Select run/agree if any authentication warning appears. Under the static image on the right side of the page, select Jmol to display the structure.You can also explore the different tabs at the top of this page, including the Sequence Details page. You can look at this page to learn about important aspects of the structure, like how many chains are present in the file, whether these chains are protein or nucleic acid, etc. This will take you to the Structure Summary page for 1ZAA.Go to and enter 1ZAA in the search box.The video uses the steps below to create the model. The PDB entry 1zaa contains three linked zinc fingers bound to DNA. For more, see RCSB PDB Molecule of the Month's feature on zinc fingers.īuilding a model of the backbone of a zinc finger illustrates this shape, and lets us highlight the amino acids that are important to the zinc finger's function. Zinc fingers are so useful that they are found in thousands of our proteins, and are common in all plants and animals. In these proteins, termed zinc fingers, a short chain of 20-30 amino acids is enough to create a solid, stable structure. About Zinc Fingers ( Why make a 3D model?)īy arranging two cysteines and two histidines close to each other in a chain, a protein can grab a zinc ion and fold tightly around it. The video demonstrates a way to build a full model and how to use Jmol to build a portion of a molecule at the onsite build. In this video, Hyunmi and Maggie use the RCSB PDB website to find zinc finger protein 1zaa, select a portion of the structure to view in Jmol, and then build a toober model. Demonstration of how to build a toober model of a zinc finger using the RCSB PDB website and Jmol.
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