N(tele)-[5'-phospho-(purine ribonucleotide)]-L-histidine(1-) residue
n(tele)-[5'-phospho-(purine ribonucleotide)]-l-histidine(1-) residue
An anionic amino-acid residue consisting of a 5'-phospho-purine ribonucleotide residue linked to the <em>N</em><small><sup>τ</small></sup> of an <small>L</small>-histidine residue; major microspecies at pH 7.3