Research progress on the function of the thylakoid lumen proteins in chloroplasts

Abstract

[Objective] Thylakoids are the important sites where photosynthesis takes place. The thylakoid membrane envelops form a central aqueous region known as the thylakoid lumen. There are various types of proteins residing in thylakoid lumen, including high chlorophyll fluorescence (HCF) proteins, immunophilins, oxygen-evolving complex (OEC) proteins, and PsbP-like proteins, etc. These proteins are considered to play important roles during various physiological processes, such as photosynthesis, nucleotide metabolism, and redox regulation. [Reviews] This review summarized the function of the thylakoid lumen proteins involved in photosynthesis regulation, such as photosystem assembly, growth regulation, and excess light stress response. [Prospect] The review provided the theoretical reference for future study on the physiological function of the thylakoid lumen proteins.

Keywords

• chloroplast
• thylakoid lumen protein
• photosynthesis