4Q7Y

Neutrophil serine protease 4 (PRSS57) apo form 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.193 

wwPDB Validation 3D Report Full Report



Literature

Structures of neutrophil serine protease 4 reveal an unusual mechanism of substrate recognition by a trypsin-fold protease.

Lin, S.J.Dong, K.C.Eigenbrot, C.van Lookeren Campagne, M.Kirchhofer, D.

(2014) Structure 22: 1333-1340

  • DOI: 10.1016/j.str.2014.07.008
  • Primary Citation of Related Structures:  
    4Q7X, 4Q7Y, 4Q80, 4Q7Z

  • PubMed Abstract: 
  • Trypsin-fold proteases, the largest mammalian protease family, are classified by their primary substrate specificity into one of three categories, trypsin-like, chymotrypsin-like, and elastase-like, based on key structural features of their active site ...

    Trypsin-fold proteases, the largest mammalian protease family, are classified by their primary substrate specificity into one of three categories, trypsin-like, chymotrypsin-like, and elastase-like, based on key structural features of their active site. However, the recently discovered neutrophil serine protease 4 (NSP4, also known as PRSS57) presents a paradox: NSP4 exhibits a trypsin-like specificity for cleaving substrates after arginine residues, but it bears elastase-like specificity determining residues in the active site. Here we show that NSP4 has a fully occluded S1 pocket and that the substrate P1-arginine adopts a noncanonical "up" conformation stabilized by a solvent-exposed H-bond network. This uncommon arrangement, conserved in all NSP4 orthologs, enables NSP4 to process substrates after both arginine as well as post-translationally modified arginine residues, such as methylarginine and citrulline. These findings establish a distinct paradigm for substrate recognition by a trypsin-fold protease and provide insights into the function of NSP4.


    Organizational Affiliation

    Department of Early Discovery Biochemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA. Electronic address: dak@gene.com.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine protease 57A250Homo sapiensMutation(s): 0 
Gene Names: PRSS57PRSSL1UNQ782/PRO1599
EC: 3.4.21
Find proteins for Q6UWY2 (Homo sapiens)
Explore Q6UWY2 
Go to UniProtKB:  Q6UWY2
NIH Common Fund Data Resources
PHAROS  Q6UWY2
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 2
MoleculeChainsChain Length2D Diagram Glycosylation
alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose
B
2 N-Glycosylation
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download CCD File 
A
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.193 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.636α = 90
b = 86.636β = 90
c = 69.351γ = 120
Software Package:
Software NamePurpose
BOSdata collection
BUSTERrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-09-03
    Type: Initial release
  • Version 1.1: 2014-09-17
    Changes: Database references
  • Version 1.2: 2017-11-22
    Changes: Refinement description
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary