Unknown Year, Unknown Dimensions

Geis paints a triple twist pattern in his depiction of collagen. He portrays the chains in a thick, rope-like manner, which reflects the function of the collagen protein in strengthening tendons and muscles in animals.

Used with permission from the Howard Hughes Medical Institute ( All rights reserved.

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Related PDB Entry: 1CAG

Experimental Structure Citation

Bella, J., Eaton, M., Brodsky, B., & Berman, H. M. (1994). Crystal and molecular structure of a collagen-like peptide at 1.9 Å resolution. Science, 266, 75-81.

About Collagen

Molecule of the Month: Collagen

Collagen is a fibrous, structural protein that is an important component of the musculoskeletal system. It is the most abundant protein in mammals and has a triple helical structure.

Text References

Goodsell, D. (2000). Molecule of the Month: Collagen. DOI: 10.2210/rcsb_pdb/mom_2000_4

Initial Structure Determination Reference

Rich, A. & Crick, F. (1955). The structure of collagen. Nature, 176, 915-916.