phosphocarrier noun1 •A class of cytoplasmic protein that is involved in the phosphorylation of sugarsSimilarly, expressions of the ptsH gene, encoding the phosphocarrier protein HPr, and the SPD_0082 gene, encoding a sensor histidine kinase, were down-regulated 1.6- and 1.4-fold, respectively. — 2015 formsphosphocarriers