1n04

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{{Seed}}
 
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[[Image:1n04.png|left|200px]]
 
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==Diferric chicken serum transferrin at 2.8 A resolution.==
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The line below this paragraph, containing "STRUCTURE_1n04", creates the "Structure Box" on the page.
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<StructureSection load='1n04' size='340' side='right'caption='[[1n04]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1n04]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N04 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1N04 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO3:CARBONATE+ION'>CO3</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=FUL:BETA-L-FUCOSE'>FUL</scene></td></tr>
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{{STRUCTURE_1n04| PDB=1n04 | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1n04 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n04 OCA], [https://pdbe.org/1n04 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1n04 RCSB], [https://www.ebi.ac.uk/pdbsum/1n04 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1n04 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TRFE_CHICK TRFE_CHICK] Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate. Responsible for the transport of iron from sites of absorption and heme degradation to those of storage and utilization. There are two forms of hen transferrin, ovotransferrin, found in the ovoducts and, serum transferrin, secreted by the liver. Serum transferrin may also have a role in stimulating cell proliferation and is regulated by iron levels. Ovotransferrin has a bacteriostatic function and, is not controlled by iron levels.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n0/1n04_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1n04 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Hen serum transferrin in its diferric form (hST) has been isolated, purified and the three-dimensional structure determined by X-ray crystallography at 2.8 A resolution. The final refined structure of hST, comprising 5232 protein atoms, two Fe(3+) cations, two CO(3)(2-) anions, 54 water molecules and one fucose moiety, has an R factor of 21.5% and an R(free) of 26.9% for all data. The structure has been compared with the three-dimensional structure of hen ovotransferrin (hOT) and also with structures of some other transferrins, viz. rabbit serum transferrin (rST) and human lactoferrin (hLF). The overall conformation of the hST molecule is essentially the same as that of other transferrins. However, the relative orientation of the two lobes, which is related to the species-specific receptor-recognition property of transferrins, has been found to be different in hST from that in hOT, rST and hLF. On the basis of superposition of the N lobes, rotations of 5.8, 16.9 and 11.3 degrees are required to bring the C lobes of hOT, rST and hLF, respectively, into coincidence with that of hST. A number of additional hydrogen bonds between the two domains in the N and C lobes have been identified in the structure of hST compared with that of hOT, which indicate a greater compactness of the lobes of hST than those of hOT. Being products of the same gene, hST and hOT have 100% sequence identity and differ only in the attached carbohydrate moiety. On the other hand, despite having similar functions, hST and rST have only 51% sequence similarity. However, the nature of the interdomain interactions of hST are closer to rST than to hOT. A putative carbohydrate-binding site has been identified in the N lobe of hST at Asn52 and a fucose molecule could be modelled at the site. The variations in interdomain and interlobe interactions in hST, together with altered lobe orientation with respect to hOT, rST and hLF, which are the representatives of the other subfamily of transferrins, are discussed.
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===Diferric chicken serum transferrin at 2.8 A resolution.===
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Structure of diferric hen serum transferrin at 2.8 A resolution.,Guha Thakurta P, Choudhury D, Dasgupta R, Dattagupta JK Acta Crystallogr D Biol Crystallogr. 2003 Oct;59(Pt 10):1773-81. Epub 2003, Sep 19. PMID:14501117<ref>PMID:14501117</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1n04" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_14501117}}, adds the Publication Abstract to the page
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*[[Transferrin 3D structures|Transferrin 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 14501117 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_14501117}}
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__TOC__
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</StructureSection>
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==About this Structure==
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1N04 is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N04 OCA].
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==Reference==
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<ref group="xtra">PMID:14501117</ref><references group="xtra"/>
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[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
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[[Category: Choudhury, D.]]
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[[Category: Large Structures]]
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[[Category: Dasgupta, R.]]
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[[Category: Choudhury D]]
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[[Category: Dattagupta, J K.]]
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[[Category: Dasgupta R]]
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[[Category: Thakurta, P Guha.]]
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[[Category: Dattagupta JK]]
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[[Category: Bilobal]]
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[[Category: Guha Thakurta P]]
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[[Category: Iron transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 18:05:41 2009''
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Current revision

Diferric chicken serum transferrin at 2.8 A resolution.

PDB ID 1n04

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