Structure and ligand recognition of the phosphotyrosine binding domain of Shc

Nature ◽  
1995 ◽  
Vol 378 (6557) ◽  
pp. 584-592 ◽  
Author(s):  
Ming-Ming Zhou ◽  
Kodimangalam S. Ravichandran ◽  
Edward T. Olejniczak ◽  
Andrew M. Petros ◽  
Robert P. Meadows ◽  
...  
Biochemistry ◽  
2013 ◽  
Vol 52 (10) ◽  
pp. 1686-1693 ◽  
Author(s):  
Magnus Kjaergaard ◽  
Lisbeth Andersen ◽  
Lau Dalby Nielsen ◽  
Kaare Teilum

2004 ◽  
Vol 24 (21) ◽  
pp. 9668-9681 ◽  
Author(s):  
Yan-Fang Liu ◽  
Avia Herschkovitz ◽  
Sigalit Boura-Halfon ◽  
Denise Ronen ◽  
Keren Paz ◽  
...  

ABSTRACT Ser/Thr phosphorylation of insulin receptor substrate (IRS) proteins negatively modulates insulin signaling. Therefore, the identification of serine sites whose phosphorylation inhibit IRS protein functions is of physiological importance. Here we mutated seven Ser sites located proximal to the phosphotyrosine binding domain of insulin receptor substrate 1 (IRS-1) (S265, S302, S325, S336, S358, S407, and S408) into Ala. When overexpressed in rat hepatoma Fao or CHO cells, the mutated IRS-1 protein in which the seven Ser sites were mutated to Ala (IRS-17A), unlike wild-type IRS-1 (IRS-1WT), maintained its Tyr-phosphorylated active conformation after prolonged insulin treatment or when the cells were challenged with inducers of insulin resistance prior to acute insulin treatment. This was due to the ability of IRS-17A to remain complexed with the insulin receptor (IR), unlike IRS-1WT, which underwent Ser phosphorylation, resulting in its dissociation from IR. Studies of truncated forms of IRS-1 revealed that the region between amino acids 365 to 430 is a main insulin-stimulated Ser phosphorylation domain. Indeed, IRS-1 mutated only at S408, which undergoes phosphorylation in vivo, partially maintained the properties of IRS-17A and conferred protection against selected inducers of insulin resistance. These findings suggest that S408 and additional Ser sites among the seven mutated Ser sites are targets for IRS-1 kinases that play a key negative regulatory role in IRS-1 function and insulin action. These sites presumably serve as points of convergence, where physiological feedback control mechanisms, which are triggered by insulin-stimulated IRS kinases, overlap with IRS kinases triggered by inducers of insulin resistance to terminate insulin signaling.


1996 ◽  
Vol 271 (50) ◽  
pp. 31855-31862 ◽  
Author(s):  
Shun-Cheng Li ◽  
Ka-Man Venus Lai ◽  
Gerald D. Gish ◽  
Wendy E. Parris ◽  
Peter van der Geer ◽  
...  

2003 ◽  
Vol 279 (6) ◽  
pp. 4962-4969 ◽  
Author(s):  
Ning Shi ◽  
Sheng Ye ◽  
Mark Bartlam ◽  
Maojun Yang ◽  
Jing Wu ◽  
...  

PLoS ONE ◽  
2012 ◽  
Vol 7 (2) ◽  
pp. e31258 ◽  
Author(s):  
T. Kalle Lundgren ◽  
Katsutoshi Nakahata ◽  
Nicolas Fritz ◽  
Paola Rebellato ◽  
Songbai Zhang ◽  
...  

2003 ◽  
Vol 73 (6) ◽  
pp. 1459-1464 ◽  
Author(s):  
Christina L. Liquori ◽  
Michel J. Berg ◽  
Adrian M. Siegel ◽  
Elizabeth Huang ◽  
Jon S. Zawistowski ◽  
...  

2006 ◽  
Vol 20 (10) ◽  
pp. 2576-2583 ◽  
Author(s):  
Grantley R. Peck ◽  
Siying Ye ◽  
Vi Pham ◽  
Ruani N. Fernando ◽  
S. Lance Macaulay ◽  
...  

Abstract Insulin-regulated aminopeptidase (IRAP), a marker of glucose transporter 4 (GLUT4) storage vesicles (GSVs), is the only protein known to traffic with GLUT4. In the basal state, GSVs are sequestered from the constitutively recycling endosomal system to an insulin-responsive, intracellular pool. Insulin induces a rapid translocation of GSVs to the cell surface from this pool, resulting in the incorporation of IRAP and GLUT4 into the plasma membrane. We sought to identify proteins that interact with IRAP to further understand this GSV trafficking process. This study describes our identification of a novel interaction between the amino terminus of IRAP and the Akt substrate, AS160 (Akt substrate of 160 kDa). The validity of this interaction was confirmed by coimmunoprecipitation of both overexpressed and endogenous proteins. Moreover, confocal microscopy demonstrated colocalization of these proteins. In addition, we demonstrate that the IRAP-binding domain of AS160 falls within its second phosphotyrosine-binding domain and the interaction is not regulated by AS160 phosphorylation. We hypothesize that AS160 is localized to GLUT4-containing vesicles via its interaction with IRAP where it inhibits the activity of Rab substrates in its vicinity, effectively tethering the vesicles intracellularly.


2006 ◽  
Vol 281 (40) ◽  
pp. 29886-29896 ◽  
Author(s):  
T. Kalle Lundgren ◽  
Rizaldy P. Scott ◽  
Matthew Smith ◽  
Tony Pawson ◽  
Patrik Ernfors

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