31MR | pdb_000031mr

CryoEM structure of a catalytically inactive CXC Chemokine-degrading protease SpyCEP from Streptococcus pyogenes complexed with an anti-PA-domain monoclonal antibody

PDB DOI: https://doi.org/10.2210/pdb31MR/pdb
EM Map EMD-58555: EMDB EMDataResource

Classification: PROTEIN BINDING
Organism(s): Streptococcus pyogenes, Mus musculus
Expression System: Escherichia coli BL21(DE3)
Mutation(s): Yes

Deposited: 2026-06-12 Released: 2026-07-01
Deposition Author(s): Lau, R.J., Barritt, J.D., Wu, G.H.Y., Huemer, C.B., Matthews, S.
Funding Organization(s): Medical Research Council (MRC, United Kingdom)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.07 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

Validation slider image for 31MR

This is version 1.0 of the entry. See complete history.

Literature

SpyCEP dismantles neutrophil immunity via disorder-driven chemokine remodeling and GAG targeting

Lau, R.J., Giblin, S.P., Sugar, A., Di Maio, A., Tassini, G., Huse, K., Chorev, D., Chen, Y., Wu, G.H.Y., Huemer, C.B., Kim, S.Y., Matthews, J., Muloud, B., Chen, L., McKenna, S., Xu, Y., Massai, L., Muzzi, C., Ferhati, X., Necchi, F., Moriel, D.G., Feizi, T., Liu, Y., Pease, J.E., Sriskandan, S., Matthews, S.

(2026) Pnas

DOI: https://doi.org/10.1073/pnas.2520164123

Macromolecule Content

Total Structure Weight: 198.76 kDa
Atom Count: 12,662
Modeled Residue Count: 1,634
Deposited Residue Count: 1,802
Unique protein chains: 4

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cell envelope proteinase A	A	221	Streptococcus pyogenes	Mutation(s): 1 Gene Names: cepA, SP119_0326
UniProt
Find proteins for Q201Z7 (Streptococcus pyogenes) Explore Q201Z7 Go to UniProtKB: Q201Z7
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q201Z7
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cell envelope proteinase A	B	1,346	Streptococcus pyogenes	Mutation(s): 2 Gene Names: cepA, SP119_0326
UniProt
Find proteins for Q201Z7 (Streptococcus pyogenes) Explore Q201Z7 Go to UniProtKB: Q201Z7
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q201Z7
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Anti-PA-domain monoclonal antibody (3F2G10) Heavy chain variable region	C [auth H]	122	Mus musculus	Mutation(s): 0

Find similar proteins by:

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Anti-PA-domain monoclonal antibody (3F2G10) Light chain variable region	D [auth L]	113	Mus musculus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.07 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC
MODEL REFINEMENT	ISOLDE

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-07-01

Deposition Author(s):

Funding Organization	Location	Grant Number
Medical Research Council (MRC, United Kingdom)	United Kingdom	UKRI682

Revision History (Full details and data files)

Version 1.0: 2026-07-01
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.