1n19

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: 200px<br /> <applet load="1n19" size="450" color="white" frame="true" align="right" spinBox="true" caption="1n19, resolution 1.86&Aring;" /> '''Structure of the HS...)
Current revision (08:44, 10 April 2024) (edit) (undo)
 
(17 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1n19.gif|left|200px]]<br />
 
-
<applet load="1n19" size="450" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1n19, resolution 1.86&Aring;" />
 
-
'''Structure of the HSOD A4V mutant'''<br />
 
-
==Overview==
+
==Structure of the HSOD A4V mutant==
-
Mutations in human superoxide dismutase (HSOD) have been linked to the, familial form of amyotrophic lateral sclerosis (FALS). Amyotrophic lateral, sclerosis (ALS or Lou Gehrig's disease) is one of the most common, neurodegenerative disorders in humans. In ALS patients, selective killing, of motor neurons leads to progressive paralysis and death within one to, five years of onset. The most frequent FALS mutation in HSOD, Ala4--&gt;Val, is associated with the most rapid disease progression. Here we identify, and characterize key differences in the stability between the A4V mutant, protein and its thermostable parent (HSOD-AS), in which free cysteine, residues were mutated to eliminate interferences from cysteine oxidation., Denaturation studies reveal that A4V unfolds at a guanidine-HCl, concentration 1M lower than HSOD-AS, revealing that A4V is significantly, less stable than HSOD-AS. Determination and analysis of the, crystallographic structures of A4V and HSOD-AS reveal structural features, likely responsible for the loss of architectural stability of A4V observed, in the denaturation experiments. The combined structural and biophysical, results presented here argue that architectural destabilization of the, HSOD protein may underlie the toxic function of the many HSOD FALS, mutations.
+
<StructureSection load='1n19' size='340' side='right'caption='[[1n19]], [[Resolution|resolution]] 1.86&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[1n19]] 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=1N19 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1N19 FirstGlance]. <br>
 +
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.86&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CU1:COPPER+(I)+ION'>CU1</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1n19 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n19 OCA], [https://pdbe.org/1n19 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1n19 RCSB], [https://www.ebi.ac.uk/pdbsum/1n19 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1n19 ProSAT]</span></td></tr>
 +
</table>
 +
== Disease ==
 +
[https://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN] Defects in SOD1 are the cause of amyotrophic lateral sclerosis type 1 (ALS1) [MIM:[https://omim.org/entry/105400 105400]. ALS1 is a familial form of amyotrophic lateral sclerosis, a neurodegenerative disorder affecting upper and lower motor neurons and resulting in fatal paralysis. Sensory abnormalities are absent. Death usually occurs within 2 to 5 years. The etiology of amyotrophic lateral sclerosis is likely to be multifactorial, involving both genetic and environmental factors. The disease is inherited in 5-10% of cases leading to familial forms.<ref>PMID:12963370</ref> <ref>PMID:19741096</ref> <ref>PMID:8528216</ref> <ref>PMID:8682505</ref> <ref>PMID:9541385</ref> <ref>PMID:12754496</ref> <ref>PMID:15056757</ref> <ref>PMID:18378676</ref> [:]<ref>PMID:8446170</ref> <ref>PMID:8351519</ref> <ref>PMID:8179602</ref> <ref>PMID:7980516</ref> <ref>PMID:8069312</ref> <ref>PMID:7951252</ref> <ref>PMID:7881433</ref> <ref>PMID:7836951</ref> <ref>PMID:7997024</ref> <ref>PMID:7870076</ref> <ref>PMID:7887412</ref> <ref>PMID:7795609</ref> <ref>PMID:7655468</ref> <ref>PMID:7655469</ref> <ref>PMID:7655471</ref> <ref>PMID:7700376</ref> <ref>PMID:7647793</ref> <ref>PMID:7501156</ref> <ref>PMID:7496169</ref> <ref>PMID:8938700</ref> <ref>PMID:8907321</ref> <ref>PMID:8990014</ref> <ref>PMID:9101297</ref> <ref>PMID:9455977</ref> <ref>PMID:10732812</ref> <ref>PMID:9131652</ref> <ref>PMID:10400992</ref> <ref>PMID:10430435</ref> <ref>PMID:11535232</ref> <ref>PMID:11369193</ref> <ref>PMID:12402272</ref> <ref>PMID:12145308</ref> <ref>PMID:14506936</ref> <ref>PMID:18552350</ref> <ref>PMID:18301754</ref> <ref>PMID:21247266</ref> <ref>PMID:21220647</ref>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/SODC_HUMAN SODC_HUMAN] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n1/1n19_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</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/main_output.php?pdb_ID=1n19 ConSurf].
 +
<div style="clear:both"></div>
-
==Disease==
+
==See Also==
-
Known disease associated with this structure: Amyotrophic lateral sclerosis, due to SOD1 deficiency OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147450 147450]]
+
*[[Superoxide dismutase 3D structures|Superoxide dismutase 3D structures]]
-
 
+
== References ==
-
==About this Structure==
+
<references/>
-
1N19 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] with CU1, ZN and SO4 as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [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] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1N19 OCA].
+
__TOC__
-
 
+
</StructureSection>
-
==Reference==
+
-
Insights into Lou Gehrig's disease from the structure and instability of the A4V mutant of human Cu,Zn superoxide dismutase., Cardoso RM, Thayer MM, DiDonato M, Lo TP, Bruns CK, Getzoff ED, Tainer JA, J Mol Biol. 2002 Nov 22;324(2):247-56. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12441104 12441104]
+
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
-
[[Category: Single protein]]
+
[[Category: Large Structures]]
-
[[Category: Superoxide dismutase]]
+
[[Category: Bruns CK]]
-
[[Category: Bruns, C.K.]]
+
[[Category: Cardoso RMF]]
-
[[Category: Cardoso, R.M.F.]]
+
[[Category: DiDonato M]]
-
[[Category: DiDonato, M.]]
+
[[Category: Getzoff ED]]
-
[[Category: Getzoff, E.D.]]
+
[[Category: Lo TP]]
-
[[Category: Lo, T.P.]]
+
[[Category: Tainer JA]]
-
[[Category: Tainer, J.A.]]
+
[[Category: Thayer MM]]
-
[[Category: Thayer, M.M.]]
+
-
[[Category: CU1]]
+
-
[[Category: SO4]]
+
-
[[Category: ZN]]
+
-
[[Category: greek key beta-barrel]]
+
-
 
+
-
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 18:16:45 2007''
+

Current revision

Structure of the HSOD A4V mutant

PDB ID 1n19

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools