Introduction to protein structure: Difference between revisions
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==Domain== | ==Domain== | ||
A domain is an independently folded region of a protein that has a particular function. In contrast to motifs, domains can exist as separate, functional proteins. Often domains of proteins have different functions. For example, [[glyceraldehyde-3-phosphate dehydrogenase]] has <scene name='57/575866/G3pd_domains/1'>two domains</scene>: a NAD+ binding domain and a glyceraldehyde-3-phosphate binding domain. The NAD binding domain is | A domain is an independently folded region of a protein that has a particular function. In contrast to motifs, domains can exist as separate, functional proteins. Often domains of proteins have different functions. For example, [[glyceraldehyde-3-phosphate dehydrogenase]] has <scene name='57/575866/G3pd_domains/1'>two domains</scene>: a NAD+ binding domain and a glyceraldehyde-3-phosphate binding domain. The NAD binding domain is found in many proteins that bind NAD+, even though the reactions they catalyze are very different. | ||
==Tertiary Structure== | ==Tertiary Structure== | ||
