protein histidine pros-kinase activity

Catalysis of the reaction: ATP + protein L-histidine = ADP + protein N(pi)-phospho-L-histidine.

phosphoenolpyruvate-protein phosphotransferase activity

Catalysis of the reaction: phosphoenolpyruvate + protein L-histidine = pyruvate + protein N(pi)-phospho-L-histidine.

obsolete enzyme active site formation via 3'-phospho-L-histidine

OBSOLETE. The transient phosphorylation of peptidyl-histidine to form 3'-phospho-L-histidine (otherwise known as pi-phosphohistidine, pros-phosphohistidine).

obsolete peptidyl-histidine methylation, to form pros-methylhistidine

OBSOLETE. The methylation of peptidyl-L-histidine to form peptidyl-L-3'-methyl-L-histidine (otherwise known as pi-methylhistidine, pros-methylhistidine).

obsolete protein-heme linkage via 3'-L-histidine

OBSOLETE. The covalent linkage of heme and a protein via 3'-L-histidine (otherwise known as pi-heme-histidine, pros-heme-histidine).

phosphate ion export across plasma membrane

The directed movement of phosphate ions (Pi) from inside of a cell, across the plasma membrane and into the extracellular region.

phosphoenolpyruvate-dependent sugar phosphotransferase complex

Includes phosphoenolpyruvate-protein phosphatase (enzyme I of the phosphotransferase system) and protein-N(PI)-phosphohistidine-sugar phosphotransferase (enzyme II of the phosphotransferase system).

phosphatidylinositol 3-kinase complex, class I

A phosphatidylinositol 3-kinase complex that contains a catalytic and a regulatory subunit of a phosphatidylinositol 3-kinase (PI3K) enzyme, plus one or more adaptor proteins. Class I PI3Ks phosphorylate phosphatidylinositol [PI], phosphatidylinositol-4-phosphate [PI(4)P] and phosphatidylinositol-4,5-bisphosphate [PI(4,5)P2], and are divided into subclasses A and B according to the type of adaptor subunit with which they associate. The class I PI3K subfamily of genes comprises members in vertebrates, worm and fly, but none in yeast.

protein-N(PI)-phosphohistidine-sugar phosphotransferase complex

An enzyme complex that catalyzes the transfer of a phosphate from protein N(PI)-phosphohistidine to a sugar molecule. It is enzyme II of the phosphotransferase system.

pi-body

A P granule that contains the PIWIL2-TDRD1 module, a set of proteins that act in the primary piRNA pathway. The pi-body corresponds to the cementing material between mitochondria found in gonocytes.