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Literature summary for 5.4.99.2 extracted from

  • Retey, J.
    Methylmalonyl-CoA mutase (1982), B12 (Dolphin, D. ed. ) Wiley, New York, 2, 357-379.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
NEM
-
Mammalia
p-hydroxymercuribenzoate
-
Mammalia

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0345
-
succinyl-CoA
-
Propionibacterium freudenreichii subsp. shermanii
0.062
-
succinyl-CoA
-
Ovis aries
0.085
-
(R)-2-methyl-3-oxopropanoyl-CoA
-
Propionibacterium freudenreichii subsp. shermanii
0.24
-
(R)-2-methyl-3-oxopropanoyl-CoA
-
Ovis aries

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
61000
-
1 * 61000 + 1 * 66000, SDS-PAGE Propionibacterium freudenreichii subsp. shermanii
66000
-
1 * 61000 + 1 * 66000, SDS-PAGE Propionibacterium freudenreichii subsp. shermanii
122000 124000 gel filtration, calculation from sedimentation and diffusion data Propionibacterium freudenreichii subsp. shermanii
165000
-
determination from sedimentation data Ovis aries

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
(R)-2-Methyl-3-oxopropanoyl-CoA Ovis aries key position in metabolism of propionic acid ?
-
?
Succinyl-CoA Propionibacterium freudenreichii subsp. shermanii production of propionate from succinate ?
-
?

Organism

Organism UniProt Comment Textmining
Mammalia
-
-
-
Ovis aries
-
-
-
Propionibacterium freudenreichii subsp. shermanii
-
strain 52W and strain St 33
-

Purification (Commentary)

Purification (Comment) Organism
-
Ovis aries
-
Propionibacterium freudenreichii subsp. shermanii

Reaction

Reaction Comment Organism Reaction ID
(R)-methylmalonyl-CoA = succinyl-CoA mechanism Ovis aries
(R)-methylmalonyl-CoA = succinyl-CoA mechanism Propionibacterium freudenreichii subsp. shermanii

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Ovis aries
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Ovis aries
additional information
-
-
Propionibacterium freudenreichii subsp. shermanii

Storage Stability

Storage Stability Organism
-10°C, enzyme from strain 52 W is quite stable, the enzyme from strain St 33 is much less so Propionibacterium freudenreichii subsp. shermanii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(R)-2-Methyl-3-oxopropanoyl-CoA
-
Propionibacterium freudenreichii subsp. shermanii ?
-
?
(R)-2-Methyl-3-oxopropanoyl-CoA key position in metabolism of propionic acid Ovis aries ?
-
?
(R)-2-methylmalonyl-CoA
-
Mammalia succinyl-CoA
-
?
(R)-2-methylmalonyl-CoA
-
Ovis aries succinyl-CoA
-
?
(R)-2-methylmalonyl-CoA
-
Propionibacterium freudenreichii subsp. shermanii succinyl-CoA
-
?
Succinyl-CoA production of propionate from succinate Propionibacterium freudenreichii subsp. shermanii ?
-
?

Subunits

Subunits Comment Organism
dimer 1 * 61000 + 1 * 66000, SDS-PAGE Propionibacterium freudenreichii subsp. shermanii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Ovis aries
7.4
-
-
Propionibacterium freudenreichii subsp. shermanii

Cofactor

Cofactor Comment Organism Structure
Coalpha(alpha-Benzimidazolyl)-Cobeta-adenosyl-cobamide can serve as coenzyme Propionibacterium freudenreichii subsp. shermanii
Coalpha-(alpha-Purinyl)-Cobeta-adenosylcobamide can serve as coenzyme Propionibacterium freudenreichii subsp. shermanii
Coalpha-Hydroxo-Cobeta-adenosylcobinamide can serve as coenzyme Propionibacterium freudenreichii subsp. shermanii
Coalpha[alpha-(Aden-7-yl)]-Cobeta-adenosyl-cobamide can serve as coenzyme Propionibacterium freudenreichii subsp. shermanii
cobamide
-
Mammalia
cobamide adenosylcobalamin protects the apoenzyme from inactivation by NEM or iodoacetamide. Km: 0.000021 mM Ovis aries
cobamide one molecule of enzyme contains about 2 molecules of adenosylcobalamin Ovis aries
cobamide Km: 0.000035 mM Propionibacterium freudenreichii subsp. shermanii