1cx8: Difference between revisions

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<StructureSection load='1cx8' size='340' side='right'caption='[[1cx8]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
<StructureSection load='1cx8' size='340' side='right'caption='[[1cx8]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1cx8]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. The November 2002 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Ferritin and Transferrin''  by David S. Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2002_11 10.2210/rcsb_pdb/mom_2002_11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CX8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1CX8 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1cx8]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. The November 2002 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Ferritin and Transferrin''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2002_11 10.2210/rcsb_pdb/mom_2002_11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CX8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CX8 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SM:SAMARIUM+(III)+ION'>SM</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SM:SAMARIUM+(III)+ION'>SM</scene></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=1cx8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cx8 OCA], [http://pdbe.org/1cx8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1cx8 RCSB], [http://www.ebi.ac.uk/pdbsum/1cx8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1cx8 ProSAT]</span></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=1cx8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cx8 OCA], [https://pdbe.org/1cx8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cx8 RCSB], [https://www.ebi.ac.uk/pdbsum/1cx8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cx8 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/TFR1_HUMAN TFR1_HUMAN]] Cellular uptake of iron occurs via receptor-mediated endocytosis of ligand-occupied transferrin receptor into specialized endosomes. Endosomal acidification leads to iron release. The apotransferrin-receptor complex is then recycled to the cell surface with a return to neutral pH and the concomitant loss of affinity of apotransferrin for its receptor. Transferrin receptor is necessary for development of erythrocytes and the nervous system (By similarity). A second ligand, the heditary hemochromatosis protein HFE, competes for binding with transferrin for an overlapping C-terminal binding site.<ref>PMID:3568132</ref>   
[[https://www.uniprot.org/uniprot/TFR1_HUMAN TFR1_HUMAN]] Cellular uptake of iron occurs via receptor-mediated endocytosis of ligand-occupied transferrin receptor into specialized endosomes. Endosomal acidification leads to iron release. The apotransferrin-receptor complex is then recycled to the cell surface with a return to neutral pH and the concomitant loss of affinity of apotransferrin for its receptor. Transferrin receptor is necessary for development of erythrocytes and the nervous system (By similarity). A second ligand, the heditary hemochromatosis protein HFE, competes for binding with transferrin for an overlapping C-terminal binding site.<ref>PMID:3568132</ref>   
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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==See Also==
==See Also==
*[[Human Hemochromatosis Protein|Human Hemochromatosis Protein]]
*[[Hemochromatosis protein|Hemochromatosis protein]]
*[[Transferrin receptor|Transferrin receptor]]
*[[Transferrin receptor|Transferrin receptor]]
== References ==
== References ==

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