title: Unveiling the three-dimensional structure of the green pigment of nitrite-cured meat.
abstract: The 1.70 Å-resolution X-ray crystal structure of the green pigment occasionally present in nitrite-cured meat reveals a regiospecific nitration of the heme at the 2-vinyl position; the regiospecificity is favored on steric grounds, and results in movement of the 2-nitrovinyl moiety into the plane of the 24-atom heme macrocycle.
authors.affiliation: Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA. yijun@ou.edu
authors.forename: Jun
authors.initials: J
authors.lastname: Yi
authors.forename: George B
authors.initials: GB
authors.lastname: Richter-Addo
mesh_terms: D000818:Animals; D020134:Catalytic Domain; D018360:Crystallography, X-Ray; D006418:Heme / Q000737:chemistry; D006736:Horses; D009211:Myoglobin / Q000737:chemistry*; D009573:Nitrites / Q000737:chemistry*
chemical_list: D009211:Myoglobin; D009573:Nitrites; D006418:Heme