6HN5

Leucine-zippered human insulin receptor ectodomain with single bound insulin - "upper" membrane-distal part


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.1 of the entry. See complete history


Literature

The signalling conformation of the insulin receptor ectodomain.

Weis, F.Menting, J.G.Margetts, M.B.Chan, S.J.Xu, Y.Tennagels, N.Wohlfart, P.Langer, T.Muller, C.W.Dreyer, M.K.Lawrence, M.C.

(2018) Nat Commun 9: 4420-4420

  • DOI: 10.1038/s41467-018-06826-6
  • Primary Citation of Related Structures:  
    6HN4, 6HN5

  • PubMed Abstract: 
  • Understanding the structural biology of the insulin receptor and how it signals is of key importance in the development of insulin analogs to treat diabetes. We report here a cryo-electron microscopy structure of a single insulin bound to a physiologically relevant, high-affinity version of the receptor ectodomain, the latter generated through attachment of C-terminal leucine zipper elements to overcome the conformational flexibility associated with ectodomain truncation ...

    Understanding the structural biology of the insulin receptor and how it signals is of key importance in the development of insulin analogs to treat diabetes. We report here a cryo-electron microscopy structure of a single insulin bound to a physiologically relevant, high-affinity version of the receptor ectodomain, the latter generated through attachment of C-terminal leucine zipper elements to overcome the conformational flexibility associated with ectodomain truncation. The resolution of the cryo-electron microscopy maps is 3.2 Å in the insulin-binding region and 4.2 Å in the membrane-proximal region. The structure reveals how the membrane proximal domains of the receptor come together to effect signalling and how insulin's negative cooperativity of binding likely arises. Our structure further provides insight into the high affinity of certain super-mitogenic insulins. Together, these findings provide a new platform for insulin analog investigation and design.


    Organizational Affiliation

    Department of Medical Biology, University of Melbourne, Royal Parade, Parkville, Victoria, 3050, Australia. lawrence@wehi.edu.au.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
InsulinA21Homo sapiensMutation(s): 0 
Gene Names: INS
UniProt & NIH Common Fund Data Resources
Find proteins for P01308 (Homo sapiens)
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Go to UniProtKB:  P01308
PHAROS:  P01308
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UniProt GroupP01308
Protein Feature View
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
InsulinB30Homo sapiensMutation(s): 0 
Gene Names: INS
UniProt & NIH Common Fund Data Resources
Find proteins for P01308 (Homo sapiens)
Explore P01308 
Go to UniProtKB:  P01308
PHAROS:  P01308
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UniProt GroupP01308
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Insulin receptor,General control protein GCN4C [auth E],
D [auth F]
930Homo sapiensSaccharomyces cerevisiae S288CMutation(s): 7 
Gene Names: INSRGCN4AAS3ARG9YEL009C
EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Go to UniProtKB:  P03069
Find proteins for P06213 (Homo sapiens)
Explore P06213 
Go to UniProtKB:  P06213
PHAROS:  P06213
GTEx:  ENSG00000171105 
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UniProt GroupsP06213P03069
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Oligosaccharides

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Entity ID: 4
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseE [auth C]2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (Australia)AustraliaAPP1099595
National Health and Medical Research Council (Australia)AustraliaAPP1128553
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)United StatesDK013914
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)United StatesUC DRTC DK020595

Revision History  (Full details and data files)

  • Version 1.0: 2018-11-21
    Type: Initial release
  • Version 1.1: 2019-11-06
    Changes: Data collection, Refinement description
  • Version 1.2: 2019-12-11
    Changes: Other
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2022-03-30
    Changes: Author supporting evidence, Database references, Structure summary