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Results 1 - 10 of 19 > >>
EC Number
Metals/Ions
Commentary
Reference
Cu2+
-
Fe2+
20-25% stimulation
Fe2+
a di-iron center in cofactor cytochrome b5; a di-iron center in cofactor cytochrome b5
Fe2+
contains a non-heme iron
Fe2+
contains one atom of non-heme iron per enzyme molecule, catalytic function
Fe2+
each subunit of homodimer contains one binuclear non-heme iron active site. The reduced DELTA9-desaturase has two approximately equivalent 5-coordinate irons in a distorted square pyramidal geometry, a two-in-two-out equatorial distortion, the irons are rhombic, weakly antiferromagnetically coupled. Addition of substrate causes dramatic changes, first ion remains 5-coordinate but is distorted toward a trigonal bipyramidal structure, second iron changes to 4-coordinate
Fe2+
heme and non-heme iron
Fe2+
iron-sulfur protein(s) may act as electron carrier(s) in place of the cytchrome b5 and NADH cytochrome b5 reductase system associated with the mammalian desaturase systems
Fe2+
required for activity
Results 1 - 10 of 19 > >>