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Involved in delta pH-dependent protein transport required for chloroplast development, especially thylakoid membrane formation. TATC and TATB mediate precursor recognition, whereas TATA facilitates translocation"}],"commentType":"FUNCTION"},{"texts":[{"evidences":[{"evidenceCode":"ECO:0000269","source":"PubMed","id":"11502764"},{"evidenceCode":"ECO:0000269","source":"PubMed","id":"11956224"},{"evidenceCode":"ECO:0000269","source":"PubMed","id":"14653819"},{"evidenceCode":"ECO:0000269","source":"PubMed","id":"19207210"},{"evidenceCode":"ECO:0000269","source":"PubMed","id":"22564412"}],"value":"In thylakoid membranes, TATC and TATB form a large receptor complex, containing about eight TATC-TATB pairs, which binds the precursor protein. Twin arginine signal peptide promotes pH-triggered docking of TATA oligomers to TATC-TATB receptor complex, inducing a conformational switch of TATA that results in activation of the translocase. TATA dissociates from TATC-TATB upon completion of translocation. According to PubMed:22564412, it is estimated that the translocase fully saturated with precursor proteins and TATA is an 2.2-megadalton complex that can individually transport eight precursor proteins or cooperatively transport multimeric precursors"}],"commentType":"SUBUNIT"},{"commentType":"SUBCELLULAR LOCATION","note":{"texts":[{"value":"The N-terminus is located in the stroma"}]},"subcellularLocations":[{"location":{"evidences":[{"evidenceCode":"ECO:0000305","source":"PubMed","id":"11457457"},{"evidenceCode":"ECO:0000305","source":"PubMed","id":"14653819"},{"evidenceCode":"ECO:0000305","source":"PubMed","id":"19207210"},{"evidenceCode":"ECO:0000305","source":"PubMed","id":"22564412"}],"value":"Plastid, chloroplast thylakoid 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