrosyl-iron complex binding
           |   |__iron-sulfur cluster binding(+) 51 rec.
           |__monosaccharide binding 55 rec.
           |   |__D-glucose binding 5 rec.
           |   |__D-mannose binding 5 rec.
           |   |__fructose binding
           |   |__fucose binding 2 rec.
           |   |__galactose binding 17 rec.
           |   |__L-arabinofuranose binding
           |   |__L-ascorbic acid binding 26 rec.
           |   |__rhamnose binding 1 rec.
           |   |__xylose binding
           |__nitric oxide binding 1 rec.
           |__organic acid binding 40 rec.
           |   |__alkanesulfonate binding(+)
           |   |__carboxylic acid binding(+) 40 rec.
           |   |__suramin binding
           |__oxygen binding 4 rec.
           |__poly(3-hydroxyalkanoate) binding
           |__quaternary ammonium group binding 10 rec.
           |   |__hydroxyectoine binding
           |   |__phosphatidylcholine binding 5 rec.
           |   |__thiamine pyrophosphate binding 5 rec.
           |__quinone binding 9 rec.
           |   |__ubiquinone binding(+) 4 rec.
           |__selenium binding 1 rec.
           |__tetrahydrofolyl-poly(glutamate) polymer binding
           |__urea binding
           |__vitamin binding 73 rec.
               |__biotin binding
               |__cobalamin binding 1 rec.
               |__folic acid binding
               |__L-ascorbic acid binding 26 rec.
               |__phosphopantetheine binding 3 rec.
               |__retinal binding(+) 3 rec.
               |__retinol binding(+) 1 rec.
               |__thiamine binding 1 rec.
               |__thiamine pyrophosphate binding 5 rec.
               |__vitamin B6 binding(+) 32 rec.
               |__vitamin D binding(+)
               |__vitamin E binding