3v89

From Proteopedia

(Difference between revisions)

Revision as of 12:49, 11 August 2016

The crystal structure of transferrin binding protein A (TbpA) from Neisseria meningitidis serogroup B in complex with the C-lobe of human transferrin

Structural highlights

3v89 is a 2 chain structure with sequence from Human and Neimi. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	3v83, 3v8u, 3v8x
Gene:	tbpA (NEIMI), TF, PRO1400 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[TRFE_HUMAN] Defects in TF are the cause of atransferrinemia (ATRAF) [MIM:209300]. Atransferrinemia is rare autosomal recessive disorder characterized by iron overload and hypochromic anemia.^[1] ^[2]

Function

[TRFE_HUMAN] 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.

Publication Abstract from PubMed

Neisseria are obligate human pathogens causing bacterial meningitis, septicaemia and gonorrhoea. Neisseria require iron for survival and can extract it directly from human transferrin for transport across the outer membrane. The transport system consists of TbpA, an integral outer membrane protein, and TbpB, a co-receptor attached to the cell surface; both proteins are potentially important vaccine and therapeutic targets. Two key questions driving Neisseria research are how human transferrin is specifically targeted, and how the bacteria liberate iron from transferrin at neutral pH. To address these questions, we solved crystal structures of the TbpA-transferrin complex and of the corresponding co-receptor TbpB. We characterized the TbpB-transferrin complex by small-angle X-ray scattering and the TbpA-TbpB-transferrin complex by electron microscopy. Our studies provide a rational basis for the specificity of TbpA for human transferrin, show how TbpA promotes iron release from transferrin, and elucidate how TbpB facilitates this process.

Structural basis for iron piracy by pathogenic Neisseria.,Noinaj N, Easley NC, Oke M, Mizuno N, Gumbart J, Boura E, Steere AN, Zak O, Aisen P, Tajkhorshid E, Evans RW, Gorringe AR, Mason AB, Steven AC, Buchanan SK Nature. 2012 Feb 12. doi: 10.1038/nature10823. PMID:22327295^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Beutler E, Gelbart T, Lee P, Trevino R, Fernandez MA, Fairbanks VF. Molecular characterization of a case of atransferrinemia. Blood. 2000 Dec 15;96(13):4071-4. PMID:11110675
↑ Knisely AS, Gelbart T, Beutler E. Molecular characterization of a third case of human atransferrinemia. Blood. 2004 Oct 15;104(8):2607. PMID:15466165 doi:10.1182/blood-2004-05-1751
↑ Noinaj N, Easley NC, Oke M, Mizuno N, Gumbart J, Boura E, Steere AN, Zak O, Aisen P, Tajkhorshid E, Evans RW, Gorringe AR, Mason AB, Steven AC, Buchanan SK. Structural basis for iron piracy by pathogenic Neisseria. Nature. 2012 Feb 12. doi: 10.1038/nature10823. PMID:22327295 doi:10.1038/nature10823

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3v89"

@@ Line 1: / Line 1: @@
 ==The crystal structure of transferrin binding protein A (TbpA) from Neisseria meningitidis serogroup B in complex with the C-lobe of human transferrin==
 <StructureSection load='3v89' size='340' side='right' caption='[[3v89]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3v89]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Neisseria_meningitidis_serogroup_b Neisseria meningitidis serogroup b]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3V89 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3V89 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3v89]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human] and [http://en.wikipedia.org/wiki/Neimi Neimi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3V89 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3V89 FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3v83|3v83]], [[3v8u|3v8u]], [[3v8x|3v8x]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">tbpA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=491 Neisseria meningitidis serogroup B]), TF, PRO1400 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">tbpA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=491 NEIMI]), TF, PRO1400 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=3v89 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3v89 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3v89 RCSB], [http://www.ebi.ac.uk/pdbsum/3v89 PDBsum]</span></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=3v89 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3v89 OCA], [http://pdbe.org/3v89 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3v89 RCSB], [http://www.ebi.ac.uk/pdbsum/3v89 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3v89 ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3v89" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
-[[Category: Neisseria meningitidis serogroup b]]
+[[Category: Neimi]]
 [[Category: Aisen, P]]
 [[Category: Buchanan, S K]]

3v89

From Proteopedia

Revision as of 12:49, 11 August 2016

The crystal structure of transferrin binding protein A (TbpA) from Neisseria meningitidis serogroup B in complex with the C-lobe of human transferrin

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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