Many different experimental techniques are used to solve the structure of a biological macromolecule.
Sometimes, more than one technique has been used to solve the same structure.
For example, the Auxilin structure has been solved by using three different experimental techniques, as shown by the following table:

Technique Cryo-EM NMR X-ray
PDB code 1XI5 1N4C 1NZ6

You can reach the Structure Summary Page of each entry by typing the corresponding PDB code in the search (blue) bar on the PDB home page, or you can simply click on the PDB codes in the table above.
Note that the NMR entry (1N4C) is made up of 20 STRUCTURES!
(You can visualize all of them by using the WebMol viewer).

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