Knotted protein

This image of a knotted protein comes from a microorganism called methanobacterium thermoautotrophicum that breaks down waste products and produces methane gas. This was the first structure of the most ancient type of single-celled organism %u2013 archaebacterium. Protein-folding theory previously held that forming a knot was beyond the ability of a protein; as technology improves, biologists are determining higher-quality images of structures. Researchers used the powerful X-rays at the Advanced Photon Source at Argonne to determine the protein's structure.

Credit
Science Source / Argonne National Laboratory

Dimensions
2165 x 1727 pixels

Print Size @ 300 dpi
7 x 6 inches / 18 x 15 cm

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Keywords

archaebacteria, archaebacterium, bacteria, biology, knotted, methane, model, organism, protein, research, science, structure, anl, argonne national laboratory, methanobacterium thermoautotrophicum, single-cell, protein-folding, advanced photon source