Information on EC 2.1.3.10 - malonyl-S-ACP:biotin-protein carboxyltransferase

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The expected taxonomic range for this enzyme is: Malonomonas rubra

EC NUMBER
COMMENTARY hide
2.1.3.10
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RECOMMENDED NAME
GeneOntology No.
malonyl-S-ACP:biotin-protein carboxyltransferase
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REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a malonyl-[acyl-carrier protein] + a biotinyl-[protein] = an acetyl-[acyl-carrier protein] + a carboxybiotinyl-[protein]
show the reaction diagram
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PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
malonate degradation II (biotin-dependent)
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SYSTEMATIC NAME
IUBMB Comments
malonyl-[acyl-carrier protein]:biotinyl-[protein] carboxytransferase
Derived from the components MadC and MadD of the anaerobic bacterium Malonomonas rubra, this enzyme is a component of EC 4.1.1.89, biotin-dependent malonate decarboxylase. The carboxy group is transferred from malonate to the prosthetic group of the biotin protein (MadF) with retention of configuration [2]. Similar to EC 4.1.1.87, malonyl-S-ACP decarboxylase, which forms part of the biotin-independent malonate decarboxylase (EC 4.1.1.88), this enzyme also follows on from EC 2.3.1.187, acetyl-S-ACP:malonate ACP transferase, and results in the regeneration of the acetyl-[acyl-carrier protein] [3].
CAS REGISTRY NUMBER
COMMENTARY hide
80700-20-5
multienzyme complex malonate decarboxylase
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
enzyme is part of the Na+-activied malonate decarboxylase system
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Manually annotated by BRENDA team
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
acetyl-CoA + dephospho-CoA
CoA + acetyl-dephospho-CoA
show the reaction diagram
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r
malonyl-CoA + dephospho-CoA
CoA + malonyl-dephospho-CoA
show the reaction diagram
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r
additional information
?
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enzyme catalyzes the transfer of acyl carrier protein from acetyl acyl carrier protein and malonate to yield malonyl acyl carrier protein and acetate. Malonate is thus activated on the enzyme by exchange for the catalytically important enzyme-bound acetyl thioester residues
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NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
acetyl-CoA + dephospho-CoA
CoA + acetyl-dephospho-CoA
show the reaction diagram
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-
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r
malonyl-CoA + dephospho-CoA
CoA + malonyl-dephospho-CoA
show the reaction diagram
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r
additional information
?
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enzyme catalyzes the transfer of acyl carrier protein from acetyl acyl carrier protein and malonate to yield malonyl acyl carrier protein and acetate. Malonate is thus activated on the enzyme by exchange for the catalytically important enzyme-bound acetyl thioester residues
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INHIBITORS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
malonate
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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
54
acetate
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pH 6.0
6.9
acetyl-CoA
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pH 6.0
0.5
malonate
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pH 6.0
1.9
malonyl-CoA
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pH 6.0
Ki VALUE [mM]
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
3
citrate
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pH 6.0
0.4
malonate
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pH 6.0
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4.5
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sharp decrease in activity from pH 5.5 to pH 4.5
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
59000
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gel filtration
67000
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1 * 67000, SDS-PAGE
SUBUNITS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
monomer
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1 * 67000, SDS-PAGE
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
purification of subunit acetyl-S-acyl carrier protein: malonate acyl carrier protein-SH transferase
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