$Gene_Ontology ; GO:0003673 %molecular_function ; GO:0003674, GO:0005554 ; synonym:molecular function unknown %proteasome regulator activity ; GO:0010860 %antioxidant activity ; GO:0016209 %auxiliary transport protein activity ; GO:0015457 %binding ; GO:0005488 ; synonym:ligand %alcohol binding ; GO:0043178 %amide binding ; GO:0033218 %amine binding ; GO:0043176 %amino acid binding ; GO:0016597 %antigen binding ; GO:0003823 ; synonym:antibody ; synonym:B cell receptor activity ; synonym:immunoglobulin ; synonym:opsonin activity %bacterial binding ; GO:0008367 ; synonym:bacterium binding ; synonym:binding to bacterium %carbohydrate binding ; GO:0030246 ; synonym:cell adhesion molecule activity ; synonym:cell adhesion receptor activity ; synonym:selectin %carboxylic acid binding ; GO:0031406 %cell surface binding ; GO:0043498 %chromatin binding ; GO:0003682 ; synonym:lamin/chromatin binding ; synonym:microtubule/chromatin interaction ; synonym:nuclear membrane vesicle binding to chromatin %cofactor binding ; GO:0048037 %drug binding ; GO:0008144 %extracellular matrix binding ; GO:0050840 ; synonym:adhesive extracellular matrix constituent ; synonym:extracellular matrix constituent binding %hormone binding ; GO:0042562 %host cell surface binding ; GO:0046812 %ion binding ; GO:0043167 ; synonym:atom binding %isoprenoid binding ; GO:0019840 %lipid binding ; GO:0008289 %metal cluster binding ; GO:0051540 %molecular adaptor activity ; GO:0060090 %neurotransmitter binding ; GO:0042165 %nucleic acid binding ; GO:0003676 %nucleobase binding ; GO:0002054 %nucleoside binding ; GO:0001882 %nucleotide binding ; GO:0000166 %odorant binding ; GO:0005549 %oxygen binding ; GO:0019825 ; Reactome:4477 ; synonym:cytochrome P450 ; synonym:cytochrome P450 activity %pattern binding ; GO:0001871 ; synonym:pattern recognition activity %peptide binding ; GO:0042277 %phthalate binding ; GO:0035273 %pigment binding ; GO:0031409 %protein binding ; GO:0005515, GO:0045308 ; Reactome:6125 ; synonym:alpha-2 macroglobulin receptor-associated protein activity ; synonym:calcium-dependent cell adhesion molecule activity ; synonym:calcium-independent cell adhesion molecule activity ; synonym:cell adhesion molecule activity ; synonym:death receptor adaptor protein activity ; synonym:death receptor interacting protein activity ; synonym:death receptor-associated factor activity ; synonym:glycine receptor-associated protein ; synonym:N-methyl-D-aspartate receptor-associated protein activity ; synonym:nicotinic acetylcholine receptor-associated protein activity ; synonym:protein amino acid binding ; synonym:protein degradation tagging activity ; synonym:protein tagging activity ; synonym:receptor-associated protein activity %ribonucleoprotein binding ; GO:0043021 ; synonym:RNP binding %steroid binding ; GO:0005496 %tetrapyrrole binding ; GO:0046906 ; synonym:porphyrin binding %vitamin binding ; GO:0019842 %water binding ; GO:0050824 %catalytic activity ; GO:0003824 ; synonym:enzyme activity %catalysis of free radical formation ; GO:0043364 ; synonym:catalysis of free radical generation ; synonym:catalysis of free-radical biosynthesis ; synonym:catalysis of free-radical formation ; synonym:catalysis of free-radical generation %cyclase activity ; GO:0009975 %deaminase activity ; GO:0019239 %demethylase activity ; GO:0032451 %glycogen debranching enzyme activity ; GO:0004133 %helicase activity ; GO:0004386 ; Reactome:7001 %hydrolase activity ; GO:0016787 ; EC:3 ; Reactome:450 %deacetylase activity ; GO:0019213 %peptidase activity ; GO:0008233 ; EC:3.4.-.- ; synonym:hydrolase\, acting on peptide bonds ; synonym:peptide hydrolase ; synonym:protease ; synonym:proteasome endopeptidase activity %integrase activity ; GO:0008907 %isomerase activity ; GO:0016853 ; EC:5 ; synonym:other isomerase activity %ligase activity ; GO:0016874 ; EC:6 %lyase activity ; GO:0016829 ; EC:4 ; synonym:other lyase activity %oxidoreductase activity ; GO:0016491 ; EC:1 ; synonym:oxidoreductase activity\, acting on other substrates ; synonym:redox activity %dioxygenase activity ; GO:0051213 %electron carrier activity ; GO:0009055 ; Reactome:20046 ; synonym:2Fe-2S electron transfer carrier ; synonym:3Fe-4S/4Fe-4S electron transfer carrier ; synonym:adrenodoxin-type ferredoxin ; synonym:amicyanin ; synonym:azurin ; synonym:bacterial-type ferredoxin ; synonym:chloroplast-type ferredoxin ; synonym:copper electron carrier ; synonym:dicluster bacterial-type ferredoxin ; synonym:electron carrier\, chlorophyll electron transport system ; synonym:electron transfer flavoprotein ; synonym:electron transfer flavoprotein\, group I ; synonym:electron transfer flavoprotein\, group II ; synonym:electron transporter activity ; synonym:high-potential iron-sulfur carrier ; synonym:iron-sulfur electron transfer carrier ; synonym:monocluster bacterial-type ferredoxin ; synonym:mononuclear iron electron carrier ; synonym:polyferredoxin ; synonym:redox-active disulfide bond electron carrier ; synonym:rubredoxin ; synonym:small blue copper electron carrier ; synonym:thioredoxin-like 2Fe-2S ferredoxin %monooxygenase activity ; GO:0004497 %site-specific recombinase activity ; GO:0009009 %small protein activating enzyme activity ; GO:0008641, GO:0008642 ; synonym:ubiquitin-like activating enzyme activity %small protein conjugating enzyme activity ; GO:0008639, GO:0008640 ; synonym:E2 ; synonym:ubiquitin-like conjugating enzyme activity %RNA splicing factor activity, transesterification mechanism ; GO:0031202 %transferase activity ; GO:0016740 ; EC:2 %transposase activity ; GO:0004803 %chemoattractant activity ; GO:0042056 ; synonym:attractant %chemorepellent activity ; GO:0045499 ; synonym:chemorepellent activity %enzyme regulator activity ; GO:0030234 ; synonym:enzyme modulator %metallochaperone activity ; GO:0016530 %molecular transducer activity ; GO:0060089 %energy transducer activity ; GO:0031992 ; synonym:light harvesting activity ; synonym:photon capture %signal transducer activity ; GO:0004871 ; synonym:SAP kinase 3 activity ; synonym:SAP kinase 4 activity ; synonym:SAP kinase 5 activity %motor activity ; GO:0003774 %nutrient reservoir activity ; GO:0045735 ; synonym:storage protein ; synonym:storage protein of fat body (sensu Insecta) ; synonym:yolk protein %obsolete molecular function ; GO:0008369 %protein tag ; GO:0031386 ; synonym:protein tagging activity ; synonym:ubiquitin %structural molecule activity ; GO:0005198 ; synonym:colicin ; synonym:pore-forming toxin activity ; synonym:puparial glue (sensu Diptera) ; synonym:yolk protein %transcription regulator activity ; GO:0030528 ; synonym:transcriptional regulator activity %translation regulator activity ; GO:0045182 %transporter activity ; GO:0005215, GO:0005478 ; Reactome:1391 ; synonym:peroxisomal membrane transporter ; synonym:small-molecule carrier or transporter