A conjugated protein such as hemoglobin that contains a colored metal-containing prosthetic group such as heme.
色蛋白结合的蛋白质，如血红蛋白，包括一个有色并含金属的辅成基，如血红素。
2
Lean red meat is high in easily absorbable heme iron and protein;
牛羊肉的瘦肉部分富含易吸收的血红铁素和蛋白质；
3
How the protein molecules to utilize the heme to perform different biological function, is always the research focus in chemical biology and protein chemistry.