Homogentisate dioxygenase cleaves the aromatic ring during the metabolic degradation of Phe and Tyr. Homogentisate dioxygenase deficiency causes alkaptonuria. The structure of homogentisate dioxygenase shows that the enzyme forms a hexamer arrangeme ...
Homogentisate dioxygenase cleaves the aromatic ring during the metabolic degradation of Phe and Tyr. Homogentisate dioxygenase deficiency causes alkaptonuria. The structure of homogentisate dioxygenase shows that the enzyme forms a hexamer arrangement comprised of a dimer of trimers. The active site iron ion is coordinated near the interface between the trimers [1]. This entry represents the C-terminal active site domain.
Homogentisate dioxygenase cleaves the aromatic ring during the metabolic degradation of Phe and Tyr. Homogentisate dioxygenase deficiency causes alkaptonuria. The structure of homogentisate dioxygenase shows that the enzyme forms a hexamer arrangeme ...
Homogentisate dioxygenase cleaves the aromatic ring during the metabolic degradation of Phe and Tyr. Homogentisate dioxygenase deficiency causes alkaptonuria. The structure of homogentisate dioxygenase shows that the enzyme forms a hexamer arrangement comprised of a dimer of trimers. The active site iron ion is coordinated near the interface between the trimers [1]. This entry represents the N-terminal domain which forms a jelly roll of beta-strands [1].
Homogentistate dioxygenase (HGO) catalyses the metabolic degredation of Phe and Tyr amino acids. The ring opening reaction requires non-heme Fe(2+) to incorporate both atoms of molecular oxygen into homogentisate. The accumulation of this substrate, when insufficient levels of HGO are present, results in the deposition of of insoluble ochromotic pigments in conective tissues, leading to degenerative arthritis.
Defined by 5 residues: HIS:A-318 [auth A-292]HIS:A-361 [auth A-335]GLU:A-367 [auth A-341]HIS:A-391 [auth A-365]HIS:A-397 [auth A-371]
