A ball-and-stick model structure of basic (positively-charged) amino acid arginine (Arg, R). Carbon in blue-grey, oxygen in red, nitrogen in green, hydrogen in silver. Drawn in Inkscape.
A ball-and-stick model structure of basic (positively-charged) amino acid lysine (Lys, K). Carbon in blue-grey, oxygen in red, nitrogen in green, hydrogen in silver. Drawn in Inkscape.
A ball-and-stick model structure of basic (positively-charged) amino acid histidine (His, H). Carbon in blue-grey, oxygen in red, nitrogen in green, hydrogen in silver. Drawn in Inkscape.
Colorful and positive vector buttons. There are 8 pins with bright colored Illustrator icons for your peace and happiness themes: winking smiley faces, a peace sign, a checkbox with a tick, a stylized version of the American flag and two badges with text that read “Save our trees!” and “Vote”.
Do:
• Use our official, unmodified Twitter bird to represent our brand.
• Make sure the bird faces right.
• Allow for at least 150% buffer space around the bird.
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Don't:
• Use speech bubbles or words around the bird.
• Rotate or change the direction of the bird.
• Animate the bird.
• Duplicate the bird.
• Change the color of the bird.
• Use any other marks or logos to represent our brand.