- EMDB-28693: Cryo-EM structure of two IGF1 bound full-length mouse IGF1R mutan... -
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データベース: EMDB / ID: EMD-28693
タイトル
Cryo-EM structure of two IGF1 bound full-length mouse IGF1R mutant (four glycine residues inserted in the alpha-CT; IGF1R-P674G4): symmetric conformation
マップデータ
Cryo-EM structure of two IGF1 bound full-length mouse IGF1R mutant (four glycine residues inserted in the alpha-CT; IGF1R-P674G4): symmetric conformation
試料
複合体: Two IGF1 bound full-length mouse IGF1R mutant (four glycine residues inserted in the alpha-CT; IGF1R-P674G4): symmetric conformation
タンパク質・ペプチド: Insulin-like growth factor 1 receptor
タンパク質・ペプチド: Insulin-like growth factor I
キーワード
IGF1R / IGF1 / SIGNALING PROTEIN
機能・相同性
機能・相同性情報
Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R) / IRS-related events triggered by IGF1R / SHC-related events triggered by IGF1R / mitotic nuclear division / glycolate metabolic process / muscle hypertrophy / negative regulation of oocyte development / insulin-like growth factor binding protein complex / insulin-like growth factor ternary complex / positive regulation of trophectodermal cell proliferation ...Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R) / IRS-related events triggered by IGF1R / SHC-related events triggered by IGF1R / mitotic nuclear division / glycolate metabolic process / muscle hypertrophy / negative regulation of oocyte development / insulin-like growth factor binding protein complex / insulin-like growth factor ternary complex / positive regulation of trophectodermal cell proliferation / prostate gland stromal morphogenesis / positive regulation of type B pancreatic cell proliferation / positive regulation of glycoprotein biosynthetic process / type II pneumocyte differentiation / neuronal dense core vesicle lumen / proteoglycan biosynthetic process / regulation of establishment or maintenance of cell polarity / chondroitin sulfate proteoglycan biosynthetic process / insulin-like growth factor receptor activity / myotube cell development / positive regulation of transcription regulatory region DNA binding / Extra-nuclear estrogen signaling / negative regulation of neuroinflammatory response / insulin-like growth factor binding / Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R) / skeletal muscle satellite cell maintenance involved in skeletal muscle regeneration / bone mineralization involved in bone maturation / positive regulation of cell growth involved in cardiac muscle cell development / IRS-related events triggered by IGF1R / negative regulation of vascular associated smooth muscle cell apoptotic process / positive regulation of cerebellar granule cell precursor proliferation / exocytic vesicle / lung vasculature development / cerebellar granule cell precursor proliferation / positive regulation of myoblast proliferation / positive regulation of meiotic cell cycle / lung lobe morphogenesis / positive regulation of myelination / negative regulation of androgen receptor signaling pathway / cell activation / positive regulation of developmental growth / glial cell differentiation / positive regulation of calcineurin-NFAT signaling cascade / prostate gland epithelium morphogenesis / male sex determination / prostate gland growth / transmembrane receptor protein tyrosine kinase activator activity / type B pancreatic cell proliferation / mammary gland development / exocrine pancreas development / alphav-beta3 integrin-IGF-1-IGF1R complex / myoblast differentiation / cell surface receptor signaling pathway via STAT / positive regulation of Ras protein signal transduction / regulation of nitric oxide biosynthetic process / positive regulation of insulin-like growth factor receptor signaling pathway / positive regulation of smooth muscle cell migration / growth hormone receptor signaling pathway / positive regulation of DNA binding / negative regulation of interleukin-1 beta production / adrenal gland development / lung alveolus development / muscle organ development / cellular response to insulin-like growth factor stimulus / positive regulation of cardiac muscle hypertrophy / branching morphogenesis of an epithelial tube / androgen receptor signaling pathway / prostate epithelial cord arborization involved in prostate glandular acinus morphogenesis / negative regulation of release of cytochrome c from mitochondria / type I pneumocyte differentiation / negative regulation of amyloid-beta formation / negative regulation of smooth muscle cell apoptotic process / positive regulation of activated T cell proliferation / inner ear development / myoblast proliferation / insulin receptor substrate binding / negative regulation of tumor necrosis factor production / epithelial to mesenchymal transition / blood vessel remodeling / Synthesis, secretion, and deacylation of Ghrelin / epidermis development / activation of protein kinase B activity / positive regulation of glycogen biosynthetic process / positive regulation of osteoblast differentiation / SHC-related events triggered by IGF1R / postsynaptic modulation of chemical synaptic transmission / phosphatidylinositol 3-kinase binding / negative regulation of MAPK cascade / positive regulation of vascular associated smooth muscle cell proliferation / insulin-like growth factor receptor binding / extrinsic apoptotic signaling pathway in absence of ligand / T-tubule / positive regulation of smooth muscle cell proliferation / positive regulation of mitotic nuclear division / negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / insulin-like growth factor receptor signaling pathway / platelet alpha granule lumen / positive regulation of glycolytic process / animal organ morphogenesis / positive regulation of epithelial cell proliferation 類似検索 - 分子機能
Insulin-like growth factor I / Insulin-like growth factor / Tyrosine-protein kinase, insulin-like receptor / Tyrosine-protein kinase, receptor class II, conserved site / Receptor tyrosine kinase class II signature. / Insulin family / Insulin-like / Insulin/IGF/Relaxin family / Insulin / insulin-like growth factor / relaxin family. / Insulin, conserved site ...Insulin-like growth factor I / Insulin-like growth factor / Tyrosine-protein kinase, insulin-like receptor / Tyrosine-protein kinase, receptor class II, conserved site / Receptor tyrosine kinase class II signature. / Insulin family / Insulin-like / Insulin/IGF/Relaxin family / Insulin / insulin-like growth factor / relaxin family. / Insulin, conserved site / Insulin family signature. / Insulin-like superfamily / Receptor L-domain / Furin-like cysteine-rich domain / Receptor L-domain superfamily / Furin-like cysteine rich region / Receptor L domain / Furin-like repeat / Furin-like repeats / Growth factor receptor cysteine-rich domain superfamily / : / Fibronectin type 3 domain / Fibronectin type-III domain profile. / Fibronectin type III / Fibronectin type III superfamily / Tyrosine-protein kinase, catalytic domain / Tyrosine kinase, catalytic domain / Tyrosine protein kinases specific active-site signature. / Tyrosine-protein kinase, active site / Serine-threonine/tyrosine-protein kinase, catalytic domain / Protein tyrosine and serine/threonine kinase / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Immunoglobulin-like fold / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily 類似検索 - ドメイン・相同性
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01GM136976
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R35GM142937
米国
引用
ジャーナル: Elife / 年: 2022 タイトル: Molecular basis for the role of disulfide-linked αCTs in the activation of insulin-like growth factor 1 receptor and insulin receptor. 著者: Jie Li / Jiayi Wu / Catherine Hall / Xiao-Chen Bai / Eunhee Choi / 要旨: The insulin receptor (IR) and insulin-like growth factor 1 receptor (IGF1R) control metabolic homeostasis and cell growth and proliferation. The IR and IGF1R form similar disulfide bonds linked ...The insulin receptor (IR) and insulin-like growth factor 1 receptor (IGF1R) control metabolic homeostasis and cell growth and proliferation. The IR and IGF1R form similar disulfide bonds linked homodimers in the apo-state; however, their ligand binding properties and the structures in the active state differ substantially. It has been proposed that the disulfide-linked C-terminal segment of α-chain (αCTs) of the IR and IGF1R control the cooperativity of ligand binding and regulate the receptor activation. Nevertheless, the molecular basis for the roles of disulfide-linked αCTs in IR and IGF1R activation are still unclear. Here, we report the cryo-EM structures of full-length mouse IGF1R/IGF1 and IR/insulin complexes with modified αCTs that have increased flexibility. Unlike the -shaped asymmetric IGF1R dimer with a single IGF1 bound, the IGF1R with the enhanced flexibility of αCTs can form a -shaped symmetric dimer with two IGF1s bound. Meanwhile, the IR with non-covalently linked αCTs predominantly adopts an asymmetric conformation with four insulins bound, which is distinct from the -shaped symmetric IR. Using cell-based experiments, we further showed that both IGF1R and IR with the modified αCTs cannot activate the downstream signaling potently. Collectively, our studies demonstrate that the certain structural rigidity of disulfide-linked αCTs is critical for optimal IR and IGF1R signaling activation.
#195 - 2016年3月 RAFタンパク質キナーゼ (RAF Protein Kinases) 類似性 (1)
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ダウンロード / ファイル: emd_28693.map.gz / 形式: CCP4 / 大きさ: 178 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Cryo-EM structure of two IGF1 bound full-length mouse IGF1R mutant (four glycine residues inserted in the alpha-CT; IGF1R-P674G4): symmetric conformation