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1.14.14.18: heme oxygenase (biliverdin-producing)

This is an abbreviated version!
For detailed information about heme oxygenase (biliverdin-producing), go to the full flat file.

Word Map on EC 1.14.14.18

Reaction

protoheme
+ 3 [reduced NADPH-hemoprotein reductase] + 3 O2 =
Biliverdin
+
Fe2+
+
CO
+ 3 [oxidized NADPH-hemoprotein reductase] + 3 H2O

Synonyms

biliverdin-producing heme oxygenase, ChuS, ChuZ, EC 1.14.99.3, haem oxygenase, heme oxygenase, heme oxygenase 1, heme oxygenase 2, heme oxygenase-1, heme oxygenase-2, HemO, Hmox1, Hmox1a, Hmox1b, Hmox2, Hmox2a, Hmox2b, HmuO, Hmx1, HO, HO-1, HO-2, Ho1, Ho2, Ho3, HO4, HSP32, HugZ, HY1, inducible heme oxygenase-1, More, MsHO1, ORP33 proteins, oxygenase, heme (decyclizing), pbsA1, PigA, proteins, specific or class, ORP33 (oxygen-regulated protein 33,000-mol.-wt.), Syn HO-1, Syn HO-2

ECTree

     1 Oxidoreductases
         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
             1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
                1.14.14.18 heme oxygenase (biliverdin-producing)

Temperature Stability

Temperature Stability on EC 1.14.14.18 - heme oxygenase (biliverdin-producing)

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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0 - 4
35
-
liver heme oxygenase-1: 65-70% activity after 10 min at 60°C, testis heme oxygenase-2: 20% activity after 10 min at 60°C
54 - 56
melting temperature, wild-type and mutants H26A/K34A/K132A and N19K/K34A/F117Y/K132A
60
-
5 min, complete loss of activity
65
-
10 min, 30% loss of heme oxygenase-1 activity, 80% loss of heme oxygenase-2 activity
90
-
15 min, 95% loss of activity, crude extract