1HNE

Structure of human neutrophil elastase in complex with a peptide chloromethyl ketone inhibitor at 1.84-angstroms resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.84 Å
  • R-Value Observed: 0.164 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of human neutrophil elastase in complex with a peptide chloromethyl ketone inhibitor at 1.84-A resolution.

Navia, M.A.McKeever, B.M.Springer, J.P.Lin, T.Y.Williams, H.R.Fluder, E.M.Dorn, C.P.Hoogsteen, K.

(1989) Proc Natl Acad Sci U S A 86: 7-11

  • DOI: https://doi.org/10.1073/pnas.86.1.7
  • Primary Citation of Related Structures:  
    1HNE

  • PubMed Abstract: 

    Human neutrophil elastase (HNE) has been implicated as a major contributor to tissue destruction in various disease states, including emphysema. The structure of HNE, at neutral pH, in complex with methoxysuccinyl-Ala-Ala-Pro-Ala chloromethyl ketone (MSACK), has been solved and refined to an R factor of 16.4% at 1.84-A resolution. Results are consistent with the currently accepted mechanism of peptide chloromethyl ketone inhibition of serine proteases, in that MSACK cross-links the catalytic residues His-57 and Ser-195. The structure of the HNE-MSACK complex is compared with that of porcine pancreatic elastase in complex with L-647,957, a beta-lactam inhibitor of both elastases. The distribution of positively charged residues on HNE is highly asymmetric and may play a role in its specific association with the underlying negatively charged proteoglycan matrix of the neutrophil granules in which the enzyme is stored.


  • Organizational Affiliation

    Merck Sharp & Dohme Research Laboratories, Rahway, NJ 07065.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HUMAN LEUCOCYTE ELASTASEA [auth E]218Homo sapiensMutation(s): 0 
EC: 3.4.21.37
UniProt & NIH Common Fund Data Resources
Find proteins for P08246 (Homo sapiens)
Explore P08246 
Go to UniProtKB:  P08246
PHAROS:  P08246
GTEx:  ENSG00000197561 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08246
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
METHOXYSUCCINYL-ALA-ALA-PRO-ALA CHLOROMETHYL KETONE INHIBITORB [auth I]6N/AMutation(s): 0 
Sequence Annotations
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
ALV
Query on ALV
B [auth I]PEPTIDE-LIKEC3 H9 N O2ALA
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.84 Å
  • R-Value Observed: 0.164 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.53α = 90
b = 74.53β = 90
c = 70.88γ = 120
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1989-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2012-12-12
    Changes: Other