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Joined 2026-09-21 Message
Incoming links: Inner chloroplast envelope membrane
Chloroplast envelope 2026-10-18
The double boundary formed by the outer chloroplast envelope membrane and inner chloroplast envelope membrane.[ref]
Chloroplast stroma Created 2026-10-13 Updated 2026-10-18
The chloroplast stroma is the fluid compartment inside the inner chloroplast envelope membrane and outside thylakoids, containing Calvin cycle enzymes.[ref]
A chloroplast stroma location is therefore more informative than an unspecified “inside the chloroplast” location. In the boundary model above, entering chloroplast stroma has not yet entered thylakoid lumen. Protein targeting must distinguish these destinations; a fraction containing chloroplasts does not establish which internal compartment contains a detected protein.