Amino acids,alphabetically: alanine,arginine,asparagine,aspartic acid,cysteine,glutamic acid,glutamine,glycine,histidine,isoleucine,leucine,lysine,methionine,phenylalanine,proline,serine,threonine,tryptophan,tyrosine,valine. Stylized skeletal formula (chemical structure). Atoms are shown as color-coded circles: hydrogen (hidden),carbon (grey),nitrogen (blue),oxygen (red),sulfur (yellow) | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / Molekuul |
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Property Release : | Non requis |
Restrictions : | - |