The CHLI1 Subunit of Arabidopsis thaliana Magnesium Chelatase Is a Target Protein of the Chloroplast Thioredoxin

• Published in: The Journal of biological chemistry Vol. 282; no. 27; pp. 19282 - 19291
• Main Authors: Ikegami, Akinori, Yoshimura, Naho, Motohashi, Ken, Takahashi, Shigekazu, Romano, Patrick G.N., Hisabori, Toru, Takamiya, Ken-ichiro, Masuda, Tatsuru
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 06.07.2007; American Society for Biochemistry and Molecular Biology
• Subjects: Adenosine Triphosphatases - metabolism; Adenosine Triphosphate - metabolism; Arabidopsis - metabolism; Arabidopsis Proteins - metabolism; Chlorophyll - biosynthesis; Chloroplasts - metabolism; Cysteine - metabolism; Ferrochelatase - metabolism; Hydrolysis; Magnesium - metabolism; Oxidation-Reduction; Photosynthesis - physiology; Protein Isoforms - metabolism; Protein Structure, Secondary; Protein Structure, Tertiary - physiology; Protein Subunits - metabolism; Proteomics; Protoporphyrins; Thioredoxins - metabolism

Insertion of magnesium into protoporphyrin IX by magnesium chelatase is a key step in the chlorophyll biosynthetic pathway, which takes place in plant chloroplasts. ATP hydrolysis by the CHLI subunit of magnesium chelatase is an essential component of this reaction, and the activity of this enzyme i...