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Keywords from Image Description:
Cystine zwitterion spacefill. Spacefilling model of the cystine molecule an amino acid formed from two cysteine molecules This image shows it as zwitterion Colourcode Carbon black FFF Hydrogen white FEE Oxygen red CFA Nitrogen blue FAEB Sulfur yellow own DS Visualizer Jynto talk Neutral form ballandstick version Neutral form spacefilling