Cell wall teichoic acids of actinomycetes of three genera of the order actinomycetales.
The structures of cell wall teichoic acids of the members of newly recognized genera of the order Actinomycetales were studied. Planotetraspora mira VKM Ac-2000T contains two types of teichoic acids: 2,3-poly(glycerol phosphate) substituted with alpha-D-Galp at C-1 of glycerol and 1,3-poly(glycerol phosphate) substituted with alpha-L-Rhap at OH-2 of glycerol (60%). Herbidospora cretacea VKM Ac-1997T contains the chains of 1,3-poly(glycerol phosphate) partially substituted with alpha-D-Galp and alpha-D-GalpNAc at C-2 of glycerol. The majority of alpha-D-galactopyranosyl residues are substituted at OH-3 with a sulfate. The aforementioned teichoic acids have not been found in bacteria thus far. Actinocorallia herbida VKM Ac-1994T contains poly(galactosylglycerol phosphate), with the beta-Galp-(1-->2)-Gro-P repeating units being linked via the phosphodiester bonds between the OH-3 of glycerol and OH-6 of galactose. Earlier, this structure was found in the cell wall of Actinomadura madura. The polymer structures were determined by chemical analysis and using 13C-NMR spectroscopy. The results show that teichoic acids are widespread in the order Actinomycetales.
School of Biology, Lomonosov Moscow State University, Moscow, 199899 Russia.
G M
GM
Streshinskaya
A S
AS
Shashkov
A I
AI
Usov
L I
LI
Evtushenko
I B
IB
Naumova
D000192:Actinomycetales / Q000737:chemistry* / Q000145:classification*; D002473:Cell Wall / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013682:Teichoic Acids / Q000032:analysis*
D013682:Teichoic Acids