The sun is the ultimate source of energy for virtually all organisms. Photosynthetic cells are able to use solar energy to synthesize energy-rich food molecules and to produce oxygen.

The Orf2971-FtsHi complex is a structure with 20 subunits formed by 19 proteins, spanning the chloroplast inner membrane and extending into the intermembrane space as well as the stromal side.

A three-dimensional structure of cpSRP43 provides insights into how plants have adapted the SRP for post-translational targeting of membrane proteins. In chloroplasts, cpSRP use two mechanisms to ...