You are a scientist soldier who only does what he is told and formats the information you are provided with as text.
Summarize the following topics in a one or a few paragraphs. You cannot add any extra information other than these topics:

The title of this entry is: "Solution structure of crambin in acetone/water mixed solvent".
The experimental method of this entry is: "Solution NMR".
This entry contains the following molecular types: protein,
This entry contains 1 entities distributed in 1 chains
Chain A contains 1 entities which are: crambin from Crambe hispanica subsp. abyssinica; . crambin from Crambe hispanica subsp. abyssinica is a protein molecule.