Involved in chlorophyll biosynthesis. Catalyzes the insertion of magnesium ion into protoporphyrin IX to yield Mg-protoporphyrin IX. The magnesium-chelatase is a complex of three subunits, CHLI, CHLD and CHLH. The reaction takes place in two steps, with an ATP-dependent activation followed by an ATP-dependent chelation step (By similarity).

Belongs to the Mg-chelatase subunits D/I family.

355 amino acids

MNATITTSEQARPVFPFTAIVGQEEMKLALLLNVIDPKIGGVMIMGDRGTGKSTTVRALVDLLPEIEVVENDPFNSHPYDPELMSDEVREKVHRGESIRTTTTKIPMVDLPLGATEDRVCGTIDIEKALTEGVKAFEPGLLAKANRGILYVDEVNLLDDHLVDVLLDSAASGWNTVEREGISICHPARFILVGSGNPEEGELRPQLLDRFGMHAQIGTVREPELRVKIVEQRATFDENPKEFRQSYETSQASLTSQLTEARARLRQVQTDYSLRVKISQVCSELNVDGLRGDIVTNRAAKALAALEGRTSVSVEDIGRIITLCLRHRLRKDPLESIDSGEKVQEVFSIVFGTNPL

39.2 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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