Magnesium (Mg) chelatase is a heterotrimeric enzyme complex that catalyzes a key
regulatory and enzymatic reaction in chlorophyll biosynthesis, the insertion of Mg2+ into …

Oryza sativa GUN4 together with the magnesium chelatase subunits ChlI, ChlD, and ChlH
have been heterologously expressed and purified to reconstitute magnesium chelatase …

During biosynthesis of bacteriochlorophyll or chlorophyll, three protein subunits of 140, 70,
and 42 kDa interact to insert Mg2+ into protoporphyrin IX. The semidominant Chlorina-125 …

Two chlorophyll-deficient mutants of Chlamydomonas reinhardtii, chl1 and brs-1, are light
sensitive and, when grown heterotrophically in the dark, accumulate protoporphyrin IX and …

The first step of chlorophyll biosynthesis is catalyzed by a Mg-chelatase composed of the
subunits CHLI, CHLD and CHLH. Mg-chelatase requires ATP hydrolysis that can be …

We have isolated and sequenced a cDNA from Arabidopsis thaliana cv C24 that encodes a
putative Mg chelatase subunit. The deduced amino acid sequence shows a very high level …

Mg-insertion is the first committed step in chlorophyll synthesis and is catalyzed by Mg-
chelatase. In photosynthetic bacteria, bchI gene product was suggested to be a subunit of …

Photosynthetic organisms exhibit a green color due to the accumulation of chlorophyll
pigments in chloroplasts. Mg-protoporphyrin IX chelatase (Mg-chelatase) comprises three …

The I subunit of magnesium-chelatase (CHLI) is encoded by two genes in Arabidopsis
(Arabidopsis thaliana), CHLI1 and CHLI2. Conflicting results have been reported concerning …

Mg‐protoporphyrin IX chelatase catalyzes insertion of the magnesium ion into
protoporphyrin IX, the last common intermediate precursor in chlorophyll and heme …