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ENZYME entry: EC 4.99.1.10

Accepted Name
Magnesium dechelatase.
Alternative Name(s)
Mg-dechelatase.
Reaction catalysed
  • Chlorophyll a + 2 H(+) <=> pheophytin a + Mg(2+)
  • Chlorophylide a + 2 H(+) <=> pheophorbide a + Mg(2+)
Comment(s)
  • SGR has very low activity with chlorophyllide a and none with chlorophyll b.
  • It acts on chlorophyll a both in its free form and in protein complex.
  • SGRL, on the other hand, is more active with chlorophyllide a than with chlorophyll a.
  • The magnesium formed is scavenged by MCS (metal-chelating substance).
Cross-references
BRENDA4.99.1.10
EC2PDB4.99.1.10
ExplorEnz4.99.1.10
PRIAM enzyme-specific profiles4.99.1.10
KEGG Ligand Database for Enzyme Nomenclature4.99.1.10
IUBMB Enzyme Nomenclature4.99.1.10
IntEnz4.99.1.10
MEDLINEFind literature relating to 4.99.1.10
MetaCyc4.99.1.10
UniProtKB/Swiss-Prot
O82741, SGR1_ARATH;  Q66WT5, SGR2_ARATH;  Q94AQ9, SGRL_ARATH;  

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