3u23

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Template:STRUCTURE 3u23

Contents 1 Atomic resolution crystal structure of the 2nd SH3 domain from human CD2AP (CMS) in complex with a proline-rich peptide from human RIN3 2 Disease 3 Function 4 About this Structure 5 Reference

Atomic resolution crystal structure of the 2nd SH3 domain from human CD2AP (CMS) in complex with a proline-rich peptide from human RIN3

Disease

[CD2AP_HUMAN] Defects in CD2AP are the cause of susceptibility to focal segmental glomerulosclerosis type 3 (FSGS3) [MIM:607832]. A renal pathology defined by the presence of segmental sclerosis in glomeruli and resulting in proteinuria, reduced glomerular filtration rate and edema. Renal insufficiency often progresses to end-stage renal disease, a highly morbid state requiring either dialysis therapy or kidney transplantation.^[1]

Function

[CD2AP_HUMAN] Seems to act as an adapter protein between membrane proteins and the actin cytoskeleton. May play a role in receptor clustering and cytoskeletal polarity in the junction between T-cell and antigen-presenting cell. May anchor the podocyte slit diaphragm to the actin cytoskeleton in renal glomerolus. Also required for cytokinesis.^[2] [RIN3_HUMAN] Ras effector protein that functions as a guanine nucleotide exchange (GEF) for RAB5B and RAB31, by exchanging bound GDP for free GTP. Required for normal RAB31 function.^[3][4]

About this Structure

3u23 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

1. ↑ Kim JM, Wu H, Green G, Winkler CA, Kopp JB, Miner JH, Unanue ER, Shaw AS. CD2-associated protein haploinsufficiency is linked to glomerular disease susceptibility. Science. 2003 May 23;300(5623):1298-300. PMID:12764198 doi:10.1126/science.1081068
2. ↑ Monzo P, Gauthier NC, Keslair F, Loubat A, Field CM, Le Marchand-Brustel Y, Cormont M. Clues to CD2-associated protein involvement in cytokinesis. Mol Biol Cell. 2005 Jun;16(6):2891-902. Epub 2005 Mar 30. PMID:15800069 doi:E04-09-0773
3. ↑ Kajiho H, Saito K, Tsujita K, Kontani K, Araki Y, Kurosu H, Katada T. RIN3: a novel Rab5 GEF interacting with amphiphysin II involved in the early endocytic pathway. J Cell Sci. 2003 Oct 15;116(Pt 20):4159-68. PMID:12972505 doi:http://dx.doi.org/10.1242/jcs.00718
4. ↑ Kajiho H, Sakurai K, Minoda T, Yoshikawa M, Nakagawa S, Fukushima S, Kontani K, Katada T. Characterization of RIN3 as a guanine nucleotide exchange factor for the Rab5 subfamily GTPase Rab31. J Biol Chem. 2011 Jul 8;286(27):24364-73. doi: 10.1074/jbc.M110.172445. Epub 2011, May 17. PMID:21586568 doi:10.1074/jbc.M110.172445