Editing Protein structure (section)

==Computational prediction of protein structure==
{{Main|Protein structure prediction}}
The generation of a [[protein sequence]] is much easier than the determination of a protein structure. However, the structure of a protein gives much more insight in the function of the protein than its sequence. Therefore, a number of methods for the computational prediction of protein structure from its sequence have been developed.<ref name="zhang2008">{{cite journal | vauthors = Zhang Y | title = Progress and challenges in protein structure prediction | journal = Current Opinion in Structural Biology | volume = 18 | issue = 3 | pages = 342–348 | date = June 2008 | pmid = 18436442 | pmc = 2680823 | doi = 10.1016/j.sbi.2008.02.004 }}</ref> ''Ab initio'' prediction methods use just the sequence of the protein. [[Threading (protein sequence)|Threading]] and [[homology modeling]] methods can build a 3-D model for a protein of unknown structure from experimental structures of evolutionarily-related proteins, called a [[protein family]].