There are a lot of methods to determine the structure of protein, but the most suitable is x-ray dissection. Actually, the protein crystallography is not detached part, but it is quite essential part of x-ray crystallography. Protein crystallography is a perfect method of studying more about the secondary, and as it found out triple structure of protein. Sometimes, on the basis of crystallography data it is possible do determine the protein quaternary structure, but it is not always the case. The capability of protein texture describing depends from lots of various factors. Folding of protein is the main structural property of protein molecule. In compliance with all theories, all data about protein folding is stocked in the protein primary texture, or in protein succession, that is why it is important to start any protein function research from determination of sequence of protein. When the origin of protein is completely researched, there will be a chance to determine a lot of different characteristics of protein as classification of protein, protein role etc. and just learn more about protein problem. There are a lot of protein problems which are not resolved regardless of the present achievements. There is some determined relations between the texture of protein and its basic texture, but they haven't been specified. Scientists managed to resolve these problems only for the sort of proteins called peptides. The description of peptides is the demesne which is well-studied. The peptide synthesis can be performed and even for any length of peptides.

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