• molecular_function (GO:0003674) #8429
• [i] binding (GO:0005488) #15249
• [i] ion binding (GO:0043167) #27
• [i] cation binding (GO:0043169) #1922
• [i] metal ion binding (GO:0046872) #31882
• [i] transition metal ion binding (GO:0046914) #707
• [i] iron ion binding (GO:0005506) #11177
• [i] ferrous iron binding (GO:0008198) #68
• [i] ferric iron binding (GO:0008199) #157
• [i] iron chaperone activity (GO:0034986) #0

GOC:

ai

• transition metal ion binding (GO:0046914)

• ferrous iron binding (GO:0008198)
• ferric iron binding (GO:0008199)
• iron chaperone activity (GO:0034986)