CMP-N-acetylneuraminate monooxygenase

Last updated
CMP-N-acetylneuraminate monooxygenase
Identifiers
EC no. 1.14.18.2
CAS no. 116036-67-0
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, a CMP-N-acetylneuraminate monooxygenase (EC 1.14.18.2) is an enzyme that catalyzes the chemical reaction

CMP-N-acetylneuraminate + 2 ferrocytochrome b5 + O2 + 2 H+ CMP-N-glycoloylneuraminate + 2 ferricytochrome b5 + H2O

The 4 substrates of this enzyme are CMP-N-acetylneuraminate, ferrocytochrome b5, O2, and H+, whereas its 3 products are CMP-N-glycoloylneuraminate, ferricytochrome b5, and H2O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derived from O2 with another compound as one donor, and incorporation of one atom o oxygen into the other donor. The systematic name of this enzyme class is CMP-N-acetylneuraminate,ferrocytochrome-b5:oxygen oxidoreductase (N-acetyl-hydroxylating). Other names in common use include CMP-N-acetylneuraminic acid hydroxylase, CMP-Neu5Ac hydroxylase, cytidine monophosphoacetylneuraminate monooxygenase, N-acetylneuraminic monooxygenase, and cytidine-5'-monophosphate-N-acetylneuraminic acid hydroxylase. This enzyme participates in aminosugars metabolism.

Related Research Articles

Cytochrome b<sub>5</sub>

Cytochromes b5 are ubiquitous electron transport hemoproteins found in animals, plants, fungi and purple phototrophic bacteria. The microsomal and mitochondrial variants are membrane-bound, while bacterial and those from erythrocytes and other animal tissues are water-soluble. The family of cytochrome b5-like proteins includes hemoprotein domains covalently associated with other redox domains in flavocytochrome cytochrome b2, sulfite oxidase, plant and fungal nitrate reductases, and plant and fungal cytochrome b5/acyl lipid desaturase fusion proteins.

In enzymology, a 24-hydroxycholesterol 7alpha-hydroxylase (EC 1.14.13.99) is an enzyme that catalyzes the chemical reaction

In enzymology, a 3-hydroxybenzoate 4-monooxygenase (EC 1.14.13.23) is an enzyme that catalyzes the chemical reaction

In enzymology, a 3-hydroxybenzoate 6-monooxygenase (EC 1.14.13.24) is an enzyme that catalyzes the chemical reaction

In enzymology, a 5beta-cholestane-3alpha,7alpha-diol 12alpha-hydroxylase (EC 1.14.13.96) is an enzyme that catalyzes the chemical reaction

In enzymology, an alkane 1-monooxygenase (EC 1.14.15.3) is an enzyme that catalyzes the chemical reactions

In enzymology, a benzoate 4-monooxygenase (EC 1.14.14.92, Formerly EC 1.14.13.12) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Camphor 5-monooxygenase</span>

In enzymology, a camphor 5-monooxygenase (EC 1.14.15.1) is an enzyme that catalyzes the chemical reaction

In enzymology, a cholestanetriol 26-monooxygenase (EC 1.14.13.15) is an enzyme that catalyzes the chemical reaction

Ecdysone 20-monooxygenase (EC 1.14.99.22) is an enzyme that catalyzes the chemical reaction

In enzymology, juglone 3-monooxygenase (EC 1.14.99.27) is an enzyme that catalyzes the chemical reaction

In enzymology, a Δ7-sterol 5(6)-desaturase is an enzyme that catalyzes the chemical reaction

In enzymology, a lithocholate 6beta-hydroxylase (EC 1.14.13.94) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">L-lysine 6-monooxygenase (NADPH)</span> Class of enzymes

In enzymology, a L-lysine 6-monooxygenase (NADPH) (EC 1.14.13.59) is an enzyme that catalyzes the chemical reaction

In enzymology, a peptidylglycine monooxygenase (EC 1.14.17.3) is an enzyme that catalyzes the chemical reaction

In enzymology, a steroid 11beta-monooxygenase (EC 1.14.15.4) is an enzyme that catalyzes the chemical reaction

In enzymology, a trans-cinnamate 2-monooxygenase (EC 1.14.13.14) is an enzyme that catalyzes the chemical reaction

In enzymology, a trans-cinnamate 4-monooxygenase (EC 1.14.14.91) is an enzyme that catalyzes the chemical reaction

In enzymology, an unspecific monooxygenase (EC 1.14.14.1) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">CMAH</span> Pseudogene in the species Homo sapiens

Cytidine monophospho-N-acetylneuraminic acid hydroxylase (Cmah) is an enzyme that is encoded by the CMAH gene. In most mammals, the enzyme hydroxylates N-acetylneuraminic acid (Neu5Ac), producing N-glycolylneuraminic acid (Neu5Gc). Neu5Ac and Neu5Gc are mammalian glycans that compose the glycocalyx, especially in sialoglycoproteins, which are part of the sialic acid family. The CMAH equivalent in humans is a pseudogene (CMAHP); there is no detectable Neu5Gc in normal human tissue. This deficiency has a number of proposed effects on humans, including increased brain growth and improved self-recognition by the human immune system. Incorporation of Neu5Gc from red meat and dairy into human tissues has been linked to chronic disease, including type-2 diabetes and chronic inflammation.

References