A Three-Dimensional Model of Human Lysyl Oxidase, a Cross-Linking Enzyme

Sylvain Vallet 1 Marc Guéroult 2 Nicolas Belloy 2, 3 Manuel Dauchez 2, 3 Sylvie Ricard-Blum 4
1 MMSB - Microbiologie moléculaire et biochimie structurale / Molecular Microbiology and Structural Biochemistry
2 MEDyC - Matrice extracellulaire et dynamique cellulaire - UMR 7369
3 P3M - Plateau Technique de Modélisation Moléculaire Multi-échelle
4 ASPE - Assemblages Supramoléculaires Péricellulaires et Extracellulaires
ICBMS - Institut de Chimie et Biochimie Moléculaires et Supramoléculaires
Abstract : Lysyl oxidase (LOX) is a cross-linking enzyme identified 50 years ago, but its 3D structure is still unknown. We have thus built a 3D model of human LOX by homology modeling using the X-ray structure of human lysyl oxidase-like 2 as a template. This model is the first one to recapitulate all known biochemical features of LOX, namely, the coordination of the copper ion and the formation of the lysine tyrosylquinone cofactor and the disulfide bridges. Furthermore, this model is stable during a 1 μs molecular dynamics simulation. The catalytic site is located in a groove surrounded by two loops. The distance between these loops fluctuated during the simulations, which suggests that the groove forms a hinge with a variable opening, which is able to accommodate the various sizes of LOX substrates. This 3D model is a prerequisite to perform docking experiments with LOX substrates and other partners to identify binding sites and to design new LOX inhibitors specific for therapeutic purpose.
Document type :
Journal articles
Complete list of metadatas

Cited literature [74 references]  Display  Hide  Download
https://hal.univ-reims.fr/hal-02149262
Contributor : Nicolas Belloy <>
Submitted on : Thursday, June 6, 2019 - 11:30:53 AM
Last modification on : Wednesday, November 20, 2019 - 2:39:31 AM

File

acsomega.9b00317.pdf
Explicit agreement for this submission

Identifiers

Collections

URCA | CNRS | UNIV-LYON1 | MEDYC | INC-CNRS | INSA-LYON | INSA-GROUPE | UDL

Citation

Sylvain Vallet, Marc Guéroult, Nicolas Belloy, Manuel Dauchez, Sylvie Ricard-Blum. A Three-Dimensional Model of Human Lysyl Oxidase, a Cross-Linking Enzyme. ACS Omega, ACS Publications, 2019, 4 (5), pp.8495-8505. ⟨10.1021/acsomega.9b00317⟩. ⟨hal-02149262⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

31

Files downloads

42

 

HAL-contact@univ-reims.fr