In 1961 the structure of one protein, myoglobin ... The chemical shifts of the ε1 CH protons of the four histidine residues were measured; they are well-resolved in native RNase S even at ...

Analysis of a bacterial transcriptional repressor protein indicates that metal-catalyzed oxidation of histidine residues can provide oxidative stress control in a cysteine-independent fashion.

The nine essential amino acids are histidine, isoleucine, leucine ... The sequence of amino acids in a protein, known as its primary structure, determines its unique three-dimensional shape and ...

His-tag peptides—short sequences of histidine amino acids—were used ... cryo-electron microscopy to examine protein structure, lipid bilayer channel recordings to assess pore formation ...