Methylmalonyl-CoA

Methylmalonyl-CoA

Identifiers
CAS number	1264-45-5
PubChem	123909
MeSH	methylmalonyl-coenzyme+A
Properties
Molecular formula	C₂₅H₄₀N₇O₁₉P₃S
Molar mass	867.608 g/mol
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Methylmalonyl-CoA is the coenzyme A linked form of methylmalonic acid. Methylmalonyl-CoA is formed from propionyl-CoA by propionyl-CoA carboxylase by help of biotin (vitamin B₇). It is converted into succinyl-CoA by methylmalonyl-CoA mutase, in a reaction that requires vitamin B₁₂ as a cofactor. In this way, it enters the Krebs cycle, and is thus part of one of the anaplerotic reactions. The following diagram demonstrates the aforementioned reactions:

Propionyl CoA → Methylmalonyl CoA → Succinyl CoA ^[1]

References

^ Hoffbrand,A.V., Moss, P.A.H, Pettit, J.E. Essential Haematology. Blackwell publishing. 5th Ed. 2006. p. 46 [1]

lysine→	Saccharopine · Allysine · α-Aminoadipic acid · α-Aminoadipate · Glutaryl-CoA · Glutaconyl-CoA · Crotonyl-CoA · β-Hydroxybutyryl-CoA

leucine→	α-Ketoisocaproic acid · Isovaleryl-CoA · 3-Methylcrotonyl-CoA · 3-Methylglutaconyl-CoA · HMG-CoA

tryptophan→alanine→	N'-Formylkynurenine · Kynurenine · Anthranilic acid · 3-Hydroxykynurenine · 3-Hydroxyanthranilic acid · 2-Amino-3-carboxymuconic semialdehyde · 2-Aminomuconic semialdehyde · 2-Aminomuconic acid · Glutaryl-CoA

glycine→serine→	3-Phosphoglyceric acid glycine→creatine: Glycocyamine · Phosphocreatine · Creatinine

histidine→	Urocanic acid · Imidazol-4-one-5-propionic acid · Formiminoglutamic acid · Glutamate-1-semialdehyde

proline→	1-Pyrroline-5-carboxylic acid

arginine→	Ornithine · Putrescine · Agmatine

other	cysteine+glutamate→glutathione: γ-Glutamylcysteine

valine→	α-Ketoisovaleric acid · Isobutyryl-CoA · Methacrylyl-CoA · 3-Hydroxyisobutyryl-CoA · 3-Hydroxyisobutyric acid · 2-Methyl-3-oxopropanoic acid

isoleucine→	2,3-Dihydroxy-3-methylpentanoic acid · 2-Methylbutyryl-CoA · Tiglyl-CoA · 2-Methylacetoacetyl-CoA

methionine→	generation of homocysteine: S-Adenosyl methionine · S-Adenosyl-L-homocysteine · Homocysteine conversion to cysteine: Cystathionine · alpha-Ketobutyric acid+Cysteine

threonine→	α-Ketobutyric acid

propionyl-CoA→	Methylmalonyl-CoA


phenylalanine→tyrosine→	4-Hydroxyphenylpyruvic acid · Homogentisic acid · 4-Maleylacetoacetate

see urea cycle

Other


Cysteine metabolism	Cysteine sulfinic acid

mt, k, c/g/r/p/y/i, f/h/s/l/o/e, a/u, n, m

k, cgrp/y/i, f/h/s/l/o/e, au, n, m, epon

m(A16/C10),i(k, c/g/r/p/y/i, f/h/s/o/e, a/u, n, m)

biochemical families: prot · nucl · carb (glpr, alco, glys) · lipd (fata/i, phld, strd, gllp, eico) · amac/i · ncbs/i · ttpy/i