5978 Reference proteome 
 1418 Membrane 
 1303 Transmembrane 
 1266 Transmembrane helix 
 738 Signal 
 520 Transferase 
 474 Plasmid 
 457 Coiled coil 
 410 Reference proteome
 372 Cell membrane 
 366 Metal-binding 
 364 Hydrolase 
 363 Nucleotide-binding 
 356 Transport 
 332 ATP-binding 
 322 Oxidoreductase 
 304 DNA-binding 
 195 Cytoplasm 
 185 Phosphoprotein 
 162 Iron 
 158 Transcription 
 153 Transcription regulation 
 153 Cell inner membrane 
 151 Lipoprotein 
 151 Cytoplasm
 129 Kinase 
 124 Lyase 
 105 Transferase
 104 Magnesium 
 87 Nucleotide-binding