MOLEKUUL / SCIENCE PHOTO LIBRARY MOLEKUUL / SCIENCE PHOTO LIBRARY
Heme B (haem B) molecule. Heme is an essential component of hemoglobin, myoglobin, cytochrome, catalase and other metalloproteins. Stylized skeletal formula (chemical structure). Atoms are shown as color-coded circles: hydrogen (hidden), carbon (grey), oxygen (red), nitrogen (blue), iron (orange-brown).
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