PUBLICATION
Evidence for 26 distinct acyl-coenzyme A synthetase genes in the human genome
- Authors
- Watkins, P.A., Maiguel, D., Jia, Z., and Pevsner, J.
- ID
- ZDB-PUB-100903-3
- Date
- 2007
- Source
- Journal of Lipid Research 48(12): 2736-2750 (Journal)
- Registered Authors
- Keywords
- fatty acid activation, fatty acid metabolism, conserved motifs, bioinformatics, consensus sequence, phylogenetic analysis, structure-function
- MeSH Terms
-
- Amino Acid Motifs
- Amino Acid Sequence
- Coenzyme A Ligases/genetics*
- Genetic Variation
- Genome, Human*
- Humans
- Molecular Sequence Data
- Phylogeny
- Sequence Alignment
- PubMed
- 17762044 Full text @ J. Lipid Res.
Citation
Watkins, P.A., Maiguel, D., Jia, Z., and Pevsner, J. (2007) Evidence for 26 distinct acyl-coenzyme A synthetase genes in the human genome. Journal of Lipid Research. 48(12):2736-2750.
Abstract
Acyl-coenzyme A synthetases (ACSs) catalyze the fundamental, initial reaction in fatty acid metabolism. "Activation" of fatty acids by thioesterification to CoA allows their participation in both anabolic and catabolic pathways. The availability of the sequenced human genome has facilitated the investigation of the number of ACS genes present. Using two conserved amino acid sequence motifs to probe human DNA databases, 26 ACS family genes/proteins were identified. ACS activity in either humans or rodents was demonstrated previously for 20 proteins, but 6 remain candidate ACSs. For two candidates, cDNA was cloned, protein was expressed in COS-1 cells, and ACS activity was detected. Amino acid sequence similarities were used to assign enzymes into subfamilies, and subfamily assignments were consistent with acyl chain length preference. Four of the 26 proteins did not fit into a subfamily, and bootstrap analysis of phylograms was consistent with evolutionary divergence. Three additional conserved amino acid sequence motifs were identified that likely have functional or structural roles. The existence of many ACSs suggests that each plays a unique role, directing the acyl-CoA product to a specific metabolic fate. Knowing the full complement of ACS genes in the human genome will facilitate future studies to characterize their specific biological functions.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping