Date published: 2026-5-30

1-800-457-3801

SCBT Portrait Logo
Seach Input

MCEE Activators

Chemical activators of Methylmalonyl-CoA epimerase (MCEE) facilitate its enzymatic role within the metabolic pathway concerned with propionyl-CoA catabolism. Acetyl-CoA is pivotal in this context as it donates an acetyl group necessary for the activation of MCEE, enabling the enzyme to catalyze the conversion of L-methylmalonyl-CoA to its D-isomer. This reaction is essential for the utilization of certain amino acids and fatty acids. Furthermore, the presence of NAD+ is crucial for the dehydrogenase enzymes that generate substrates for MCEE, ensuring a steady flow of metabolites for MCEE to process. Biotin, as a carboxylase cofactor, is involved in the production of propionyl-CoA, subsequently converted to methylmalonyl-CoA, the substrate upon which MCEE acts. This indirect support by biotin ensures the availability of substrate necessary for MCEE's function.

In concert with other elements of the metabolic pathway, Vitamin B12, specifically in the form of adenosylcobalamin, is a cofactor for L-methylmalonyl-CoA mutase, which operates in tandem with MCEE by processing the same substrates. By facilitating the function of this mutase, adenosylcobalamin ensures a continued supply of substrates for MCEE. The downstream product of MCEE's reaction, succinyl-CoA, plays a part in feedback mechanisms that can enhance the enzyme's activity. Additionally, Cobalt(II) chloride can stabilize the structure of B12-dependent enzymes, thereby indirectly augmenting the production of MCEE substrates. The proper turnover of 5'-deoxyadenosine, a byproduct of these B12-dependent reactions, is indicative of a well-functioning pathway, which is necessary for MCEE activity. Lastly, ATP and magnesium chloride are general activators of metabolic processes; ATP supplies the energy for enzymatic actions, while magnesium acts as a cofactor for enzymes that generate MCEE substrates, thus playing a role in the activation of MCEE.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Acetyl coenzyme A trisodium salt

102029-73-2sc-210745
sc-210745A
sc-210745B
1 mg
5 mg
1 g
$47.00
$92.00
$5826.00
3
(3)

Acetyl-CoA donates an acetyl group to MCEE in the metabolic pathway of propionyl-CoA catabolism, which is an essential step for the activation of MCEE enzymatic function in the breakdown of certain amino acids and fatty acids. This action provides the necessary substrate for MCEE to catalyze its reaction, thereby functionally activating MCEE.

NAD+, Free Acid

53-84-9sc-208084B
sc-208084
sc-208084A
sc-208084C
sc-208084D
sc-208084E
sc-208084F
1 g
5 g
10 g
25 g
100 g
1 kg
5 kg
$57.00
$191.00
$302.00
$450.00
$1800.00
$3570.00
$10710.00
4
(2)

NAD+ serves as a cofactor for dehydrogenases that are upstream in the metabolic pathway that produces substrates for MCEE. By ensuring the continuation of these dehydrogenation reactions, NAD+ indirectly ensures the flow of metabolites that require MCEE for their processing, thus supporting the activation of MCEE.

D-(+)-Biotin

58-85-5sc-204706
sc-204706A
sc-204706B
1 g
5 g
25 g
$41.00
$107.00
$333.00
1
(4)

As a cofactor for carboxylases, biotin is essential for the formation of propionyl-CoA from D-methylmalonyl-CoA, a substrate that MCEE acts upon. By supporting this conversion, biotin indirectly supports the activation of MCEE by ensuring the availability of its substrate.

Vitamin B12

68-19-9sc-296695
sc-296695A
sc-296695B
sc-296695C
sc-296695D
sc-296695E
100 mg
1 g
5 g
25 g
100 g
1 kg
$60.00
$90.00
$325.00
$1155.00
$3851.00
$10056.00
2
(1)

Vitamin B12 is a cofactor for methylmalonyl-CoA mutase, which converts methylmalonyl-CoA to succinyl-CoA, a reaction closely associated with the one catalyzed by MCEE. By ensuring the proper functioning of this mutase, vitamin B12 indirectly sustains the flux of metabolites through the pathway that includes MCEE, thereby supporting MCEE activation.

Cobalt(II) chloride

7646-79-9sc-252623
sc-252623A
5 g
100 g
$64.00
$176.00
7
(1)

Cobalt(II) chloride is known to stabilize the cobalamin-dependent enzymes by mimicking the cobalt present in the B12 cofactor. The stabilization of these enzymes can enhance the production of MCEE substrates, thereby promoting MCEE activation indirectly.

ADP

58-64-0sc-507362
5 g
$54.00
(0)

ATP provides the energy required for many metabolic processes, including the activation of enzymes through phosphorylation or as a substrate for ATP-dependent ligases, which might be involved in the pathway of MCEE. Thus, ATP availability is critical for maintaining the metabolic flux that necessitates MCEE activation.

Magnesium chloride

7786-30-3sc-255260C
sc-255260B
sc-255260
sc-255260A
10 g
25 g
100 g
500 g
$28.00
$35.00
$48.00
$125.00
2
(1)

Magnesium acts as a cofactor for many enzymes, including those that may produce or use substrates for MCEE. By activating these enzymes, magnesium chloride can indirectly promote the activation of MCEE by ensuring the flow of necessary substrates within the metabolic pathway that MCEE is part of.