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5vf9

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Native human manganese superoxide dismutase

Structural highlights

5vf9 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.82Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

SODM_HUMAN Genetic variation in SOD2 is associated with susceptibility to microvascular complications of diabetes type 6 (MVCD6) [MIM:612634. These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis.

Function

SODM_HUMAN Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems.^[1]

Publication Abstract from PubMed

Superoxide dismutases (SODs) are enzymes that play a key role in protecting cells from toxic oxygen metabolites by disproportionation of two molecules of superoxide into molecular oxygen and hydrogen peroxide via cyclic reduction and oxidation at the active site metal. The azide anion is a potent competitive inhibitor that binds directly to the metal and is used as a substrate analog to superoxide in studies of SOD. The crystal structure of human MnSOD-azide complex was solved and shows the putative binding position of superoxide, providing a model for binding to the active site. Azide is bound end-on at the sixth coordinate position of the manganese ion. Tetrameric electrostatic surfaces were calculated incorporating accurate partial charges for the active site in three states, including a state with superoxide coordinated to the metal using the position of azide as a model. These show facilitation of the anionic ligand to the active site pit via a 'valley' of positively-charged surface patches. Surrounding ridges of negative charge help guide the superoxide anion. Within the active site pit, Arg173 and Glu162 further guide and align superoxide for efficient catalysis. Superoxide coordination at the sixth position causes the electrostatic surface of the active site pit to become nearly neutral. A model for electrostatic-mediated diffusion, and efficient binding of superoxide for catalysis is presented.

Substrate-analog binding and electrostatic surfaces of human manganese superoxide dismutase.,Azadmanesh J, Trickel SR, Borgstahl GEO J Struct Biol. 2017 Apr 29. pii: S1047-8477(17)30064-3. doi:, 10.1016/j.jsb.2017.04.011. PMID:28461152^[2]

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

References

↑ MacMillan-Crow LA, Thompson JA. Tyrosine modifications and inactivation of active site manganese superoxide dismutase mutant (Y34F) by peroxynitrite. Arch Biochem Biophys. 1999 Jun 1;366(1):82-8. PMID:10334867 doi:S0003-9861(99)91202-X
↑ Azadmanesh J, Trickel SR, Borgstahl GEO. Substrate-analog binding and electrostatic surfaces of human manganese superoxide dismutase. J Struct Biol. 2017 Apr 29. pii: S1047-8477(17)30064-3. doi:, 10.1016/j.jsb.2017.04.011. PMID:28461152 doi:http://dx.doi.org/10.1016/j.jsb.2017.04.011

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5vf9"

Categories: Homo sapiens | Large Structures | Azadmanesh J | Borgstahl GEO | Trickel SR

@@ Line 3: / Line 3: @@
 <StructureSection load='5vf9' size='340' side='right'caption='[[5vf9]], [[Resolution|resolution]] 1.82&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5vf9]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VF9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VF9 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5vf9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VF9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VF9 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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]] 1.82&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SOD2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Superoxide_dismutase Superoxide dismutase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.15.1.1 1.15.1.1] </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=5vf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vf9 OCA], [https://pdbe.org/5vf9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vf9 RCSB], [https://www.ebi.ac.uk/pdbsum/5vf9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vf9 ProSAT]</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=5vf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vf9 OCA], [http://pdbe.org/5vf9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5vf9 RCSB], [http://www.ebi.ac.uk/pdbsum/5vf9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5vf9 ProSAT]</span></td></tr>
 </table>
 == Disease ==
-[[http://www.uniprot.org/uniprot/SODM_HUMAN SODM_HUMAN]] Genetic variation in SOD2 is associated with susceptibility to microvascular complications of diabetes type 6 (MVCD6) [MIM:[http://omim.org/entry/612634 612634]]. These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis.
+[https://www.uniprot.org/uniprot/SODM_HUMAN SODM_HUMAN] Genetic variation in SOD2 is associated with susceptibility to microvascular complications of diabetes type 6 (MVCD6) [MIM:[https://omim.org/entry/612634 612634]. These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis.
 == Function ==
-[[http://www.uniprot.org/uniprot/SODM_HUMAN SODM_HUMAN]] Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems.<ref>PMID:10334867</ref>
+[https://www.uniprot.org/uniprot/SODM_HUMAN SODM_HUMAN] Destroys superoxide anion radicals which are normally produced within the cells and which are toxic to biological systems.<ref>PMID:10334867</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 24: / Line 23: @@
 ==See Also==
-*[[Superoxide Dismutase|Superoxide Dismutase]]
+*[[Superoxide dismutase 3D structures|Superoxide dismutase 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Superoxide dismutase]]
+[[Category: Azadmanesh J]]
-[[Category: Azadmanesh, J]]
+[[Category: Borgstahl GEO]]
-[[Category: Borgstahl, G E.O]]
+[[Category: Trickel SR]]
-[[Category: Trickel, S R]]
-[[Category: Oxidoreductase]]

5vf9

From Proteopedia

Current revision

Native human manganese superoxide dismutase

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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