Phosphorylation of an Escherichia coli protein at tyrosine.
The analysis of protein phosphorylation in the bacterium Escherichia coli showed that, while most phosphoproteins are modified at serine and/or threonine residues, one of them is modified exclusively at tyrosine. This particular protein which has a molecular weight of 54,500 and a pHi value of 5.6 is found associated with the membrane/ribosome fraction of the cell.
D000595:Amino Acid Sequence; D001345:Autoradiography; D001426:Bacterial Proteins / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000378:metabolism*; D007525:Isoelectric Focusing; D010750:Phosphoproteins / Q000378:metabolism*; D010766:Phosphorylation; D014443:Tyrosine
D001426:Bacterial Proteins; D010750:Phosphoproteins; D014443:Tyrosine