Histidine Molecule - 3D

Histidine has the Chemical Formula C6H9N3O2, and a Molar mass 155.16 g/mol. Its codons are CAU and CAC. The imidazole side chains and the relatively neutral pKa of histidine (ca 6.0) mean that relatively small shifts in cellular pH will change its charge. For this reason, this amino acid side chain finds its way into considerable use as a coordinating ligand in metalloproteins, and also as a catalytic site in certain enzymes.

To view in Chime -- PDB Structure of the Histidine Molecule

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