Biotin carboxylase

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biotin carboxylase
Identifiers
EC number 6.3.4.14
CAS number 9075-71-2
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 / EGO
Biotin carboxylase C-terminal domain
PDB 1w96 EBI.jpg
crystal structure of biotin carboxylase domain of acetyl-coenzyme a carboxylase from saccharomyces cerevisiae in complex with soraphen a
Identifiers
Symbol Biotin_carb_C
Pfam PF02785
InterPro IPR005482
SCOP 1dv1
SUPERFAMILY 1dv1

In enzymology, a biotin carboxylase (EC 6.3.4.14) is an enzyme that catalyzes the chemical reaction

ATP + biotin-carboxyl-carrier protein + CO2 \rightleftharpoons ADP + phosphate + carboxybiotin-carboxyl-carrier protein

The 3 substrates of this enzyme are ATP, biotin-carboxyl-carrier protein, and CO2, whereas its 3 products are ADP, phosphate, and carboxybiotin-carboxyl-carrier protein.

This enzyme belongs to the family of ligases, specifically those forming generic carbon-nitrogen bonds. The systematic name of this enzyme class is biotin-carboxyl-carrier-protein:carbon-dioxide ligase (ADP-forming). This enzyme is also called biotin carboxylase (component of acetyl CoA carboxylase). This enzyme participates in fatty acid biosynthesis.

A C-terminal conserved domain within this enzyme contains most of the active site residues.[1]

Structural studies[edit]

As of late 2007, 5 structures have been solved for this class of enzymes, with PDB accession codes 1BNC, 1DV1, 1DV2, 2GPS, and 2GPW.

References[edit]

  1. ^ Waldrop, G. L.; Rayment, I.; Holden, H. M. (1994). "Three-dimensional structure of the biotin carboxylase subunit of acetyl-CoA carboxylase". Biochemistry 33 (34): 10249–10256. doi:10.1021/bi00200a004. PMID 7915138.  edit

Further reading[edit]