Sandbox Reserved 773: Difference between revisions
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== Sequence and Structure == | == Sequence and Structure == | ||
Histidine Decarboxylase is considered to be a homo-dimer when one observe its [[biological assembly]] <ref name=mast/>. A homodimer is a [[quaternary structure]] formed by two identical monomers or protein chains. In human, three human HDC (hHDC) homodimers can be joined together to form a trimer [[asymmetric unit]] <ref name=jbc/> <ref name=xray>PMID: 22684068</ref>. Thus, one can use the nomenclature “trimer of dimer” to suggest the complex might dissociate into smaller subunits before dissociating into monomers | Histidine Decarboxylase is considered to be a homo-dimer when one observe its [[biological assembly]] <ref name=mast/>. A homodimer is a [[quaternary structure]] formed by two identical monomers or protein chains. In human, three human HDC (hHDC) homodimers can be joined together to form a trimer in the [[asymmetric unit]] which can be seen in the 3D <scene name='56/564049/Front/1'>model</scene> <ref name=jbc/> <ref name=xray>PMID: 22684068</ref>. Thus, one can use the nomenclature “trimer of dimer” to suggest the complex might dissociate into smaller subunits before dissociating into monomers. Specifically, <scene name='56/564049/Cys180/1'>Cys-180</scene> and <scene name='56/564049/Cys418/1'>Cys-418</scene> are found to account for the oligomerization process of the HDC complex<ref name=xray/>. | ||