is 34.54 KB, has a resolution of 2000x2104 pixels and was uploaded on December 25, 2020 @ 2:48 am by user: adelewlf. It is filed under the tags: line art, side chain, protein, acid, black and white. Click the blue button at the top to freely download: Skeletal Muscle Branched-chain Amino Acid Essential Leucine Valine png.