Magnesium chelatase, ATPase subunit I (IPR011775)

Short name: Mg_chelatase_ATPase-isu

Overlapping homologous superfamilies

Family relationships



This entry represents one of two ATPase subunits of the trimeric magnesium chelatase responsible for insertion of magnesium ion into protoporphyrin IX. This is an essential step in the biosynthesis of both chlorophyll and bacteriochlorophyll [PMID: 7892204]. This subunit is found in green plants, photosynthetic algae, cyanobacteria and other photosynthetic bacteria. It is also found in certain archaea not known to make chlorins.

GO terms

Biological Process

GO:0015995 chlorophyll biosynthetic process

Molecular Function

GO:0005524 ATP binding
GO:0016851 magnesium chelatase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.