Number of proteins found: 64
| Protein | RCA Class | Species | Function(s) |
|---|---|---|---|
| ADAR1 | dsRBD-containing protein | Xaenopus laevis | antiviral defense; deamination of adenosines in double stranded and structured RNAs |
| CspA | Cold shock domain-containing protein | Escherichia coli | cold shock protein; transcription regulation |
| CspB | Cold shock domain-containing protein | Bacillus subtilis | cold shock protein |
| CspC | Cold shock domain-containing protein | Bacillus subtilis | cold shock protein |
| CspD | Cold shock domain-containing protein | Bacillus subtilis | cold shock protein |
| CspE | Cold shock domain-containing protein | Escherichia coli | cold shock protein |
| Cyp55 | Orphan RC | Arabidopsis thaliana | cyclophilin-RNA interacting protein |
| DdRBP1 | Orphan RC | Dictyostelium discoideum | unknown |
| DnaX | Orphan RC | Escherichia coli | DNA polymerase III subunit tau |
| eIF-4B | Orphan RC | Homo sapiens | binding of mRNA to ribosomes |
| FinO | Orphan RC | Escherichia coli | facilitation of sense-antisense RNA interactions |
| FMRP | Orphan RC | Homo sapiens | transport of mRNA from the nucleus to the cytoplasm |
| FUS | Orphan RC | Homo sapiens | maintenance of genomic integrity; oncogene |
| gBP21 | Orphan RC | Trypanosoma brucei | RNP editing complex |
| H-NS (Eco) | Bacterial histone-like protein | Escherichia coli | global transcriptional regulator; histone-like nucleoid structuring |
| H-NS (Hin) | Bacterial histone-like protein | Haemophilus influenzae | global transcriptional regulator; histone-like nucleoid structuring |
| HCV core protein | Viral nucleocapsid | Hepatitis C virus type 1b | formation of the internal viral coat that encapsidates the genomic RNA |
| HDAg | Viral nucleocapsid | Hepatitis delta virus | viral replication |
| Hfq | SM-like protein | Escherichia coli | multiple roles in RNA metabolism |
| hnRNP A1 | hnRNP | Homo sapiens | mRNA export; pre-mRNA processing; RNA binding protein |
| hnRNP C1/C2 | hnRNP | Homo sapiens | ribonucleosome assembly |
| hnRNP I | hnRNP | Homo sapiens | RNA binding protein |
| hnRNP K | hnRNP | Homo sapiens | involvement in gene expression mechanisms |
| hnRNP L | hnRNP | Homo sapiens | RNA stability; splicing activator |
| hnRNP U | hnRNP | Homo sapiens | Scaffold attachment factor A |
| IF1 | Cold shock domain-containing protein | Escherichia coli | translation initiation |
| L1 (Cel) | Ribosomal protein | Caenorhabditis elegans | 60S subunit assembly; primary binding protein |
| L1 (Eco) | Ribosomal protein | Escherichia coli | 50S subunit assembly; primary binding protein; translational repressor of its own mRNA |
| L1 (Hsa) | Ribosomal protein | Homo sapiens | 60S subunit assembly |
| L1 (Mma) | Ribosomal protein | Methanococcus maripaludis | Large ribosomal subunit assembly |
| L1 (Mva) | Ribosomal protein | Methanococcus vannielii | Large ribosomal subunit assembly; translational repressor of its own mRNA |
| L1 (Mvo) | Ribosomal protein | Methanococcus voltae | Large ribosomal subunit assembly |
| L1 (Sce) | Ribosomal protein | Saccharomyces cerevisiae | 60S subunit assembly |
| L1 (Tth) | Ribosomal protein | Thermus thermophilus | 50S subunit assembly; primary binding protein |
| L1 ORF1p | Viral nucleocapsid | Mus musculus | retrotransposition |
| L13 | Ribosomal protein | Escherichia coli | 50S subunit assembly; subunit assembly |
| L15 | Ribosomal protein | Escherichia coli | 50S subunit assembly; binding of 5S rRNA; subunit assembly |
| L16 | Ribosomal protein | Escherichia coli | 50S subunit assembly; direct binding to 23S ribosomal RNA; subunit assembly |
| L18 | Ribosomal protein | Escherichia coli | 50S subunit assembly; attachment of the 5S rRNA |
| L19 | Ribosomal protein | Escherichia coli | 50S subunit assembly; located at the 30S-50S ribosomal subunit interface |
| L22 | Ribosomal protein | Escherichia coli | 50S subunit assembly; specific binding to 23S rRNA |
| L24 | Ribosomal protein | Escherichia coli | 50S subunit assembly; assembly inititator protein |
| L3 | Ribosomal protein | Escherichia coli | 50S subunit assembly; assembly inititator protein; primary binding protein |
| La autoantigen | Orphan RC | Homo sapiens | stabilization of RNA polymerase III transcripts |
| Ltp26 | Orphan RC | Leishmania tarentolae | editing-complex binding protein; RNA annealing |
| Ltp28 | Orphan RC | Leishmania tarentolae | editing-complex binding protein; RNA annealing |
| NCp7 | Viral nucleocapsid | Human immunodeficiency virus 1 | several functions in virus replication |
| Nucleolin | Orphan RC | Homo sapiens | pre-rRNA transcription; ribosome assembly |
| p50 | Cold shock domain-containing protein | Oryctolagus cuniculus | general translational regulation |
| Prion Protein | Orphan RC | Homo sapiens | physiological function not known |
| PSF | Orphan RC | Homo sapiens | PTB-associated splicing factor |
| putative ORF1 | Orphan RC | Drosophila melanogaster | retrotransposition |
| Retrotransposon Ty3 NCp9 | Orphan RC | Saccharomyces cerevisiae | retrotransposition |
| Ro60 | SM-like protein | Homo sapiens | RNA binding component of Ro RNPs |
| S1 | Ribosomal protein | Escherichia coli | ribosomal protein |
| S12 | Ribosomal protein | Escherichia coli | translation initiation |
| SF2 | Orphan RC | Homo sapiens | splicing accuracy |
| StpA | Bacterial histone-like protein | Escherichia coli | DNA-binding protein; global transcriptional regulator |
| TMV-MP | Orphan RC | Tobacco mosaic virus | cell-to-cell movement during viral infection |
| TYA1 | Orphan RC | Saccharomyces cerevisiae | retrotransposition |
| U2AF65 | Orphan RC | Homo sapiens | export of mRNA; splicing of pre-mRNA |
| Xlrbpa | dsRBD-containing protein | Xaenopus laevis | association with ribosomal particles and hnRNPs |
| YB-1 | Cold shock domain-containing protein | Homo sapiens | transcription regulation |
| Yra1 | hnRNP | Saccharomyces cerevisiae | export of poly(A)+ mRNA; member of the REF family |
