Table 1.
RBP families in Arabidopsis chloroplasts and mitochondria
| Protein family | Number of proteins targeted to chloroplastsa | Number of proteins targeted to mitochondriaa | References |
|---|---|---|---|
| Pentatricopeptide repeat (PPR) proteins | 106 | 328 | Supplemental Table S4 in Lurin et al. (2004) |
| Chloroplast RNA splicing and ribosome maturation (CRM)—proteins | 10 | 5 | Barkan et al. (2007) and Zhang et al. (2021) |
| Whirly (WHY)-proteins | 2 | 1 | Prikryl et al. (2008) |
| Plant organellar RNA recognition (PORR)-proteins | 3 | 11 | Kroeger et al. (2009) andFrancs-Small et al. (2012) |
| DUF794/APO1 | 2 | 2 | Watkins et al. (2011) |
| cpRNPs—chloroplast ribonucleoproteins (10) | 10 | 0 | Ruwe et al. (2011) |
| RNA recognition motif proteins (non-cpRNPs) | 13 | 10 | Ruwe et al. (2011) |
| Dead box helicases | 11 | 8 | Bobik et al. (2017) and Nawaz and Kang (2017) |
| RNAse III-like: RNC1 | 1 | 0 | Watkins et al. (2007) |
| Peptidyl-tRNA hydrolase: CRS2 | 1 | 0 | Jenkins and Barkan (2001) |
| Ribosome-release factors: | 3 | 0 | Stoppel et al. (2011) |
| Tetratricopeptide repeat protein binding RNA (R-TPR)/HCF107 | 1 | 0 | Sane et al. (2005) and Hammani et al. (2012) |
| Mitochondrial transcription termination factor (mTERF)—proteins | 12 | 10 | Kleine (2012) and Robles and Quesada (2021) |
| K-homology (KH) domain proteins | 3 | 1 | SUBA |
| All RBP | 185 | 276 |
Number of proteins is based on SUBA-predictions (Hooper et al. 2014), which incorporate mass-spec. data as well as microscopic localizations. In addition, numbers from references indicated in the last column are considered as well.