InterPro domain: IPR037471

Preproteins are imported into chloroplasts through the translocon complexes of the outer (TOC) and inner (TIC) envelope membranes [ 1 ]. The TIC translocon consists of Tic56, together with Tic20, Tic100,and Tic214 [ 2 ]. Tic56 mutant plants have an albino phenotype, but protein import in Tic56 mutant plants is functional to a considerable degree [ 3 ].

1. Stable megadalton TOC-TIC supercomplexes as major mediators of protein import into chloroplasts. Plant J. 92, 178-188
2. The TIC complex uncovered: The alternative view on the molecular mechanism of protein translocation across the inner envelope membrane of chloroplasts. Biochim. Biophys. Acta 1847, 957-67
3. Characterization of chloroplast protein import without Tic56, a component of the 1-megadalton translocon at the inner envelope membrane of chloroplasts. Plant Physiol. 167, 972-90