| A [auth c] | IPR020103 | Pseudouridine synthase, catalytic domain superfamily | Homologous Superfamily |
| A [auth c] | IPR041708 | Pseudouridine synthase PUS1/ PUS2-like | Family |
| A [auth c] | IPR001406 | Pseudouridine synthase I, TruA | Family |
| A [auth c] | IPR020095 | Pseudouridine synthase I, TruA, C-terminal | Homologous Superfamily |
| A [auth c] | IPR020094 | Pseudouridine synthase TruA/RsuA/RluB/E/F, N-terminal | Homologous Superfamily |
| A [auth c] | IPR020097 | Pseudouridine synthase I, TruA, alpha/beta domain | Domain |
| IPR000851 | Small ribosomal subunit protein uS5 | Family |
| IPR048584 | Small ribosomal subunit protein uS5m, N-terminal domain | Domain |
| IPR005324 | Small ribosomal subunit protein uS5, C-terminal | Domain |
| IPR013810 | Small ribosomal subunit protein uS5, N-terminal | Domain |
| IPR020568 | Ribosomal protein uS5 domain 2-type superfamily | Homologous Superfamily |
| IPR018192 | Small ribosomal subunit protein uS5, N-terminal, conserved site | Conserved Site |
| IPR014721 | Small ribosomal subunit protein uS5 domain 2-type fold, subgroup | Homologous Superfamily |
| IPR000529 | Small ribosomal subunit protein bS6 | Family |
| IPR035980 | Small ribosomal subunit protein bS6 superfamily | Homologous Superfamily |
| IPR014717 | Translation elongation factor EF1B/small ribosomal subunit protein bS6 | Homologous Superfamily |
| F [auth I] | IPR001971 | Small ribosomal subunit protein uS11 | Family |
| F [auth I] | IPR036967 | Small ribosomal subunit protein uS11 superfamily | Homologous Superfamily |
| F [auth I] | IPR018102 | Small ribosomal subunit protein uS11, conserved site | Conserved Site |
| G [auth J] | IPR006032 | Small ribosomal subunit protein uS12 | Family |
| G [auth J] | IPR005679 | Ribosomal protein uS12, bacteria | Family |
| G [auth J] | IPR012340 | Nucleic acid-binding, OB-fold | Homologous Superfamily |
| H [auth L] | IPR009068 | uS15/NS1, RNA-binding domain superfamily | Homologous Superfamily |
| H [auth L] | IPR000589 | Small ribosomal subunit protein uS15 | Family |
| H [auth L] | IPR005290 | Small ribosomal subunit protein uS15, bacteria | Family |
| H [auth L] | IPR052137 | Universal small ribosomal subunit uS15 | Family |
| I [auth M] | IPR023803 | Small ribosomal subunit protein bS16 domain superfamily | Homologous Superfamily |
| I [auth M] | IPR000307 | Small ribosomal subunit protein bS16 | Family |
| J [auth N] | IPR039193 | Small ribosomal subunit protein uS17m, metazoa | Family |
| J [auth N] | IPR012340 | Nucleic acid-binding, OB-fold | Homologous Superfamily |
| J [auth N] | IPR000266 | Small ribosomal subunit protein uS17 | Family |
| K [auth O] | IPR040054 | Small ribosomal subunit protein mS40 | Family |
| K [auth O] | IPR001648 | Small ribosomal subunit protein bS18 | Family |
| K [auth O] | IPR036870 | Small ribosomal subunit protein bS18 superfamily | Homologous Superfamily |
| L [auth P] | IPR001648 | Small ribosomal subunit protein bS18 | Family |
| L [auth P] | IPR018275 | Small ribosomal subunit protein bS18, conserved site | Conserved Site |
| L [auth P] | IPR036870 | Small ribosomal subunit protein bS18 superfamily | Homologous Superfamily |
| M [auth Q] | IPR038380 | Small ribosomal subunit protein bS21 superfamily | Homologous Superfamily |
| M [auth Q] | IPR001911 | Small ribosomal subunit protein bS21 | Family |
| N [auth R] | IPR019374 | Small ribosomal subunit protein mS22 | Family |
| O [auth S] | IPR059242 | Small ribosomal subunit protein mS23, conserved domain | Domain |
| O [auth S] | IPR019520 | Small ribosomal subunit protein mS23, metazoa | Family |
| O [auth S] | IPR023611 | Small ribosomal subunit protein mS23, conserved domain, metazoa | Domain |
| P [auth T] | IPR007741 | Ribosomal protein/NADH dehydrogenase domain | Domain |
| P [auth T] | IPR036249 | Thioredoxin-like superfamily | Homologous Superfamily |
| P [auth T] | IPR040049 | Ribosomal subunit protein mS25/mL61, mitochondrial | Family |
| Q [auth U] | IPR026140 | Small ribosomal subunit protein mS26 | Family |
| R [auth V] | IPR011990 | Tetratricopeptide-like helical domain superfamily | Homologous Superfamily |
| R [auth V] | IPR002885 | Pentatricopeptide repeat | Repeat |
| R [auth V] | IPR019266 | Small ribosomal subunit protein mS27 | Family |
| R [auth V] | IPR034913 | mS27/PTCD2 | Family |
| S [auth W] | IPR019375 | Small ribosomal subunit protein bS1m | Family |
| T [auth 0] | IPR032053 | Small ribosomal subunit protein mS34 | Family |
| U [auth 3] | IPR013177 | Ribosomal protein bS22, C-terminal | Domain |
| V [auth b] | IPR029063 | S-adenosyl-L-methionine-dependent methyltransferase superfamily | Homologous Superfamily |
| V [auth b] | IPR002903 | Ribosomal RNA small subunit methyltransferase H | Family |
| V [auth b] | IPR023397 | S-adenosyl-L-methionine-dependent methyltransferase, MraW, recognition domain superfamily | Homologous Superfamily |
| W [auth a] | IPR015946 | K homology domain-like, alpha/beta | Homologous Superfamily |
| W [auth a] | IPR039212 | Ribosome-binding factor A, mitochondrial | Family |
| W [auth a] | IPR020053 | Ribosome-binding factor A, conserved site | Conserved Site |
| W [auth a] | IPR023799 | Ribosome-binding factor A domain superfamily | Homologous Superfamily |
| W [auth a] | IPR000238 | Ribosome-binding factor A | Family |
| X [auth 4] | IPR037387 | Pentatricopeptide repeat domain-containing protein 3 | Family |
| X [auth 4] | IPR011990 | Tetratricopeptide-like helical domain superfamily | Homologous Superfamily |
| X [auth 4] | IPR002885 | Pentatricopeptide repeat | Repeat |
| X [auth 4] | IPR055063 | Small ribosomal subunit protein mS39, PPR | Repeat |
| Y [auth H] | IPR027486 | Small ribosomal subunit protein uS10 domain | Domain |
| Y [auth H] | IPR040055 | Small ribosomal subunit protein uS10m | Family |
| Y [auth H] | IPR036838 | Small ribosomal subunit protein uS10 domain superfamily | Homologous Superfamily |
| Z [auth 1] | IPR039848 | Small ribosomal subunit protein mS35, mitochondrial | Family |
| Z [auth 1] | IPR019349 | Small ribosomal subunit protein mS35, mitochondrial, conserved domain | Domain |
| AA [auth Z] | IPR013219 | Small ribosomal subunit protein mS33 | Family |
| BA [auth X] | IPR019368 | Small ribosomal subunit protein mS29 | Family |
| BA [auth X] | IPR008092 | Small ribosomal subunit protein mS29, metazoa | Family |
| BA [auth X] | IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| CA [auth K] | IPR001209 | Small ribosomal subunit protein uS14 | Family |
| DA [auth Y] | IPR026299 | Mitochondrial 28S ribosomal protein S31 | Family |
| EA [auth G] | IPR020574 | Small ribosomal subunit protein uS9, conserved site | Conserved Site |
| EA [auth G] | IPR023035 | Small ribosomal subunit protein uS9, bacteria/plastid | Family |
| EA [auth G] | IPR020568 | Ribosomal protein uS5 domain 2-type superfamily | Homologous Superfamily |
| EA [auth G] | IPR000754 | Small ribosomal subunit protein uS9 | Family |
| EA [auth G] | IPR014721 | Small ribosomal subunit protein uS5 domain 2-type fold, subgroup | Homologous Superfamily |
| FA [auth F] | IPR036823 | Small ribosomal subunit protein uS7 domain superfamily | Homologous Superfamily |
| FA [auth F] | IPR000235 | Small ribosomal subunit protein uS7 | Family |
| FA [auth F] | IPR023798 | Small ribosomal subunit protein uS7 domain | Domain |
| GA [auth C] | IPR026146 | Small ribosomal subunit protein uS3m, metazoan | Family |
| HA [auth 9] | IPR030378 | Circularly permuted (CP)-type guanine nucleotide-binding (G) domain | Domain |
| HA [auth 9] | IPR052807 | Mitochondrial translation and respiration regulator | Family |
| HA [auth 9] | IPR006073 | GTP binding domain | Domain |
| HA [auth 9] | IPR048422 | NOA1/YqeH-like, C-terminal domain | Domain |
| HA [auth 9] | IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Homologous Superfamily |
| C [auth B] | IPR005706 | Small ribosomal subunit protein uS2, bacteria/mitochondria/plastid | Family |
| C [auth B] | IPR023591 | Small ribosomal subunit protein uS2, flavodoxin-like domain superfamily | Homologous Superfamily |
| C [auth B] | IPR018130 | Small ribosomal subunit protein uS2, conserved site | Conserved Site |
| C [auth B] | IPR001865 | Small ribosomal subunit protein uS2 | Family |