5SYT

Crystal Structure of ZMPSTE24


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.219 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Human CaaX protease ZMPSTE24 expressed in yeast: Structure and inhibition by HIV protease inhibitors.

Clark, K.M.Jenkins, J.L.Fedoriw, N.Dumont, M.E.

(2017) Protein Sci 26: 242-257

  • DOI: https://doi.org/10.1002/pro.3074
  • Primary Citation of Related Structures:  
    5SYT

  • PubMed Abstract: 

    The function and localization of proteins and peptides containing C-terminal "CaaX" (Cys-aliphatic-aliphatic-anything) sequence motifs are modulated by post-translational attachment of isoprenyl groups to the cysteine sulfhydryl, followed by proteolytic cleavage of the aaX amino acids. The zinc metalloprotease ZMPSTE24 is one of two enzymes known to catalyze this cleavage. The only identified target of mammalian ZMPSTE24 is prelamin A, the precursor to the nuclear scaffold protein lamin A. ZMPSTE24 also cleaves prelamin A at a second site 15 residues upstream from the CaaX site. Mutations in ZMPSTE24 result in premature-aging diseases and inhibition of ZMPSTE24 activity has been reported to be an off-target effect of HIV protease inhibitors. We report here the expression (in yeast), purification, and crystallization of human ZMPSTE24 allowing determination of the structure to 2.0 Å resolution. Compared to previous lower resolution structures, the enhanced resolution provides: (1) a detailed view of the active site of ZMPSTE24, including water coordinating the catalytic zinc; (2) enhanced visualization of fenestrations providing access from the exterior to the interior cavity of the protein; (3) a view of the C-terminus extending away from the main body of the protein; (4) localization of ordered lipid and detergent molecules at internal and external surfaces and also projecting through fenestrations; (5) identification of water molecules associated with the surface of the internal cavity. We also used a fluorogenic assay of the activity of purified ZMPSTE24 to demonstrate that HIV protease inhibitors directly inhibit the human enzyme in a manner indicative of a competitive mechanism.


  • Organizational Affiliation

    Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, 14642.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CAAX prenyl protease 1 homolog480Homo sapiensMutation(s): 0 
Gene Names: ZMPSTE24FACE1STE24
EC: 3.4.24.84
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for O75844 (Homo sapiens)
Explore O75844 
Go to UniProtKB:  O75844
PHAROS:  O75844
GTEx:  ENSG00000084073 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO75844
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 8 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
PC1
Query on PC1

Download Ideal Coordinates CCD File 
D [auth A]1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
C44 H88 N O8 P
NRJAVPSFFCBXDT-HUESYALOSA-N
CXE
Query on CXE

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E [auth A]PENTAETHYLENE GLYCOL MONODECYL ETHER
C20 H42 O6
QAXPOSPGRHYIHE-UHFFFAOYSA-N
C8E
Query on C8E

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F [auth A]
G [auth A]
H [auth A]
I [auth A]
J [auth A]
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A]
(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE
C16 H34 O5
FEOZZFHAVXYAMB-UHFFFAOYSA-N
PEG
Query on PEG

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U [auth A]DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
SO4
Query on SO4

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B [auth A],
C [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

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S [auth A],
T [auth A]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
DMS
Query on DMS

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V [auth A],
W [auth A],
X [auth A]
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
R [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.219 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 149.455α = 90
b = 84.56β = 119.07
c = 76.885γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesU54 GM094611

Revision History  (Full details and data files)

  • Version 1.0: 2016-11-02
    Type: Initial release
  • Version 1.1: 2017-02-08
    Changes: Database references
  • Version 1.2: 2017-09-13
    Changes: Author supporting evidence
  • Version 1.3: 2019-12-25
    Changes: Author supporting evidence
  • Version 1.4: 2023-10-04
    Changes: Data collection, Database references, Refinement description