| TCID | Name | Domain | Kingdom/Phylum | Protein(s) |
|---|---|---|---|---|
|
3.A.9.1.1 | Chloroplast envelope protein translocase (CEPT); outer membrane complex. The Tic20-like protein (acc # AUO68237.1; 413 aas, 6 TMSs in a 1 TMS (N-terminal) + 5 TMSs (C-terminal)), of the lower brown alga, Saccharina japonica, has been characterized (Chen et al. 2019). The melon necrotic spot virus coat protein exploits the common Toc/Tom import systems to enter both mitochondria and chloroplasts (Sáiz-Bonilla et al. 2023). | Eukaryota |
Viridiplantae, Streptophyta | The Toc (Translocase of the outer chloroplast membrane) complex of Pisum sativum (pea) Toc75 (IAP75; OEP75) (16 β-strand porin) (O43715); Toc(IAP)34/36 (receptor, GTP-binding protein and preprotein-activated GTPase); Toc(IAP)86/159 (major import receptor; GTP-binding protein); Toc(IAP)64 (surface docking protein) The Tic (Translocase of the inner chloroplast membrane) complex of Pisum sativum Tic110 (IAP100; IEP110) (recognizes preproteins; the probable channel; the C-terminal 700 residues form β-stranded cation-selective channels) (O24303); Tic22 (peripheral intermembrane protein); Tic20 (integral membrane protein); Tic55 (possible redox sensor) Tic62 (possible redox sensor) Tic40 (stromal chaperone protein recruiter) hsp70 (stromal ATPase chaperone) OEP80 (P0C891) |
|
3.A.9.1.2 | The chloroplast envelope TIC translocase (TIC) complex. Tic21, Tic20-I, Tic214, Tic100 and Tic56 plus Toc components comprise a 1 Md complex in the membrane with each component being present in stoichiometric amounts (Teng et al. 2006; Kikuchi et al. 2013). A 1-megadalton complex consisting of Tic21, Tic20, Tic56, Tic100, and Tic214 has been identified in the chloroplast inner membrane (Nakai 2015). | Eukaryota |
Viridiplantae, Streptophyta | The Tic complex of Arabidopsis thaliana Tic214 (Ycf1) (1,786aas; 6 N-terminal TMSs) (P56785) Tic100 (871aas) (Q8LPR8) Tic56 (527aas) (Q7Y1Z4) Tic20-I (274aas; 5 TMSs) (Q8GZ79) Tic21 (296 aas; 4 TMSs) (Q9SHU7) Tic40 (447aas) (Q9FMD5) Tic110 (1,061aas; 2 TMSs) (Q8LPR9) TicLTD (175aas) (GDC1) (Q8VY88) ClpC1 Chloroplastic chaperone (929aas) (Q9FI56) ClpC2 Chloroplastic chaperone (952aas) (Q9SXJ7) |
|
3.A.9.1.4 | The 20 component Ycf2-FtsHi chloroplast protein import motor complex: The Ycf2-FtsHi complex functions as a TIC complex-associated ATPase motor in chloroplast protein import. Cryo-EM structure of the native Chlamydomonas reinhardtii Ycf2-FtsHi complex revealed up to 19 or 20 subunits, including conserved heterohexameric motor components and multiple green-algae-specific components (). This offers evolutionary insights into the conservation and diversity of the chloroplast import motor across species.
| Eukaryota |
Viridiplantae, Chlorophyta | The Ycf2-FtsHi complex of Chlamydomonas reinhardtii |