Carboxysomes are protein-based organelles essential for carbon fixation in cyanobacteria and proteobacteria.

Carboxysomes are protein-enclosed bacterial microcompartments within the Cytosol.

Atomic-level models of the bacterial carboxysome shell (2008)

Vaults and the major vault protein: novel roles in signal pathway regulation and immunity (2009)

Archean Eon is the second of four geologic eons of Earth's history, representing the time from 4,000 to 2,500 million years ago. In this time, the Earth's crust had cooled enough for continents to form and for the earliest known life to start.

findings indicate numerous organisms, which generate more than one type of micro-compartment, probably use an unknown mechanism to prevent negative shell protein interactions.

Bobik noted that the entire impetus of the groundbreaking discovery was an accident.

Almost one-fifth of bacterial genomes generate micro-compartments, and nearly 40 percent of those contain genes for multiple micro-compartments.