1eg3: Difference between revisions

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<StructureSection load='1eg3' size='340' side='right'caption='[[1eg3]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
<StructureSection load='1eg3' size='340' side='right'caption='[[1eg3]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1eg3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1EG3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EG3 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1eg3]] is a 1 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=1EG3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EG3 FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1eg4|1eg4]]</div></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]] 2&#8491;</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=1eg3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eg3 OCA], [https://pdbe.org/1eg3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1eg3 RCSB], [https://www.ebi.ac.uk/pdbsum/1eg3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1eg3 ProSAT]</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=1eg3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1eg3 OCA], [https://pdbe.org/1eg3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1eg3 RCSB], [https://www.ebi.ac.uk/pdbsum/1eg3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1eg3 ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[https://www.uniprot.org/uniprot/DMD_HUMAN DMD_HUMAN]] Defects in DMD are the cause of Duchenne muscular dystrophy (DMD) [MIM:[https://omim.org/entry/310200 310200]]. DMD is the most common form of muscular dystrophy; a sex-linked recessive disorder. It typically presents in boys aged 3 to 7 year as proximal muscle weakness causing waddling gait, toe-walking, lordosis, frequent falls, and difficulty in standing up and climbing up stairs. The pelvic girdle is affected first, then the shoulder girdle. Progression is steady and most patients are confined to a wheelchair by age of 10 or 12. Flexion contractures and scoliosis ultimately occur. About 50% of patients have a lower IQ than their genetic expectations would suggest. There is no treatment.<ref>PMID:8401582</ref> <ref>PMID:7981690</ref> <ref>PMID:8817332</ref> <ref>PMID:9851445</ref>  Defects in DMD are the cause of Becker muscular dystrophy (BMD) [MIM:[https://omim.org/entry/300376 300376]]. BMD resembles DMD in hereditary and clinical features but is later in onset and more benign.<ref>PMID:10573008</ref>  Defects in DMD are a cause of cardiomyopathy dilated X-linked type 3B (CMD3B) [MIM:[https://omim.org/entry/302045 302045]]; also known as X-linked dilated cardiomyopathy (XLCM). Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.<ref>PMID:9170407</ref> <ref>PMID:12354438</ref> <ref>PMID:12359139</ref>
[https://www.uniprot.org/uniprot/DMD_HUMAN DMD_HUMAN] Defects in DMD are the cause of Duchenne muscular dystrophy (DMD) [MIM:[https://omim.org/entry/310200 310200]. DMD is the most common form of muscular dystrophy; a sex-linked recessive disorder. It typically presents in boys aged 3 to 7 year as proximal muscle weakness causing waddling gait, toe-walking, lordosis, frequent falls, and difficulty in standing up and climbing up stairs. The pelvic girdle is affected first, then the shoulder girdle. Progression is steady and most patients are confined to a wheelchair by age of 10 or 12. Flexion contractures and scoliosis ultimately occur. About 50% of patients have a lower IQ than their genetic expectations would suggest. There is no treatment.<ref>PMID:8401582</ref> <ref>PMID:7981690</ref> <ref>PMID:8817332</ref> <ref>PMID:9851445</ref>  Defects in DMD are the cause of Becker muscular dystrophy (BMD) [MIM:[https://omim.org/entry/300376 300376]. BMD resembles DMD in hereditary and clinical features but is later in onset and more benign.<ref>PMID:10573008</ref>  Defects in DMD are a cause of cardiomyopathy dilated X-linked type 3B (CMD3B) [MIM:[https://omim.org/entry/302045 302045]; also known as X-linked dilated cardiomyopathy (XLCM). Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.<ref>PMID:9170407</ref> <ref>PMID:12354438</ref> <ref>PMID:12359139</ref>  
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/DMD_HUMAN DMD_HUMAN]] Anchors the extracellular matrix to the cytoskeleton via F-actin. Ligand for dystroglycan. Component of the dystrophin-associated glycoprotein complex which accumulates at the neuromuscular junction (NMJ) and at a variety of synapses in the peripheral and central nervous systems and has a structural function in stabilizing the sarcolemma. Also implicated in signaling events and synaptic transmission.<ref>PMID:16710609</ref>
[https://www.uniprot.org/uniprot/DMD_HUMAN DMD_HUMAN] Anchors the extracellular matrix to the cytoskeleton via F-actin. Ligand for dystroglycan. Component of the dystrophin-associated glycoprotein complex which accumulates at the neuromuscular junction (NMJ) and at a variety of synapses in the peripheral and central nervous systems and has a structural function in stabilizing the sarcolemma. Also implicated in signaling events and synaptic transmission.<ref>PMID:16710609</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=1eg3 ConSurf].
</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=1eg3 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Dystrophin and beta-dystroglycan are components of the dystrophin-glycoprotein complex (DGC), a multimolecular assembly that spans the cell membrane and links the actin cytoskeleton to the extracellular basal lamina. Defects in the dystrophin gene are the cause of Duchenne and Becker muscular dystrophies. The C-terminal region of dystrophin binds the cytoplasmic tail of beta-dystroglycan, in part through the interaction of its WW domain with a proline-rich motif in the tail of beta-dystroglycan. Here we report the crystal structure of this portion of dystrophin in complex with the proline-rich binding site in beta-dystroglycan. The structure shows that the dystrophin WW domain is embedded in an adjacent helical region that contains two EF-hand-like domains. The beta-dystroglycan peptide binds a composite surface formed by the WW domain and one of these EF-hands. Additionally, the structure reveals striking similarities in the mechanisms of proline recognition employed by WW domains and SH3 domains.
Structure of a WW domain containing fragment of dystrophin in complex with beta-dystroglycan.,Huang X, Poy F, Zhang R, Joachimiak A, Sudol M, Eck MJ Nat Struct Biol. 2000 Aug;7(8):634-8. PMID:10932245<ref>PMID:10932245</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1eg3" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Eck, M J]]
[[Category: Eck MJ]]
[[Category: Huang, X]]
[[Category: Huang X]]
[[Category: Joachimiak, A]]
[[Category: Joachimiak A]]
[[Category: Poy, F]]
[[Category: Poy F]]
[[Category: Sudol, M]]
[[Category: Sudol M]]
[[Category: Zhang, R]]
[[Category: Zhang R]]
[[Category: Ef-hand like domain]]
[[Category: Structural protein]]
[[Category: Ww domain]]

Latest revision as of 10:02, 7 February 2024

STRUCTURE OF A DYSTROPHIN WW DOMAIN FRAGMENT IN COMPLEX WITH A BETA-DYSTROGLYCAN PEPTIDESTRUCTURE OF A DYSTROPHIN WW DOMAIN FRAGMENT IN COMPLEX WITH A BETA-DYSTROGLYCAN PEPTIDE

Structural highlights

1eg3 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.
Method:X-ray diffraction, Resolution 2Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

DMD_HUMAN Defects in DMD are the cause of Duchenne muscular dystrophy (DMD) [MIM:310200. DMD is the most common form of muscular dystrophy; a sex-linked recessive disorder. It typically presents in boys aged 3 to 7 year as proximal muscle weakness causing waddling gait, toe-walking, lordosis, frequent falls, and difficulty in standing up and climbing up stairs. The pelvic girdle is affected first, then the shoulder girdle. Progression is steady and most patients are confined to a wheelchair by age of 10 or 12. Flexion contractures and scoliosis ultimately occur. About 50% of patients have a lower IQ than their genetic expectations would suggest. There is no treatment.[1] [2] [3] [4] Defects in DMD are the cause of Becker muscular dystrophy (BMD) [MIM:300376. BMD resembles DMD in hereditary and clinical features but is later in onset and more benign.[5] Defects in DMD are a cause of cardiomyopathy dilated X-linked type 3B (CMD3B) [MIM:302045; also known as X-linked dilated cardiomyopathy (XLCM). Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.[6] [7] [8]

Function

DMD_HUMAN Anchors the extracellular matrix to the cytoskeleton via F-actin. Ligand for dystroglycan. Component of the dystrophin-associated glycoprotein complex which accumulates at the neuromuscular junction (NMJ) and at a variety of synapses in the peripheral and central nervous systems and has a structural function in stabilizing the sarcolemma. Also implicated in signaling events and synaptic transmission.[9]

Evolutionary Conservation

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

See Also

References

  1. ↑ Prior TW, Papp AC, Snyder PJ, Burghes AH, Bartolo C, Sedra MS, Western LM, Mendell JR. A missense mutation in the dystrophin gene in a Duchenne muscular dystrophy patient. Nat Genet. 1993 Aug;4(4):357-60. PMID:8401582 doi:http://dx.doi.org/10.1038/ng0893-357
  2. ↑ Prior TW, Bartolo C, Papp AC, Snyder PJ, Sedra MS, Burghes AH, Mendell JR. Identification of a missense mutation, single base deletion and a polymorphism in the dystrophin exon 16. Hum Mol Genet. 1994 Jul;3(7):1173-4. PMID:7981690
  3. ↑ Lenk U, Oexle K, Voit T, Ancker U, Hellner KA, Speer A, Hubner C. A cysteine 3340 substitution in the dystroglycan-binding domain of dystrophin associated with Duchenne muscular dystrophy, mental retardation and absence of the ERG b-wave. Hum Mol Genet. 1996 Jul;5(7):973-5. PMID:8817332
  4. ↑ Goldberg LR, Hausmanowa-Petrusewicz I, Fidzianska A, Duggan DJ, Steinberg LS, Hoffman EP. A dystrophin missense mutation showing persistence of dystrophin and dystrophin-associated proteins yet a severe phenotype. Ann Neurol. 1998 Dec;44(6):971-6. PMID:9851445 doi:10.1002/ana.410440619
  5. ↑ Eraslan S, Kayserili H, Apak MY, Kirdar B. Identification of point mutations in Turkish DMD/BMD families using multiplex-single stranded conformation analysis (SSCA). Eur J Hum Genet. 1999 Oct-Nov;7(7):765-70. PMID:10573008 doi:10.1038/sj.ejhg.5200370
  6. ↑ Ortiz-Lopez R, Li H, Su J, Goytia V, Towbin JA. Evidence for a dystrophin missense mutation as a cause of X-linked dilated cardiomyopathy. Circulation. 1997 May 20;95(10):2434-40. PMID:9170407
  7. ↑ Feng J, Yan JY, Buzin CH, Sommer SS, Towbin JA. Comprehensive mutation scanning of the dystrophin gene in patients with nonsyndromic X-linked dilated cardiomyopathy. J Am Coll Cardiol. 2002 Sep 18;40(6):1120-4. PMID:12354438
  8. ↑ Feng J, Yan J, Buzin CH, Towbin JA, Sommer SS. Mutations in the dystrophin gene are associated with sporadic dilated cardiomyopathy. Mol Genet Metab. 2002 Sep-Oct;77(1-2):119-26. PMID:12359139
  9. ↑ Haenggi T, Fritschy JM. Role of dystrophin and utrophin for assembly and function of the dystrophin glycoprotein complex in non-muscle tissue. Cell Mol Life Sci. 2006 Jul;63(14):1614-31. PMID:16710609 doi:10.1007/s00018-005-5461-0

1eg3, resolution 2.00Å

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