Date published: 2025-12-19

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MSR Activators

The chemical class termed MSR Activators encompasses a range of compounds that can enhance the activity of the enzyme Methionine Synthase Reductase (MSR). This class is characterized by its ability to modulate various biochemical pathways that intersect with the function of MSR, contributing to the maintenance and efficient functioning of methionine synthesis and the wider methylation cycle. The activation of MSR by these compounds is achieved through the optimization of substrate availability, cofactor interaction, and stabilization of the enzyme, as well as through the modulation of associated metabolic pathways. These activators ensure that MSR is provided with the necessary constituents to perform its catalytic role in the regeneration of methionine from homocysteine, a process that is essential for maintaining homocysteine levels within a normal range and for the production of S-adenosylmethionine, a critical methyl donor in numerous methylation reactions within the cell.

Within this chemical class, compounds can also act by influencing the cellular redox state, thus indirectly supporting the reductive activation cycle of MSR. The importance of this class lies in its ability to facilitate the electron transfer processes that are vital for MSR's function. By maintaining the reduced state of cofactors and the enzyme itself, these activators can assure that MSR operates at its optimal capacity. Furthermore, these compounds can enhance MSR activity by promoting the stabilization of enzyme structure and enzyme-cofactor interactions, which are critical for MSR's activity. Collectively, these activators play a pivotal role in the upkeep of a functional methionine cycle, ensuring that methionine regeneration proceeds efficiently, which in turn supports a myriad of methylation-dependent cellular processes.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Ademetionine

29908-03-0sc-278677
sc-278677A
100 mg
1 g
$180.00
$655.00
2
(1)

SAMe is a cosubstrate involved in methyl group transfers. By donating methyl groups and facilitating the remethylation process that MSR is a part of, SAMe could possibly activate MSR by ensuring a continuous supply of methionine.

Folic Acid

59-30-3sc-204758
10 g
$72.00
2
(1)

Folic acid is a precursor in the production of tetrahydrofolate (THF). An increase in THF could possibly activate MSR by enhancing the availability of substrates for the folate cycle and methionine regeneration.

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
$39.00
$55.00
$204.00
$877.00
$3414.00
$9180.00
2
(1)

Cobalamin is a necessary cofactor for MSR, required for the reactivation of methionine synthase. Ensuring adequate levels of cobalamin could possibly activate MSR by maintaining the enzyme in a functional state.

Betaine

107-43-7sc-214595
sc-214595A
sc-214595B
sc-214595C
sc-214595D
sc-214595E
50 g
100 g
250 g
1 kg
2.5 kg
5 kg
$30.00
$40.00
$55.00
$160.00
$330.00
$580.00
2
(1)

Betaine donates a methyl group to homocysteine to form methionine. This donation could possibly activate MSR by reducing the homocysteine load and supporting the methionine cycle.

Riboflavin

83-88-5sc-205906
sc-205906A
sc-205906B
25 g
100 g
1 kg
$40.00
$110.00
$515.00
3
(1)

Riboflavin is essential for the production of FAD and FMN, involved in redox reactions. Adequate riboflavin could possibly activate MSR by maintaining reduced flavoproteins necessary for MSR function.

Zinc

7440-66-6sc-213177
100 g
$47.00
(0)

Zinc stabilizes protein structures and acts as a cofactor for enzymes. Zinc could possibly activate MSR by enhancing the stability of MSR and its interaction with methionine synthase.

Pyridoxal-5-phosphate

54-47-7sc-205825
5 g
$102.00
(1)

Pyridoxal phosphate is a cofactor for amino acid metabolism enzymes. Adequate levels could possibly activate MSR by improving the metabolism of homocysteine and supporting the methionine cycle.

L-Methionine

63-68-3sc-394076
sc-394076A
sc-394076B
sc-394076C
sc-394076D
sc-394076E
25 g
100 g
250 g
1 kg
5 kg
10 kg
$33.00
$36.00
$56.00
$148.00
$566.00
$1081.00
(0)

Methionine levels could possibly activate MSR by feedback-regulating homocysteine levels and thus influencing the methionine cycle in which MSR operates.

Creatine, anhydrous

57-00-1sc-214774
sc-214774A
10 mg
50 g
$27.00
$77.00
2
(0)

Creatine could possibly activate MSR by influencing SAMe consumption for its synthesis, which may help balance SAMe levels and support MSR activity within the methionine cycle.

N-Acetyl-L-cysteine

616-91-1sc-202232
sc-202232A
sc-202232C
sc-202232B
5 g
25 g
1 kg
100 g
$33.00
$73.00
$265.00
$112.00
34
(1)

NAC could possibly activate MSR by providing cysteine for glutathione, affecting the cellular redox state, which, in turn, may impact the oxidation state of methionine synthase's cobalamin cofactor and MSR activity.