Protein families

• AAA ATPase family
• ABCF ATPase subfamily
• Acetyltransferase family
• Alpha/beta-type SASP family
• Amino acid-polyamine-organocation (APC) superfamily
• Carbohydrate kinase PfkB family
• Cation diffusion facilitator (CDF) transporter (TC 2.A.4) family
• Cation transport ATPase (P-type) (TC 3.A.3) family
• CitM transporter family (TC 2.A.11)
• Class-I aminoacyl-tRNA synthetase family
• Class-II aminoacyl-tRNA synthetase family
• Class-I pyridoxal-phosphate-dependent aminotransferase family
• Class-II pyridoxal-phosphate-dependent aminotransferase family
• Class-IV pyridoxal-phosphate-dependent aminotransferase family
• Class-V pyridoxal-phosphate-dependent aminotransferase family
• CysTW subfamily
• Cytidine and deoxycytidylate deaminase family
• Dicarboxylate/amino acid:cation symporter (DAACS) (TC 2.A.23) family
• Fur family
• Glycosyl hydrolase 13 family
• Glycosyl hydrolase 18 family
• Glycosyltransferase 1 family
• Glycosyltransferase 2 family
• Helicase family
• Isochorismatase family
• LacI family
• Major facilitator superfamily
• Membrane fusion protein (MFP) (TC 8.A.1) family
• MerR family
• Metallo-beta-lactamase superfamily
• Metallo-dependent hydrolases superfamily
• Metallophosphoesterase superfamily
• Methyltransferase superfamily
• MscS (TC 1.A.23) family
• N-acetylmuramoyl-L-alanine amidase 2 family
• NAD(P)-dependent epimerase/dehydratase family
• Peptidase S8 family
• Peptidase S11 family
• Peptidase S26 family
• Peptidase C40 family
• Peptidase S54 family
• Peroxiredoxin family
• Phage integrase family
• Polysaccharide deacetylase family
• PRD-containing transcription factors
• Protein kinase superfamily
• PSMR family
• Purine/pyrimidine phosphoribosyltransferase family
• Radical SAM superfamily
• S-transferase-like (STL) superfamily
• SEDS proteins
• Site-specific recombinase resolvase family
• small heat shock protein (Hsp20) family
• Sodium:galactoside symporter (TC 2.A.2) family
• SOS response-associated peptidase family
• Sugar phosphate cyclases superfamily
• TerC family
• 4-toluene sulfonate uptake permease (TSUP) (TC 2.A.102) family
• Transferase hexapeptide repeat family
• UPF0702 family
• UPF0750 membrane proteins
• Zinc-containing alcohol dehydrogenase family