GO:0005515	protein binding	165
GO:0043167	ion binding	83
GO:0003676	nucleic acid binding	53
GO:0000166	nucleotide binding	50
GO:0016787	hydrolase activity	49
GO:0005198	structural molecule activity	25
GO:0016740	transferase activity	23
GO:0030234	enzyme regulator activity	21
GO:0008289	lipid binding	16
GO:0005215	transporter activity	15
GO:0009055	electron transfer activity	7
GO:0003682	chromatin binding	7
GO:0060090	molecular adaptor activity	6
GO:0060089	molecular transducer activity	3
GO:0030246	carbohydrate binding	3
GO:0031386	protein tag	3
GO:0016209	antioxidant activity	3
GO:0045182	translation regulator activity	2
