Enzymes Involved in Fatty Acid and Polyketide Biosynthesis inStreptomyces glaucescens:  Role of FabH and FabD and Their Acyl Carrier Protein Specificity†

Biochemistry ◽  
2002 ◽  
Vol 41 (33) ◽  
pp. 10462-10471 ◽  
Author(s):  
Galina Florova ◽  
Galina Kazanina ◽  
Kevin A. Reynolds
Author(s):  
Jeffrey T. Mindrebo ◽  
Ashay Patel ◽  
Laëtitia E. Misson ◽  
Woojoo E. Kim ◽  
Tony D. Davis ◽  
...  

Planta ◽  
2010 ◽  
Vol 231 (6) ◽  
pp. 1277-1289 ◽  
Author(s):  
Damián González-Mellado ◽  
Penny von Wettstein-Knowles ◽  
Rafael Garcés ◽  
Enrique Martínez-Force

2008 ◽  
Vol 130 (20) ◽  
pp. 6336-6337 ◽  
Author(s):  
Hui Jiang ◽  
Ross Zirkle ◽  
James G. Metz ◽  
Lisa Braun ◽  
Leslie Richter ◽  
...  

FEBS Journal ◽  
2006 ◽  
Vol 273 (4) ◽  
pp. 695-710 ◽  
Author(s):  
Penny von Wettstein-Knowles ◽  
Johan G. Olsen ◽  
Kirsten A. McGuire ◽  
Anette Henriksen

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Woo Cheol Lee ◽  
Sungjae Choi ◽  
Ahjin Jang ◽  
Kkabi Son ◽  
Yangmee Kim

AbstractSome Gram-negative bacteria harbor lipids with aryl polyene (APE) moieties. Biosynthesis gene clusters (BGCs) for APE biosynthesis exhibit striking similarities with fatty acid synthase (FAS) genes. Despite their broad distribution among pathogenic and symbiotic bacteria, the detailed roles of the metabolic products of APE gene clusters are unclear. Here, we determined the crystal structures of the β-ketoacyl-acyl carrier protein (ACP) reductase ApeQ produced by an APE gene cluster from clinically isolated virulent Acinetobacter baumannii in two states (bound and unbound to NADPH). An in vitro visible absorption spectrum assay of the APE polyene moiety revealed that the β-ketoacyl-ACP reductase FabG from the A. baumannii FAS gene cluster cannot be substituted for ApeQ in APE biosynthesis. Comparison with the FabG structure exhibited distinct surface electrostatic potential profiles for ApeQ, suggesting a positively charged arginine patch as the cognate ACP-binding site. Binding modeling for the aryl group predicted that Leu185 (Phe183 in FabG) in ApeQ is responsible for 4-benzoyl moiety recognition. Isothermal titration and arginine patch mutagenesis experiments corroborated these results. These structure–function insights of a unique reductase in the APE BGC in comparison with FAS provide new directions for elucidating host–pathogen interaction mechanisms and novel antibiotics discovery.


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