Assertion: chloroplast's protein | /r/HasAspect | their transit peptides
Facets:
Source sentences:
text: Most nucleus-encoded proteins enter the organelle post-translationally via the TOC (translocon at the outer envelope membrane of chloroplasts)–TIC (translocon at the inner envelope membrane of chloroplasts) machinery, and have their transit peptides removed by the stromal processing peptidase (SPP) upon arrival.