Tricarboxylic acid cycle-dependent synthesis of Staphylococcus aureus Type 5 and 8 capsular polysaccharides.
Staphylococcus aureus capsule synthesis requires the precursor N-acetyl-glucosamine; however, capsule is synthesized during post-exponential growth when the availability of N-acetyl-glucosamine is limited. Capsule biosynthesis also requires aerobic respiration, leading us to hypothesize that capsule synthesis requires tricarboxylic acid cycle intermediates. Consistent with this hypothesis, S. aureus tricarboxylic acid cycle mutants fail to make capsule.
Sadykov
Marat R
MR
Department of Veterinary and Biomedical Sciences, University of Nebraska, 155 VBS, Fair St. and East Campus Loop, Lincoln, NE 68583-0905, USA.
Mattes
Theodoric A
TA
Luong
Thanh T
TT
Zhu
Yefei
Y
Day
Shandra R
SR
Sifri
Costi D
CD
Lee
Chia Y
CY
Somerville
Greg A
GA
D000117:Acetylglucosamine / Q000378:metabolism; D000332:Aerobiosis; D001426:Bacterial Proteins / Q000235:genetics; D053898:Biosynthetic Pathways; D002952:Citric Acid Cycle; D009154:Mutation; D011135:Polysaccharides, Bacterial / Q000096:biosynthesis*; D013211:Staphylococcus aureus / Q000378:metabolism*
D001426:Bacterial Proteins; D011135:Polysaccharides, Bacterial; D000117:Acetylglucosamine