This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

2zqq

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:25, 18 October 2018

Crystal structure of human AUH (3-methylglutaconyl-coa hydratase) mixed with (AUUU)24A RNA

Structural highlights

2zqq is a 6 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1hzd, 1v4m, 2e8k
Gene:	AUH (HUMAN)
Activity:	Methylglutaconyl-CoA hydratase, with EC number 4.2.1.18
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT, TOPSAN

Disease

[AUHM_HUMAN] Defects in AUH are the cause of 3-methylglutaconic aciduria type 1 (MGA1) [MIM:250950]. MGA1 is an inborn error of leucine metabolism. It leads to an autosomal recessive syndrome with variable clinical phenotype, ranging from delayed speech development to severe psychomotor retardation, coma, failure to thrive, metabolic acidosis and dystonia. MGA1 can be distinguished from other forms of MGA by the pattern of metabolite excretion: 3-methylglutaconic acid levels are higher than those detected in other forms, whereas methylglutaric acid levels are usually only slightly elevated, and there is a high level of 3-hydroxyisovaleric acid excretion (not present in other MGA forms).^[1] ^[2]

Function

[AUHM_HUMAN] Catalyzes the conversion of 3-methylglutaconyl-CoA to 3-hydroxy-3-methylglutaryl-CoA. Has very low enoyl-CoA hydratase activity. Was originally identified as RNA-binding protein that binds in vitro to clustered 5'-AUUUA-3' motifs.^[3] ^[4] ^[5] ^[6]

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 human AU RNA binding protein/enoyl-Coenzyme A hydratase (AUH) is a 3-hydroxy-3-methylglutaconyl-CoA dehydratase in the leucine degradation pathway. It also possesses an RNA-binding activity to AUUU repeats, which involves no known conserved RNA-binding domains and is seemingly unrelated to the enzymatic activity. In this study, we performed mass spectrometric analyses to elucidate the oligomeric states of AUH in the presence and absence of RNA. With a short RNA (AUUU) or without RNA, AUH mainly exists as a trimer in solution. On the other hand, the AUH trimer dimerizes upon binding to one molecule of a long RNA containing 24 repeats of the AUUU motif, (AUUU)(24)A. AUH was crystallized with the long RNA. Although the RNA was disordered in the crystalline lattice, the AUH structure was determined as an asymmetric dimer of trimers with a kink in the alignment of the trimer axes, resulting in the formation of two clefts with significantly different sizes.

AU-rich RNA-binding induces changes in the quaternary structure of AUH.,Kurimoto K, Kuwasako K, Sandercock AM, Unzai S, Robinson CV, Muto Y, Yokoyama S Proteins. 2009 May 1;75(2):360-72. PMID:18831052^[7]

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

References

↑ IJlst L, Loupatty FJ, Ruiter JP, Duran M, Lehnert W, Wanders RJ. 3-Methylglutaconic aciduria type I is caused by mutations in AUH. Am J Hum Genet. 2002 Dec;71(6):1463-6. Epub 2002 Nov 14. PMID:12434311 doi:S0002-9297(07)60868-4
↑ Ly TB, Peters V, Gibson KM, Liesert M, Buckel W, Wilcken B, Carpenter K, Ensenauer R, Hoffmann GF, Mack M, Zschocke J. Mutations in the AUH gene cause 3-methylglutaconic aciduria type I. Hum Mutat. 2003 Apr;21(4):401-7. PMID:12655555 doi:10.1002/humu.10202
↑ Nakagawa J, Waldner H, Meyer-Monard S, Hofsteenge J, Jeno P, Moroni C. AUH, a gene encoding an AU-specific RNA binding protein with intrinsic enoyl-CoA hydratase activity. Proc Natl Acad Sci U S A. 1995 Mar 14;92(6):2051-5. PMID:7892223
↑ IJlst L, Loupatty FJ, Ruiter JP, Duran M, Lehnert W, Wanders RJ. 3-Methylglutaconic aciduria type I is caused by mutations in AUH. Am J Hum Genet. 2002 Dec;71(6):1463-6. Epub 2002 Nov 14. PMID:12434311 doi:S0002-9297(07)60868-4
↑ Kurimoto K, Fukai S, Nureki O, Muto Y, Yokoyama S. Crystal structure of human AUH protein, a single-stranded RNA binding homolog of enoyl-CoA hydratase. Structure. 2001 Dec;9(12):1253-63. PMID:11738050
↑ Ly TB, Peters V, Gibson KM, Liesert M, Buckel W, Wilcken B, Carpenter K, Ensenauer R, Hoffmann GF, Mack M, Zschocke J. Mutations in the AUH gene cause 3-methylglutaconic aciduria type I. Hum Mutat. 2003 Apr;21(4):401-7. PMID:12655555 doi:10.1002/humu.10202
↑ Kurimoto K, Kuwasako K, Sandercock AM, Unzai S, Robinson CV, Muto Y, Yokoyama S. AU-rich RNA-binding induces changes in the quaternary structure of AUH. Proteins. 2009 May 1;75(2):360-72. PMID:18831052 doi:10.1002/prot.22246

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==Crystal structure of human AUH (3-methylglutaconyl-coa hydratase) mixed with (AUUU)24A RNA==
 <StructureSection load='2zqq' size='340' side='right' caption='[[2zqq]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">AUH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Methylglutaconyl-CoA_hydratase Methylglutaconyl-CoA hydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.18 4.2.1.18] </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=2zqq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zqq OCA], [http://pdbe.org/2zqq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zqq RCSB], [http://www.ebi.ac.uk/pdbsum/2zqq PDBsum], [http://www.topsan.org/Proteins/RSGI/2zqq TOPSAN]</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=2zqq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zqq OCA], [http://pdbe.org/2zqq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zqq RCSB], [http://www.ebi.ac.uk/pdbsum/2zqq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zqq ProSAT], [http://www.topsan.org/Proteins/RSGI/2zqq TOPSAN]</span></td></tr>
 </table>
 == Disease ==
@@ Line 16: / Line 17: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zq/2zqq_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zq/2zqq_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2zqq

From Proteopedia

Revision as of 07:25, 18 October 2018

Crystal structure of human AUH (3-methylglutaconyl-coa hydratase) mixed with (AUUU)24A RNA

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox