Protein families
- Amino acid-polyamine-organocation (APC) superfamily
- CitM transporter family (TC 2.A.11)
- Class-I pyridoxal-phosphate-dependent aminotransferase family
- Class-IV pyridoxal-phosphate-dependent aminotransferase family
- Class-V pyridoxal-phosphate-dependent aminotransferase family
- Dicarboxylate/amino acid:cation symporter (DAACS) (TC 2.A.23) family
- Glycosyl hydrolase 13 family
- LacI family
- Major facilitator superfamily
- Peptidase S8 family
- Peptidase S26 family
- Peroxiredoxin family
- Polysaccharide deacetylase family
- PRD-containing transcription factors
- PSMR family
- S-transferase-like (STL) superfamily
- SEDS proteins
- Site-specific recombinase resolvase family
- Sodium:galactoside symporter (TC 2.A.2) family
- TerC family
- UPF0750 membrane proteins
- Zinc-containing alcohol dehydrogenase family
