6VEP

Human insulin in complex with the human insulin microreceptor in turn in complex with Fv 83-7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.195 

wwPDB Validation   3D Report Full Report



Literature

A structurally minimized yet fully active insulin based on cone-snail venom insulin principles.

Xiong, X.Menting, J.G.Disotuar, M.M.Smith, N.A.Delaine, C.A.Ghabash, G.Agrawal, R.Wang, X.He, X.Fisher, S.J.MacRaild, C.A.Norton, R.S.Gajewiak, J.Forbes, B.E.Smith, B.J.Safavi-Hemami, H.Olivera, B.Lawrence, M.C.Chou, D.H.

(2020) Nat Struct Mol Biol 27: 615-624

  • DOI: 10.1038/s41594-020-0430-8
  • Primary Citation of Related Structures:  
    6VEP, 6VEQ, 6VET

  • PubMed Abstract: 
  • Human insulin and its current therapeutic analogs all show propensity, albeit varyingly, to self-associate into dimers and hexamers, which delays their onset of action and makes blood glucose management difficult for people with diabetes. Recently, we de ...

    Human insulin and its current therapeutic analogs all show propensity, albeit varyingly, to self-associate into dimers and hexamers, which delays their onset of action and makes blood glucose management difficult for people with diabetes. Recently, we described a monomeric, insulin-like peptide in cone-snail venom with moderate human insulin-like bioactivity. Here, with insights from structural biology studies, we report the development of mini-Ins-a human des-octapeptide insulin analog-as a structurally minimal, full-potency insulin. Mini-Ins is monomeric and, despite the lack of the canonical B-chain C-terminal octapeptide, has similar receptor binding affinity to human insulin. Four mutations compensate for the lack of contacts normally made by the octapeptide. Mini-Ins also has similar in vitro insulin signaling and in vivo bioactivities to human insulin. The full bioactivity of mini-Ins demonstrates the dispensability of the PheB24-PheB25-TyrB26 aromatic triplet and opens a new direction for therapeutic insulin development.


    Organizational Affiliation

    Department of Biochemistry, University of Utah, Salt Lake City, UT, USA. dannychou@stanford.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Insulin chain A AGMS21Homo sapiensMutation(s): 0 
Gene Names: INS
Find proteins for P01308 (Homo sapiens)
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PHAROS:  P01308
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Insulin B chain BHNT30Homo sapiensMutation(s): 0 
Gene Names: INS
Find proteins for P01308 (Homo sapiens)
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PHAROS:  P01308
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Fv 83-7 heavy chain CIOU138Mus musculusMutation(s): 0 
Gene Names: Igh
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Fv 83-7 light chain DJPV121Mus musculusMutation(s): 0 
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Insulin receptor subunit alpha EKQW317Homo sapiensMutation(s): 0 
Gene Names: INSR
EC: 2.7.10.1
Find proteins for P06213 (Homo sapiens)
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PHAROS:  P06213
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Insulin receptor subunit beta FLRX16Homo sapiensMutation(s): 0 
Gene Names: INSR
EC: 2.7.10.1
Find proteins for P06213 (Homo sapiens)
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PHAROS:  P06213
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Oligosaccharides

Help

Entity ID: 7
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
Y, c
3 N-Glycosylation Oligosaccharides Interaction
Entity ID: 8
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
Z, a, f, g, j
4 N-Glycosylation Oligosaccharides Interaction
Entity ID: 9
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
b, h
2 N-Glycosylation Oligosaccharides Interaction
Entity ID: 10
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
d
5 N-Glycosylation Oligosaccharides Interaction
Entity ID: 11
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
e
3 N-Glycosylation Oligosaccharides Interaction
Entity ID: 12
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
i
5 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.03α = 90
b = 130.12β = 90.27
c = 148.18γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (NHMRC, Australia)AustraliaAPP1058233
National Health and Medical Research Council (NHMRC, Australia)AustraliaAPP1143546

Revision History 

  • Version 1.0: 2020-06-03
    Type: Initial release
  • Version 1.1: 2020-06-17
    Changes: Database references
  • Version 1.2: 2020-07-22
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary