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==THE MECHANISM OF IRON UPTAKE BY TRANSFERRINS: THE STRUCTURE OF AN 18KD NII-DOMAIN FRAGMENT AT 2.3 ANGSTROMS RESOLUTION==
==THE MECHANISM OF IRON UPTAKE BY TRANSFERRINS: THE STRUCTURE OF AN 18KD NII-DOMAIN FRAGMENT AT 2.3 ANGSTROMS RESOLUTION==
<StructureSection load='1ovb' size='340' side='right' caption='[[1ovb]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
<StructureSection load='1ovb' size='340' side='right'caption='[[1ovb]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1ovb]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Anas_sp. Anas sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OVB OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OVB FirstGlance]. <br>
<table><tr><td colspan='2'>[[1ovb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Anas_sp. Anas sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OVB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OVB FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CO3:CARBONATE+ION'>CO3</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ovb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ovb OCA], [http://pdbe.org/1ovb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ovb RCSB], [http://www.ebi.ac.uk/pdbsum/1ovb PDBsum]</span></td></tr>
<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></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ovb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ovb OCA], [https://pdbe.org/1ovb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ovb RCSB], [https://www.ebi.ac.uk/pdbsum/1ovb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ovb ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/TRFE_ANAPL TRFE_ANAPL]] Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate. It is responsible for the transport of iron from sites of absorption and heme degradation to those of storage and utilization. Serum transferrin may also have a further role in stimulating cell proliferation.  Ovotransferrin has a bacteriostatic function. Its concentration in avian egg is the highest concentration of any transferrin in vivo (By similarity).  
[https://www.uniprot.org/uniprot/TRFE_ANAPL TRFE_ANAPL] Transferrins are iron binding transport proteins which can bind two Fe(3+) ions in association with the binding of an anion, usually bicarbonate. It is responsible for the transport of iron from sites of absorption and heme degradation to those of storage and utilization. Serum transferrin may also have a further role in stimulating cell proliferation.  Ovotransferrin has a bacteriostatic function. Its concentration in avian egg is the highest concentration of any transferrin in vivo (By similarity).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ov/1ovb_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ov/1ovb_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
</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=1ovb ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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==See Also==
==See Also==
*[[Transferrin|Transferrin]]
*[[Transferrin 3D structures|Transferrin 3D structures]]
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Anas sp]]
[[Category: Anas sp]]
[[Category: Kuser, P]]
[[Category: Large Structures]]
[[Category: Lindley, P]]
[[Category: Kuser P]]
[[Category: Sarra, R]]
[[Category: Lindley P]]
[[Category: Iron transport protein]]
[[Category: Sarra R]]

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