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2j5w

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Revision as of 06:28, 11 September 2015

CERULOPLASMIN REVISITED: STRUCTURAL AND FUNCTIONAL ROLES OF VARIOUS METAL CATION BINDING SITES

Structural highlights

2j5w is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , ,
Related:	1kcw
Activity:	Ferroxidase, with EC number 1.16.3.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Disease

[CERU_HUMAN] Defects in CP are the cause of aceruloplasminemia (ACERULOP) [MIM:604290]. It is an autosomal recessive disorder of iron metabolism characterized by iron accumulation in the brain as well as visceral organs. Clinical features consist of the triad of retinal degeneration, diabetes mellitus and neurological disturbances. Note=Ceruloplasmin levels are decreased in Wilson disease, in which copper cannot be incorporated into ceruloplasmin in liver because of defects in the copper-transporting ATPase 2.

Function

[CERU_HUMAN] Ceruloplasmin is a blue, copper-binding (6-7 atoms per molecule) glycoprotein. It has ferroxidase activity oxidizing Fe(2+) to Fe(3+) without releasing radical oxygen species. It is involved in iron transport across the cell membrane. Provides Cu(2+) ions for the ascorbate-mediated deaminase degradation of the heparan sulfate chains of GPC1. May also play a role in fetal lung development or pulmonary antioxidant defense (By similarity).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The three-dimensional molecular structure of human serum ceruloplasmin has been reinvestigated using X-ray synchrotron data collected at 100 K from a crystal frozen to liquid-nitrogen temperature. The resulting model, with an increase in resolution from 3.1 to 2.8 A, gives an overall improvement of the molecular structure, in particular the side chains. In addition, it enables the clear definition of previously unidentified Ca2+-binding and Na+-binding sites. The Ca2+ cation is located in domain 1 in a configuration very similar to that found in the activated bovine factor Va. The Na+ sites appear to play a structural role in providing rigidity to the three protuberances on the top surface of the molecule. These features probably help to steer substrates towards the mononuclear copper sites prior to their oxidation and to restrict the size of the approaching substrate. The trinuclear copper centre appears to differ from the room-temperature structure in that a dioxygen moiety is bound in a similar way to that found in the endospore coat protein CotA from Bacillus subtilis.

Ceruloplasmin revisited: structural and functional roles of various metal cation-binding sites.,Bento I, Peixoto C, Zaitsev VN, Lindley PF Acta Crystallogr D Biol Crystallogr. 2007 Feb;63(Pt 2):240-8. Epub 2007, Jan 16. PMID:17242517^[1]

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

References

↑ Bento I, Peixoto C, Zaitsev VN, Lindley PF. Ceruloplasmin revisited: structural and functional roles of various metal cation-binding sites. Acta Crystallogr D Biol Crystallogr. 2007 Feb;63(Pt 2):240-8. Epub 2007, Jan 16. PMID:17242517 doi:10.1107/S090744490604947X

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2j5w"

@@ Line 6: / Line 6: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1kcw|1kcw]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ferroxidase Ferroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.16.3.1 1.16.3.1] </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=2j5w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j5w OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2j5w RCSB], [http://www.ebi.ac.uk/pdbsum/2j5w 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=2j5w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j5w OCA], [http://pdbe.org/2j5w PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2j5w RCSB], [http://www.ebi.ac.uk/pdbsum/2j5w PDBsum]</span></td></tr>
 </table>
 == Disease ==
@@ Line 30: / Line 30: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2j5w" style="background-color:#fffaf0;"></div>
 ==See Also==

2j5w

From Proteopedia

Revision as of 06:28, 11 September 2015

CERULOPLASMIN REVISITED: STRUCTURAL AND FUNCTIONAL ROLES OF VARIOUS METAL CATION BINDING SITES

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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