1rgw

Solution Structure of ZASP's PDZ domainSolution Structure of ZASP's PDZ domain

Structural highlights

1rgw is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Solution NMR
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

LDB3_HUMAN Defects in LDB3 are the cause of cardiomyopathy dilated type 1C (CMD1C) [MIM:601493. 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.^[1] ^[2] Defects in LDB3 are the cause of left ventricular non-compaction type 3 (LVNC3) [MIM:601493. Left ventricular non-compaction is characterized by numerous prominent trabeculations and deep intertrabecular recesses in hypertrophied and hypokinetic segments of the left ventricle. Defects in LDB3 are the cause of myopathy myofibrillar type 4 (MFM4) [MIM:609452. A neuromuscular disorder characterized by distal and proximal muscle weakness with signs of cardiomyopathy and neuropathy.

Function

LDB3_HUMAN May function as an adapter in striated muscle to couple protein kinase C-mediated signaling via its LIM domains to the cytoskeleton.[:]

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

Z band alternately spliced PDZ-containing protein (ZASP) is a sarcomere Z disk protein expressed in human cardiac and skeletal muscle that is thought to be involved in a dominant familial dilated cardiomyopathy. The N-terminal PDZ domain of ZASP interacts with the C terminus of alpha-actinin-2, the major component of the Z disk, probably by forming a ternary complex with titin Z repeats. We have determined the structure of ZASP PDZ by NMR and showed that it is a classical class 1 PDZ domain that recognizes the carboxy-terminal sequence of an alpha-actinin-2 calmodulin-like domain with micromolar affinity. We also characterized the role of each component in the ternary complex ZASP/alpha-actinin-2/titin, showing that the alpha-actinin-2/ZASP PDZ interaction involves a binding surface distinct from that recognized by the titin Z repeats. ZASP PDZ structure was used to model other members of the enigma family by homology and to predict their abilities to bind alpha-actinin-2.

Solution structure of ZASP PDZ domain; implications for sarcomere ultrastructure and enigma family redundancy.,Au Y, Atkinson RA, Guerrini R, Kelly G, Joseph C, Martin SR, Muskett FW, Pallavicini A, Faulkner G, Pastore A Structure. 2004 Apr;12(4):611-22. PMID:15062084^[3]

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

References

↑ Vatta M, Mohapatra B, Jimenez S, Sanchez X, Faulkner G, Perles Z, Sinagra G, Lin JH, Vu TM, Zhou Q, Bowles KR, Di Lenarda A, Schimmenti L, Fox M, Chrisco MA, Murphy RT, McKenna W, Elliott P, Bowles NE, Chen J, Valle G, Towbin JA. Mutations in Cypher/ZASP in patients with dilated cardiomyopathy and left ventricular non-compaction. J Am Coll Cardiol. 2003 Dec 3;42(11):2014-27. PMID:14662268
↑ Arimura T, Hayashi T, Terada H, Lee SY, Zhou Q, Takahashi M, Ueda K, Nouchi T, Hohda S, Shibutani M, Hirose M, Chen J, Park JE, Yasunami M, Hayashi H, Kimura A. A Cypher/ZASP mutation associated with dilated cardiomyopathy alters the binding affinity to protein kinase C. J Biol Chem. 2004 Feb 20;279(8):6746-52. Epub 2003 Dec 3. PMID:14660611 doi:10.1074/jbc.M311849200
↑ Au Y, Atkinson RA, Guerrini R, Kelly G, Joseph C, Martin SR, Muskett FW, Pallavicini A, Faulkner G, Pastore A. Solution structure of ZASP PDZ domain; implications for sarcomere ultrastructure and enigma family redundancy. Structure. 2004 Apr;12(4):611-22. PMID:15062084 doi:10.1016/j.str.2004.02.019

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OCA

[1] Vatta M, Mohapatra B, Jimenez S, Sanchez X, Faulkner G, Perles Z, Sinagra G, Lin JH, Vu TM, Zhou Q, Bowles KR, Di Lenarda A, Schimmenti L, Fox M, Chrisco MA, Murphy RT, McKenna W, Elliott P, Bowles NE, Chen J, Valle G, Towbin JA. Mutations in Cypher/ZASP in patients with dilated cardiomyopathy and left ventricular non-compaction. J Am Coll Cardiol. 2003 Dec 3;42(11):2014-27. PMID:14662268

[2] Arimura T, Hayashi T, Terada H, Lee SY, Zhou Q, Takahashi M, Ueda K, Nouchi T, Hohda S, Shibutani M, Hirose M, Chen J, Park JE, Yasunami M, Hayashi H, Kimura A. A Cypher/ZASP mutation associated with dilated cardiomyopathy alters the binding affinity to protein kinase C. J Biol Chem. 2004 Feb 20;279(8):6746-52. Epub 2003 Dec 3. PMID:14660611 doi:10.1074/jbc.M311849200

[3] Au Y, Atkinson RA, Guerrini R, Kelly G, Joseph C, Martin SR, Muskett FW, Pallavicini A, Faulkner G, Pastore A. Solution structure of ZASP PDZ domain; implications for sarcomere ultrastructure and enigma family redundancy. Structure. 2004 Apr;12(4):611-22. PMID:15062084 doi:10.1016/j.str.2004.02.019

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