DM0000: The mark consists of a segmented square with rounded corners, with each side divided by two L shapes facing in opposite directions, bracketing each corner of the square. The arms of the L shapes that are parallel to the outer square form another segmented square within it. The words "TETRAPHASE PHARMACEUTICALS" appear to the right of the design element, in uppercase letters, with "PHARMACEUTICALS" in a smaller font and oriented below and to the right of "TETRAPHASE".