Comparative study of the life cycle dependent post-translation modifications of protein synthesis elongation factor Tu present in the membrane proteome of streptomycetes and mycobacteria.
We present the results of analysis of membrane phosphoproteomes from individual morphological stages of Streptomyces coelicolor that reflect developmentally dependent heterogeneity and phosphorylation of intrinsic and externally added purified Strepomyces aureofaciens EF-Tu. Fast growing nonpathogenic Mycobacterium smegmatis was used as a non-differentiating actinomycetes comparative model. Streptomycetes membrane fraction was found to contain protein kinase(s) catalyzing phosphorylation of both its own and an externally added EF-Tu, whereas Mycobacterium membrane fraction contains protein kinase phosphorylating only its own EF-Tu.
Institute of Microbiology v.v.i., Academy of Sciences of the Czech Republic, 142 20, Prague, Czech Republic.
M
M
Holub
S
S
Bezousková
D
D
Petrácková
L
L
Kalachová
O
O
Kofronová
O
O
Benada
J
J
Weiser
D002462:Cell Membrane / Q000737:chemistry* / Q000201:enzymology / Q000378:metabolism; D020102:Mycobacterium smegmatis / Q000737:chemistry* / Q000201:enzymology / Q000378:metabolism; D010444:Peptide Elongation Factor Tu / Q000302:isolation & purification / Q000378:metabolism*; D010766:Phosphorylation; D011494:Protein Kinases / Q000302:isolation & purification / Q000378:metabolism; D011499:Protein Processing, Post-Translational; D013302:Streptomyces / Q000737:chemistry* / Q000201:enzymology / Q000378:metabolism
D011494:Protein Kinases; D010444:Peptide Elongation Factor Tu