Acetyl-CoA carboxytransferase

Acetyl-CoA carboxytransferase
The enzyme as folded by AlphaFold
Identifiers
EC no.2.3.1.253
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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NCBIproteins

Acety-CoA carboxytransferase (known also as accAD and N6-carboxybiotinyl-L-lysine:acetyl-CoA:carboxytransferase) is a transferase enzyme that catalyses the transfer of a carboxyl group from a biotinylated biotin carboxyl carrier protein (abbrev. BCCP) to acetyl-CoA (acetyl-Coenzyme A), yielding malonyl-CoA.[1] In some species, this is part of a multi-domain protein that also has the carrier protein as well as biotin carboxylase. Some enzymes can also carry out the carboxylation of propanonyl-CoA and butanoyl-CoA.[2] The enzyme catalyzes the following reaction,

N6-carboxybiotinylysyl + acetyl-CoA = N6-biotinylysyl + malonyl-CoA

The enzyme is involved in several biochemical pathways, including the 3-hydroxypropanoate cycle, 4-hydroxybutanate cycle, the assembly of biotin-carboxyl carrier proteins, candicidin biosynthesis, fatty acid biosynthesis and glyoxylate assimilation.[3]

References

  1. ^ "ENZYME entry: EC 2.1.3.15". Expasy. 2025. Retrieved 26 April 2025.
  2. ^ "EC 2.1.3.15". iubmb-qmul. Queen Mary University, London. 2025. Retrieved 26 April 2025.
  3. ^ "ENZYME entry: EC 2.1.3.15". KEGG. 2025. Retrieved 26 April 2025.