1pe3
From Proteopedia
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| - | [[Image:1pe3.gif|left|200px]] | + | [[Image:1pe3.gif|left|200px]] |
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| - | '''Solution structure of the disulphide-linked dimer of human intestinal trefoil factor (TFF3)''' | + | {{Structure |
| + | |PDB= 1pe3 |SIZE=350|CAPTION= <scene name='initialview01'>1pe3</scene> | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= TFF3 OR ITF OR TFI ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | }} | ||
| + | |||
| + | '''Solution structure of the disulphide-linked dimer of human intestinal trefoil factor (TFF3)''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1PE3 is a [ | + | 1PE3 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PE3 OCA]. |
==Reference== | ==Reference== | ||
| - | Solution structure of the disulfide-linked dimer of human intestinal trefoil factor (TFF3): the intermolecular orientation and interactions are markedly different from those of other dimeric trefoil proteins., Muskett FW, May FE, Westley BR, Feeney J, Biochemistry. 2003 Dec 30;42(51):15139-47. PMID:[http:// | + | Solution structure of the disulfide-linked dimer of human intestinal trefoil factor (TFF3): the intermolecular orientation and interactions are markedly different from those of other dimeric trefoil proteins., Muskett FW, May FE, Westley BR, Feeney J, Biochemistry. 2003 Dec 30;42(51):15139-47. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14690424 14690424] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: trefoil motif]] | [[Category: trefoil motif]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:23:10 2008'' |
Revision as of 11:23, 20 March 2008
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| Gene: | TFF3 OR ITF OR TFI (Homo sapiens) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Solution structure of the disulphide-linked dimer of human intestinal trefoil factor (TFF3)
Contents |
Overview
The trefoil protein TFF3 forms a homodimer (via a disulfide linkage) that is thought to have increased biological activity over the monomer. The solution structure of the TFF3 dimer has been determined by NMR and compared with the structure of the TFF3 monomer and with other trefoil dimer structures (TFF1 and TFF2). The most significant structural differences between the trefoil domain in the monomer and dimer TFF3 are in the orientations of the N-terminal 3(10)-helix (residues 10-12) and in the presence in the dimer of an additional 3(10)-helix (residues 53-55) outside of the core region. The TFF3 dimer forms a more compact structure as compared with the TFF1 dimer where the two trefoil domains are connected by a flexible region with the monomer units being at variable distances from each other and in many different orientations. Although TFF2 is also a compact structure, the dispositions of its monomer units are very different from those of TFF3. The structural differences between the dimers result in the two putative receptor/ligand binding sites that remain solvent exposed in the dimeric structures having very different dispositions in the different dimers. Such differences have significant implications for the mechanism of action and functional specificity for the TFF class of proteins.
Disease
Known disease associated with this structure: Pitt-Hopkins syndrome OMIM:[602272]
About this Structure
1PE3 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Solution structure of the disulfide-linked dimer of human intestinal trefoil factor (TFF3): the intermolecular orientation and interactions are markedly different from those of other dimeric trefoil proteins., Muskett FW, May FE, Westley BR, Feeney J, Biochemistry. 2003 Dec 30;42(51):15139-47. PMID:14690424
Page seeded by OCA on Thu Mar 20 13:23:10 2008
