Download MendeleyStructural characterization of a hypothetical protein: a potential agent involved in trimethylamine metabolism in Catenulispora acidiphila.
Filippova, E.V., Luan, C.H., Dunne, S.F., Kiryukhina, O., Minasov, G., Shuvalova, L., Anderson, W.F.(2014) J Struct Funct Genomics 15: 33-40
- PubMed: 24562475
- DOI: https://doi.org/10.1007/s10969-014-9176-z
- Primary Citation of Related Structures:
4H3U, 4HVN - PubMed Abstract:
Catenulispora acidiphila is a newly identified lineage of actinomycetes that produces antimicrobial activities and represents a promising source of novel antibiotics and secondary metabolites. Among the discovered protein coding genes, 68 % were assigned a putative function, while the remaining 32 % are genes encoding "hypothetical" proteins. Caci_0382 is one of the "hypothetical" proteins that has very few homologs. Sequence analysis shows that the protein belongs to the NTF2-like protein family. The structure of Caci_0382 demonstrates that it shares the same fold and has a similar active site as limonene-1,2-epoxide hydrolase, which suggests that it may have a related function. Using a fluorescence thermal shift assay, we identified stabilizing compounds that suggest potential natural ligands of Caci_0382. Using this information, we determined the crystal structure in complex with trimethylamine to provide a better understanding of the function of this uncharacterized protein.
Organizational Affiliation:
Department of Molecular Pharmacology and Biological Chemistry, Northwestern Feinberg School of Medicine, Chicago, IL, 60611, USA.
